Heatsink Kits for Antminer S1, Has anyone used these?

[googlemaster1]

I was thinking of messing around with some of my S1'.... maybe custom casing... maybe overclocking and heatsinks?  Not sure... just want to play... but Question: has anyone used these?  Do they quiet the miner?  Do they actually WORK?  Do they increase hashrate?  Please discuss.

http://www.ebay.com/itm/Bitcoin-Miner-Antminer-ASIC-BTC-180GH-s-Cooling-kit-72pcs-DIY-Aluminum-Heatsink-/121288925078?pt=LH_DefaultDomain_0&hash=item1c3d621f96

[1714488167]

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[1714488167]

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[1714488167]

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[KyrosKrane]

That could be interesting. I should note the heat sinks are cheap enough that if they worked, I'd have expected Bitmain themselves to add them and crank up performance a few more GH/s. Also, looking at my Antminer, the production heatsink is on the opposite side of the chips.

That said, assuming you don't screw up the installation, adding a heatsink should be fairly harmless at worst, and it may help a bit at best. I remember reading a couple of guides which mentioned that pointing a fan at the chips can also reduce reported temps by a couple of degrees, though there's no indication of whether that allows for further overclocking or what. I mean, if it's already overclocked as far as the software will allow, and the temp is acceptable, there's no real benefit to dropping the temp further.

[googlemaster1]

Thanks for the quality replies, I probably wont bother and just throw a small energy effecient fan pointing at the outside of my chips.    I keep my miners in the closet with a circulatory fan in there and the door cracked so I mean, increasing cooling come the summer months has been a concern of mine.  (AC Units would trip my already pushed to the limit breakers)

[AForceNinja]

I bought some pink ones for shits and giggles...they are in the mail right now

[miter_myles]

http://www.ebay.com/itm/360461387209?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649

^ have gone through a couple batches of these for the Ant's DC chips

[Unacceptable]

Got any pics on where to apply these

Thanks!!!!!!!!!!!! 

[AussieHash]

I've ordered a set if these. Will post once they've arrived.

[googlemaster1]

Alright... I might get a set of them perhaps, but I'll play the wait and see game until these folks tell me how they are.  Someone want to post pics and talk about temps or hashrates would be stellar!

[alexrossi]

Useless for standard OC

Also if u go over 400 mhz, w or w/o heatsinks u still get a lot of hw error

[AussieHash]

We're experiencing a hot summer down under at the moment. A few of my ants have developed ASIC Status XOXOXOXO which thankfully resolves with shutdown and cooling to room temp.

Heat sinks probably won't be as necessary in cold climates or in a temperature controlled room.

[klondike_bar]

Ive used these sort of heatsinks for my antminer inductor chips to keep them a bit cooler, but the benefit is pretty negligible.

I would advise against sticking one to each chip - you could easily spend 15min trying to do a single antminer and maybe gain a few degrees or 2-5GH

[precrime3]

Would putting these on plus outing a fan on the chips vs on the mounts positively affect temps a preety good amount?

[klondike_bar]

Would putting these on plus outing a fan on the chips vs on the mounts positively affect temps a preety good amount?

of course it would. the point is, what benefit will you gain by spending the money and the 25min its going to take to stick these on one at a time? (trust me, it will take some time to get each one on, I had to do similar with 112 bitfury chips and it was a pain, but at least allows much more overclocking with a bitfury)

[AussieHash]

Antminer with heat sinks and Cougar fan applied.
32mm 6-32 UNC screws with a spacer bolt work perfectly

I am seeing about 300rpm slower fan speed, and about 3 degrees cooler at 400MHz


Without the additional fan


The heat sinks. Each set has a large bag of 64 ASIC heatsinks and a small bag with 8 DCDC heatsinks. All come with thermal double sided tape applied. Be careful when placing the ASIC heatsinks as they're "slightly" bigger than the chip top, if you touch the adjacent 4 resistors/capacitors ? The Antminer will short out and reboot.

