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Author Topic: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH  (Read 449430 times)
QuintLeo
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August 03, 2015, 08:30:26 PM
Last edit: August 04, 2015, 08:12:23 AM by QuintLeo
 #4981

Nope, I'm not in the "August 14" batch 7. I might have been in the August 5 one though, which would make them "not late" yet.
 (Edit - just got a 'shipped' email with my tracking number, not that I was worried about getting them - just when.)


 Given my current sat Internet, I'd have to say that the "pull the PWM wire to set the fan to 100%" option was a VERY good thing for me - I've not had the fans kick out ever so far.

 I'm not worrying about if the fans kick out if I have a power outage, oddly enough. 9-)

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August 04, 2015, 12:48:37 AM
 #4982

Antpool is shrinking in last few days.  I wonder if next gen miners will be coming online soon.

net hashrate has been steadily increasing, so something new is coming online.


Antpool hashrate is back to what it was before, let's see if it continues upwards from here.
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August 06, 2015, 05:46:44 PM
 #4983

Just got my pair of the used S5s - one of them has STRAIGHT BLADE heatsinks in it, the other the usual curved.

 I wonder it Bitmain finally gave up on that curved sillyness....


 Both of them were pretty clean, the shipment packaging was a little marginal but it worked, a couple of the HS blades were bent up on the bottom but that's pretty common and easy to fix....

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August 06, 2015, 06:34:18 PM
 #4984

Just got my pair of the used S5s - one of them has STRAIGHT BLADE heatsinks in it, the other the usual curved.

 I wonder it Bitmain finally gave up on that curved sillyness....


 Both of them were pretty clean, the shipment packaging was a little marginal but it worked, a couple of the HS blades were bent up on the bottom but that's pretty common and easy to fix....


I see, they work well performance wise? I am supposed to received mine tomorrow. For some reason, having to pay import tax for UPS is an "unexpected issue" and that delayed it to tomorrow or something. Well whatever.

I might try your pull the pin trick to get 100% fan at all time, maybe not, the melting issue is supposed to have been fixed and there's manual user control fan firmware out now. I will of course test that and also cut its internet to see how it reacts.

If i can keep the fan speed dialed down just a bit and it doesnt wind down when it lose connection, i might go for it.
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August 06, 2015, 07:21:26 PM
 #4985

Just got my pair of the used S5s - one of them has STRAIGHT BLADE heatsinks in it, the other the usual curved.

 I wonder it Bitmain finally gave up on that curved sillyness....


 Both of them were pretty clean, the shipment packaging was a little marginal but it worked, a couple of the HS blades were bent up on the bottom but that's pretty common and easy to fix....


I see, they work well performance wise? I am supposed to received mine tomorrow. For some reason, having to pay import tax for UPS is an "unexpected issue" and that delayed it to tomorrow or something. Well whatever.

I might try your pull the pin trick to get 100% fan at all time, maybe not, the melting issue is supposed to have been fixed and there's manual user control fan firmware out now. I will of course test that and also cut its internet to see how it reacts.

If i can keep the fan speed dialed down just a bit and it doesnt wind down when it lose connection, i might go for it.

Same here, had to pay $33 of tax... go figure

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August 06, 2015, 08:54:46 PM
 #4986

Both  of these "used" S5s are running a bit odd - the "bottom of status screen" hash board runs 6-8 degrees cooler than the other of the same unit or than any of the other hash boards in ANY of my S5s when running at the same clock speed, the "top" board is kinda mid-range on temp compared to the boards in all my other S5s.
 Temps are running about the same on the S5 with the straight-blade heatsinks and the one with the older-style curved ones and they're both meeting specs easily though, once I got a couple configuration quibbles fixed (MY glitches, not theirs).


 I got a call from FEDEX the day after they shipped about some sort of customs issue, but they apparently resolved it before I noticed the call - by the time I noticed I HAD a voicemail about the issue asking me to call them back, tracking on their web site showed that the units were already in Indianapolis (I think they have a major hub there, for similar reasons to why UPS put THEIR primary air shipping hub at Weir Cook / Indianapolis International a couple decades back).

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August 06, 2015, 09:52:19 PM
 #4987

Both  of these "used" S5s are running a bit odd - the "bottom of status screen" hash board runs 6-8 degrees cooler than the other of the same unit or than any of the other hash boards in ANY of my S5s when running at the same clock speed, the "top" board is kinda mid-range on temp compared to the boards in all my other