[precrime3]

Where are the DC-DC chips? Also thinking of doing this, if I get 3 degrees lower temps and lower RPM xD

[googlemaster1]

Thanks for the reply AussieHash.  I might get a set for the Ant I want to put in my living room.  I would imagine that the slower fan speed would result in a quieter operation as well.  Did you find this to be the case?

[AussieHash]

I'd say still too loud for a living room. Bitmain's fan is still audible, but doesn't have the "clothes dryer revving up" quality.

Edit : The cougar fans definitely move less air than the bitmain fan, however it may be possible to place front and back cougar fans for a quiet mod.

[precrime3]

That's what I was thinking, hopefully temps stay okay, wouldn't try overclocking it 

[tripppn]

I really doubt those heatsinks do anything.  I added a second fan to pull air out the back and that really helped a lot.  I tried a couple diffrent fans and this one really is da shit:

http://www.newegg.com/Product/Product.aspx?Item=N82E16835553002

Get some #8-32 x 1-1/4" machine screws and #8-32 hex nut for a spacer and your golden.  Without the spacer the fan blades will hit the rivets and I broke a fan blade that way... pissed, it was a brand new fan!!!

[crazyates]

I really doubt those heatsinks do anything.  I added a second fan to pull air out the back and that really helped a lot.  I tried a couple diffrent fans and this one really is da shit:

http://www.newegg.com/Product/Product.aspx?Item=N82E16835553002

Get some #8-32 x 1-1/4" machine screws and #8-32 hex nut for a spacer and your golden.  Without the spacer the fan blades will hit the rivets and I broke a fan blade that way... pissed, it was a brand new fan!!!

I have several of those same fans. They really are nice.

We ended up getting a rosewill fan that came with a grill, so we put the grill between the ant and the fan, and the grill presses into the screws sticking out enough to gap the fan. Not the nicest thing, but it works, is solid, and no broken blades! 

[faxfan2002]

I really doubt those heatsinks do anything.  I added a second fan to pull air out the back and that really helped a lot.  I tried a couple diffrent fans and this one really is da shit:

http://www.newegg.com/Product/Product.aspx?Item=N82E16835553002

Get some #8-32 x 1-1/4" machine screws and #8-32 hex nut for a spacer and your golden.  Without the spacer the fan blades will hit the rivets and I broke a fan blade that way... pissed, it was a brand new fan!!!

These fans work fine (slightly intended) -

http://www.amazon.co.uk/gp/product/B0026ZPFCK/ref=oh_details_o01_s00_i00?ie=UTF8&psc=1

[tripppn]

I haven't OCed yet. what do you guys find to be a good tolerable temp for these things?

Right now my ants are runnning at 45 with 2k fan speed.

[AussieHash]

I really doubt those heatsinks do anything.

Don't know if they help, but the bare ASIC and DCDC chips are too hot to touch normally. With the heatsinks the nearest DCDC and first 3 rows of ASICs are much cooler. When 2 ants are nearby the air leak "wind tunnel" cools a few more rows of ASIC chips with the heatsinks.

I have still seen one of my ants develop XXXX with the cougar fan and heatsinks, without a fall in mining performance.

[googlemaster1]

I really doubt those heatsinks do anything.  I added a second fan to pull air out the back and that really helped a lot.  I tried a couple diffrent fans and this one really is da shit:

http://www.newegg.com/Product/Product.aspx?Item=N82E16835553002

Get some #8-32 x 1-1/4" machine screws and #8-32 hex nut for a spacer and your golden.  Without the spacer the fan blades will hit the rivets and I broke a fan blade that way... pissed, it was a brand new fan!!!

I have several of those same fans. They really are nice.

We ended up getting a rosewill fan that came with a grill, so we put the grill between the ant and the fan, and the grill presses into the screws sticking out enough to gap the fan. Not the nicest thing, but it works, is solid, and no broken blades! 

What the hell!  I was able to get those fans at half the price.... check TigerDirect .  Woof

[jermwerty]

Why is everyone buying 1500 RPM max fans and putting them on the rear of ANTMINERs and think they do ANYTHING?    

The fans that come WITH ANTMiners are good for almost 4000 RPM!  I would just trust a datacenter-intended fan any day over this "enthusiast" crap made to OC your i7...

I've just been buying the same model my Avalons had for $8:  (and honestly, if you compare an Avalon "module" to an ANTMiner "module" you can tell where the basic layout came from!)

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=201054730658

Not the right power connector but the fan is comparable to the "OEM" ANTMiner fan...  

Think about it this way, that Cougar fan is 60CFM.  That fan I linked to is 130CFM.  WANT COOLING?  GAME OVER.

Aussie - have you tried getting a molex to fan adapter and running the ANTMINER fan @ 100%?  If you are having overheating issues, thats one way to fix it!

(and yes, it will be LOUD)

[precrime3]

Thats the problem, its loud. At least for me it is xD

[AussieHash]

Why is everyone buying 1500 RPM max fans and putting them on the rear of ANTMINERs and think they do ANYTHING?    

The fans that come WITH ANTMiners are good for almost 4000 RPM!  I would just trust a datacenter-intended fan any day over this "enthusiast" crap made to OC your i7...

Aussie - have you tried getting a molex to fan adapter and running the ANTMINER fan @ 100%?  If you are having overheating issues, thats one way to fix it!

My Jupiters are in a datacentre, but my 1TH of ants are at home, hence noise pollution is a consideration.  Even in hot weather I don't think i've seen the OEM ant fans go much above 3000RPM.  At that speed I agree the PWM cougar fan is interfering with the air output from the OEM fan (when it was running at 3000RPM).

I originally had all of my ants sitting on the foam base they were shipping on (with the 1" strips torn off).  This stops airflow under the ASIC boards.  

Since adding the heatsinks and Cougar fans, placing them flat on the table 5cm apart, I see Antminer temps of around 41-42 degrees and fan speeds of 2200-2400RPM at 400MHz with =< 1% errors.  (my newest ant only has heatsinks, no exhaust fan, and at 400MHz, is 43 degrees with 2220 RPM).

The Cougars came with optional  molex connectors and I am aware of a OEM fan wire mod to set the fan speed to max.   I've not explored either option.

Overall (in Aussie summer), I think i can keep my ants <47degrees without more than the above (Cougar fans + heatsinks), plus an open window.  Just make sure you don't sit your ants on the packing foam like I did !

[sudoku]

Thats the problem, its loud. At least for me it is xD

The loudness doesn't bother as much as the whine which a couple of the fans has developed.

[aztecminer]

so ... the overall consensus is that these heatsinks will add additional cooling of about 3 degrees ??

and i was wondering if anyone can tell me if there is a curing time for the heatsinks before the ant can be used again for hashing ??

[AussieHash]

so ... the overall consensus is that these heatsinks will add additional cooling of about 3 degrees ??

and i was wondering if anyone can tell me if there is a curing time for the heatsinks before the ant can be used again for hashing ??

I put the heatsinks on whilst hashing. However just be careful not to touch the surrounding capacitors?/resistors or you'll see your Antminer short out and reboot.

[crazyates]

I want to know if anyone measured a power drop from running the VRMs at a cooler temp? Ya? Anyone? 

[GiLa]

If memory serves me well, copper is better for transferring the heat, while aluminium is better to dissipate the heat.

So therefore wouldn't copper heat sinks be better for this sort of applications?

I also live in Australia and fark me its been BS hot. So upon ordering my Antminer S1, I've been looking on ways on how to cool these beasts down.

All the forged copper heat sinks sizes that I can purchase within Australia are:

6.5mm x 6.5mm
10mm x 10mm
and 14mm x 14mm

http://lib.store.yahoo.net/lib/sidewindercomputers/bmrc1.jpg

now according to the specification listed, the physical dimensions are as follows:

The BM1380 chip is a QFN 56 with an overall dimension of 8mm x 8mm
The VRM is using IHLP5050 which according to Vishay is 12.9mm x 13.2mm

The main question I ask to other owners

Is there enough spacing between the asic chip and the capacitors to fit a 10mm x 10mm (given the copper ones are 0.6mm overall bigger than those ebay ones), hopefully this can be rectified by using 1.5mm Phobya Thermal Pad

Is there enough spacing between the VRM and the F12 capacitor to fit a 14mm x 14mm as it is overall 1.5mm bigger.
 

[jomant]

I worked on Z10 IBM Server Racks and I can tell you this. Exhaust fan always faster then the Intake for best performance. This is not a cute PC tower. Cool that thing like a Server. So try it out. Here the outcomes!

Stock fan intake with Mickey Mouse 1000 rpm fan as exhaust= Fast fan goes to 2-3000 rpm 1000 rpm fan can keep up and gets speed up by stronger air flow. There we have back-pressure and heat stays longer in place + pressure resistance for the faster fan. Just give it a shot and try it out. Use a external thermometer for the measurements.

2 the same fans can work great but on the long run the exhaust will work harder due to Pressure turbulence from the first fan (thats why ships have there propeller offset.) Due to previews sentence is the Lifespan of the fan lower, when the exhaust slows down due to that fact you will have the same issue in example 1

So I am new to the Bitcoin world but I needed to tell Business owners that they need a new rack due to overheating caused by a know it all programmer (I can't programmXD btw) replacing a exhaust fan what looks like the oem fan but was a 2000 instead a 4000 inside a closed IBM Z10 Paraboard Server Housing. The replacement cost $24.000  (that's the insurgence price. So you guys teach me overclocking stuff and I help u to keep ur Hardware alive

ohhh I like the heatsink idea btw. Notice to at the first pictures that he aligned the fins towards the flow. I seen some nutcases putting them up.
I received my s1 in the mail couple  days ago. Still run the stock fan no OC work don't to it. I have the German designed Cougar fans as well but they blow from the side in a 45 degree angle from the main fan side aganst the blades. I ordered some Alu heat sinks (cooper is better but heavier as well and i dont trust the thermal glue stuff that much.) My future setup (in the next 3 weeks) is 2 Delta Fan's (they are very LOUD!!!). 2 the same fans but intake speed reduced by 25% where the Exhaust is hauling full power.

That will be a 60 dBA Setup but its the best cooling u can get (besides water or liquid nitrogen XD)
So don't put that in your bedroom. http://www.cwc-group.com/pfc1212de.html
I put mine in the storage room (almost empty with ac vent, live in super humid hot Florida)


 

[jomant]

Here the Update after overclocking and adding Heatsink's to the ASCI Chips (64) and the Converter chips ( 8 )

http://s26.postimg.org/9o51g751x/Antminer_Status.jpg
http://s26.postimg.org/fb1edo7kl/CAM00448.jpg

Due to my config I only get 0.69% Hardware errors and stay @42 Degrees C  

Here again the Error rate Formula: Error % = HW / ( HW + DiffA + DiffR) * 100

PS: Not a Delta Fan connected wait for my 50W controller but with the stock fan and a cheap 120mm out of a old Tower I get down to 42. Guess for -3 degree with the delta it's not worth it when I see people OC temp of close to 50

[googlemaster1]

Man Jomant, now I really want to get these again... I almost forgot about them.  I am about to overclock my Ants since they are out of warranty now anyway

[jomant]

As I said. DON'T go full 400Hz. Look at mine it hits 200GH/s but low Hardware Error % and good Temp and don't for get the Heatsinks for the Converters (Total of 8 )

[tranzsport]

As I said. DON'T go full 400Hz. Look at mine it hits 200GH/s but low Hardware Error % and good Temp and don't for get the Heatsinks for the Converters (Total of 8 )

may I ask what hex code you're using for 393 MHZ ?
I tried '5f82' but got 2.5% on many of my machines, but going for 387MHZ using hex code '5e82' seems to give me 0.5% error with 3 Ghz less total hash output. This seems to be consistent across atleast 10 of my S1 ants

[jomant]

As I said. DON'T go full 400Hz. Look at mine it hits 200GH/s but low Hardware Error % and good Temp and don't for get the Heatsinks for the Converters (Total of 8 )

may I ask what hex code you're using for 393 MHZ ?
I tried '5f82' but got 2.5% on many of my machines, but going for 387MHZ using hex code '5e82' seems to give me 0.5% error with 3 Ghz less total hash output. This seems to be consistent across atleast 10 of my S1 ants

I am still a noob XD but I played around alot. Those settings are the best for speed and low HW Error % Rate
Maybe as a return you can help me to find a fan. 120mm 100-130 cfm by a lower then 50 dBA with max 1.05 Amp Put my Delta on the unit via direct power-supply gets the antminer down to 37 C.......but plus 4 Amps @65dBA. That is the noise level of a industrial floor cleaner.
BTW NEVER EVER put that thing on the Blade....EVER 4Amps pulls 45 Watt. So I assume the blade will burn off. Just a guess never tryed it.     

Jomant's Magic Settings for 200 GH/s and a Hardware Error Rate of 0.69 %
Tip me some BTC if it works for you


option ‘freq_value’ ’5f05′
option ‘chip_freq’ ’393.75′
option ‘timeout’ ’36′

[tranzsport]

As I said. DON'T go full 400Hz. Look at mine it hits 200GH/s but low Hardware Error % and good Temp and don't for get the Heatsinks for the Converters (Total of 8 )

may I ask what hex code you're using for 393 MHZ ?
I tried '5f82' but got 2.5% on many of my machines, but going for 387MHZ using hex code '5e82' seems to give me 0.5% error with 3 Ghz less total hash output. This seems to be consistent across atleast 10 of my S1 ants

I am still a noob XD but I played around alot. Those settings are the best for speed and low HW Error % Rate
Maybe as a return you can help me to find a fan. 120mm 100-130 cfm by a lower then 50 dBA with max 1.05 Amp Put my Delta on the unit via direct power-supply gets the antminer down to 37 C.......but plus 4 Amps @65dBA. That is the noise level of a industrial floor cleaner.
BTW NEVER EVER put that thing on the Blade....EVER 4Amps pulls 45 Watt. So I assume the blade will burn off. Just a guess never tryed it.     

Jomant's Magic Settings for 200 GH/s and a Hardware Error Rate of 0.69 %
Tip me some BTC if it works for you


option ‘freq_value’ ’5f05′
option ‘chip_freq’ ’393.75′
option ‘timeout’ ’36′

tried these settings and got the same error rate as my previos hex settings
maybe its my miners.

but regarding the fan,
I use the stock fan as intake and a delta AFC1212DE as an exhuast on the other end.
you get the same results if you use the stock fan as exhaust and the delta as intake.
Just make sure to cut the blue wire on the additional fan you buy so it runs at full speed the whole time, otherwise it wont properly sense the voltage coming from the miner to adjust rpm.

the delta is 51 dB with 200 CFM and uses 1.3A @12vdc so no big deal taking that power from the board. I have 25 ants with these fans as exhaust running for at least a month with no problems.

you can find it for $8 shipped on ebay just type in AFC1212DE

[jomant]

As I said. DON'T go full 400Hz. Look at mine it hits 200GH/s but low Hardware Error % and good Temp and don't for get the Heatsinks for the Converters (Total of 8 )

may I ask what hex code you're using for 393 MHZ ?
I tried '5f82' but got 2.5% on many of my machines, but going for 387MHZ using hex code '5e82' seems to give me 0.5% error with 3 Ghz less total hash output. This seems to be consistent across atleast 10 of my S1 ants

I am still a noob XD but I played around alot. Those settings are the best for speed and low HW Error % Rate
Maybe as a return you can help me to find a fan. 120mm 100-130 cfm by a lower then 50 dBA with max 1.05 Amp Put my Delta on the unit via direct power-supply gets the antminer down to 37 C.......but plus 4 Amps @65dBA. That is the noise level of a industrial floor cleaner.
BTW NEVER EVER put that thing on the Blade....EVER 4Amps pulls 45 Watt. So I assume the blade will burn off. Just a guess never tryed it.    

Jomant's Magic Settings for 200 GH/s and a Hardware Error Rate of 0.69 %
Tip me some BTC if it works for you


option ‘freq_value’ ’5f05′
option ‘chip_freq’ ’393.75′
option ‘timeout’ ’36′

tried these settings and got the same error rate as my previos hex settings
maybe its my miners.

but regarding the fan,
I use the stock fan as intake and a delta AFC1212DE as an exhuast on the other end.
you get the same results if you use the stock fan as exhaust and the delta as intake.
Just make sure to cut the blue wire on the additional fan you buy so it runs at full speed the whole time, otherwise it wont properly sense the voltage coming from the miner to adjust rpm.

the delta is 51 dB with 200 CFM and uses 1.3A @12vdc so no big deal taking that power from the board. I have 25 ants with these fans as exhaust running for at least a month with no problems.

you can find it for $8 shipped on ebay just type in AFC1212DE

Ahh ok I got the TFC1212DE @3.90A yours pulls only 1.6A what is awesome due to that it produces good pressure. Cool
About your issue:
I use a 650W power supply and got the heatsinks for ASIC and Converter on as seen above. What is ur temp?

Ohh PS do me a favor and unplug ur delta and hook it up to direct power from ur power supply just to see if the 1 extra amp less fixes the issue.

If you have TeamSpeak and a headset let me know. I am not to shy to talk to people !!!

[tranzsport]

As I said. DON'T go full 400Hz. Look at mine it hits 200GH/s but low Hardware Error % and good Temp and don't for get the Heatsinks for the Converters (Total of 8 )

may I ask what hex code you're using for 393 MHZ ?
I tried '5f82' but got 2.5% on many of my machines, but going for 387MHZ using hex code '5e82' seems to give me 0.5% error with 3 Ghz less total hash output. This seems to be consistent across atleast 10 of my S1 ants

I am still a noob XD but I played around alot. Those settings are the best for speed and low HW Error % Rate
Maybe as a return you can help me to find a fan. 120mm 100-130 cfm by a lower then 50 dBA with max 1.05 Amp Put my Delta on the unit via direct power-supply gets the antminer down to 37 C.......but plus 4 Amps @65dBA. That is the noise level of a industrial floor cleaner.
BTW NEVER EVER put that thing on the Blade....EVER 4Amps pulls 45 Watt. So I assume the blade will burn off. Just a guess never tryed it.    

Jomant's Magic Settings for 200 GH/s and a Hardware Error Rate of 0.69 %
Tip me some BTC if it works for you


option ‘freq_value’ ’5f05′
option ‘chip_freq’ ’393.75′
option ‘timeout’ ’36′

tried these settings and got the same error rate as my previos hex settings
maybe its my miners.

but regarding the fan,
I use the stock fan as intake and a delta AFC1212DE as an exhuast on the other end.
you get the same results if you use the stock fan as exhaust and the delta as intake.
Just make sure to cut the blue wire on the additional fan you buy so it runs at full speed the whole time, otherwise it wont properly sense the voltage coming from the miner to adjust rpm.

the delta is 51 dB with 200 CFM and uses 1.3A @12vdc so no big deal taking that power from the board. I have 25 ants with these fans as exhaust running for at least a month with no problems.

you can find it for $8 shipped on ebay just type in AFC1212DE

Ahh ok I got the TFC1212DE @3.90A yours pulls only 1.6A what is awesome due to that it produces good pressure. Cool
About your issue:
I use a 650W power supply and got the heatsinks for ASIC and Converter on as seen above. What is ur temp?

Ohh PS do me a favor and unplug ur delta and hook it up to direct power from ur power supply just to see if the 1 extra amp less fixes the issue.

If you have TeamSpeak and a headset let me know. I am not to shy to talk to people !!!

Oh, I think I know where you're going with this.. probably overloading the PCB and Voltage regulators in delivering the power to the fans as opposed to the ASICs?
this makes sense bcz heat is never an issue, I run giant fans on either side of my rig to make a tunnel effect and temps rarely ever go above 40c.
thanks for the advice, I will definitely try that tonight and let you know the results!

[jomant]

As I said. DON'T go full 400Hz. Look at mine it hits 200GH/s but low Hardware Error % and good Temp and don't for get the Heatsinks for the Converters (Total of 8 )

may I ask what hex code you're using for 393 MHZ ?
I tried '5f82' but got 2.5% on many of my machines, but going for 387MHZ using hex code '5e82' seems to give me 0.5% error with 3 Ghz less total hash output. This seems to be consistent across atleast 10 of my S1 ants

I am still a noob XD but I played around alot. Those settings are the best for speed and low HW Error % Rate
Maybe as a return you can help me to find a fan. 120mm 100-130 cfm by a lower then 50 dBA with max 1.05 Amp Put my Delta on the unit via direct power-supply gets the antminer down to 37 C.......but plus 4 Amps @65dBA. That is the noise level of a industrial floor cleaner.
BTW NEVER EVER put that thing on the Blade....EVER 4Amps pulls 45 Watt. So I assume the blade will burn off. Just a guess never tryed it.    

Jomant's Magic Settings for 200 GH/s and a Hardware Error Rate of 0.69 %
Tip me some BTC if it works for you


option ‘freq_value’ ’5f05′
option ‘chip_freq’ ’393.75′
option ‘timeout’ ’36′

tried these settings and got the same error rate as my previos hex settings
maybe its my miners.

but regarding the fan,
I use the stock fan as intake and a delta AFC1212DE as an exhuast on the other end.
you get the same results if you use the stock fan as exhaust and the delta as intake.
Just make sure to cut the blue wire on the additional fan you buy so it runs at full speed the whole time, otherwise it wont properly sense the voltage coming from the miner to adjust rpm.

the delta is 51 dB with 200 CFM and uses 1.3A @12vdc so no big deal taking that power from the board. I have 25 ants with these fans as exhaust running for at least a month with no problems.

you can find it for $8 shipped on ebay just type in AFC1212DE

Ahh ok I got the TFC1212DE @3.90A yours pulls only 1.6A what is awesome due to that it produces good pressure. Cool
About your issue:
I use a 650W power supply and got the heatsinks for ASIC and Converter on as seen above. What is ur temp?

Ohh PS do me a favor and unplug ur delta and hook it up to direct power from ur power supply just to see if the 1 extra amp less fixes the issue.

If you have TeamSpeak and a headset let me know. I am not to shy to talk to people !!!

Please do. I know that the common max for PWM Headers are around 1 Amp. The fan may parasite's the amps away from your chips. Each board got it's dedicated power inlet but the Delta got Amp Stats above 1 Amp plus u let the Exhaust run full blast anyways so no reason to let it control from the board. (What is a plus anyway exhaust need always to be faster then Intake otherwise you get Back-Pressure due to Air flow resistance.   

[jomant]

Does anybody got any experience with this fan?    Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm 

[ZiG]

Does anybody got any experience with this fan?    Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm 

Yep...using them since January...as output fan in push-pull conf...Stock is input, variable controlled by the Ant...Scythe is direct connected @ full speed...and is Quieter than stock...heatsinks on the chips...Aluminum 8mm x 8mm...Cooper 10mm x 10mm on the Volt chips and big COILs...low 40-ies degrees @406MHZ...205-210GH stable...in HOT Florida...

Phobya Thermal pads...0.5mm

Cheers,

ZiG

[cruzader]

My heatsinks are still in the mail (the 11x11x5 alu), but i got it 3c lower by adding a piece of paper.
https://i.imgur.com/Us4KSMH.jpg

[jomant]

Does anybody got any experience with this fan?    Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm  

Yep...using them since January...as output fan in push-pull conf...Stock is input, variable controlled by the Ant...Scythe is direct connected @ full speed...and is Quieter than stock...heatsinks on the chips...Aluminum 8mm x 8mm...Cooper 10mm x 10mm on the Volt chips and big COILs...low 40-ies degrees @406MHZ...205-210GH stable...in HOT Florida...

Phobya Thermal pads...0.5mm

Cheers,

ZiG

Awesome I just try to find the perfect fan here in conjunction with the unit. ( I am in Florida to btw )
So fan I looked @ Delta= To loud and to much amp flow Had the Delta 120mm 3.9A 256 cfm 5600RPM @66dba
Akasa 120/140 x25 Viper R PWN= 109.55cfm on 1600 RPM, It's a 120mm fan but the blades are 140mm @21.7dba
Cooljag Everflow 120x25mm 9 Blade PWM= 110.03 cfm 2400 RPM @39.5 dba

Does anybody finds the stock fan stats? cfm, RPM I know its a 1 Amp To I need to find a slide faster fan (perma 100% power) for Exhaust


Main-goal get it cool and not to loud. 

[tranzsport]

Does anybody got any experience with this fan?    Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm  

Yep...using them since January...as output fan in push-pull conf...Stock is input, variable controlled by the Ant...Scythe is direct connected @ full speed...and is Quieter than stock...heatsinks on the chips...Aluminum 8mm x 8mm...Cooper 10mm x 10mm on the Volt chips and big COILs...low 40-ies degrees @406MHZ...205-210GH stable...in HOT Florida...

Phobya Thermal pads...0.5mm

Cheers,

ZiG

Awesome I just try to find the perfect fan here in conjunction with the unit. ( I am in Florida to btw )
So fan I looked @ Delta= To loud and to much amp flow Had the Delta 120mm 3.9A 256 cfm 5600RPM @66dba
Akasa 120/140 x25 Viper R PWN= 109.55cfm on 1600 RPM, It's a 120mm fan but the blades are 140mm @21.7dba
Cooljag Everflow 120x25mm 9 Blade PWM= 110.03 cfm 2400 RPM @39.5 dba

Does anybody finds the stock fan stats? cfm, RPM I know its a 1 Amp To I need to find a slide faster fan (perma 100% power) for Exhaust


Main-goal get it cool and not to loud. 

not sure if you checked this before, but this link might help

http://www.digikey.com/product-search/en/fans-thermal-management/dc-fans/1179730

[ZiG]

Does anybody got any experience with this fan?    Scythe DFS123812H-3000 Ultra Kaze 120mm x 38mm  

Yep...using them since January...as output fan in push-pull conf...Stock is input, variable controlled by the Ant...Scythe is direct connected @ full speed...and is Quieter than stock...heatsinks on the chips...Aluminum 8mm x 8mm...Cooper 10mm x 10mm on the Volt chips and big COILs...low 40-ies degrees @406MHZ...205-210GH stable...in HOT Florida...

Phobya Thermal pads...0.5mm

Cheers,

ZiG

Awesome I just try to find the perfect fan here in conjunction with the unit. ( I am in Florida to btw )
So fan I looked @ Delta= To loud and to much amp flow Had the Delta 120mm 3.9A 256 cfm 5600RPM @66dba
Akasa 120/140 x25 Viper R PWN= 109.55cfm on 1600 RPM, It's a 120mm fan but the blades are 140mm @21.7dba
Cooljag Everflow 120x25mm 9 Blade PWM= 110.03 cfm 2400 RPM @39.5 dba

Does anybody finds the stock fan stats? cfm, RPM I know its a 1 Amp To I need to find a slide faster fan (perma 100% power) for Exhaust


Main-goal get it cool and not to loud. 

My stock fans are Delta...131CFM or so   citing from my memory...Scythe is 130 too...but not so loud at full speed...

Digikey is expensive...good reference though...I bought Scythe ..3 for $50 shipped...Amazon or Ebay...
 

[kabopar]

I think that the fins on the small adhesive heatsinks should be oriented vertically rather than horizontally, to improve convective air-flow (doesn't matter if you use a fan to blow on the sides of the S1).
Another option is to buy the 'bare' heatsinks (8.8x8.8x5mm), and purchase the double sided thermal interface separately.  I bought the heatsinks on eBay (AU $1.20 for a pack of 20) and the double sided thermal interface from a local electronics shop (a pack of 2 sheets for AU$12.95 from Jaycar).  This costs a bit lower than the US$16 per antminer S1 kit, but probably requires a bit more work in cutting and attaching the adhesive to the heatsinks.  It is probably safer to shutdown and disconnect the Antminer S1 when you do this rather than risk a pre-mature death for the sake of a few milli-BTC...
There was a temp drop of about 2-3 deg C after installation of these just on the ASICS.

Cheers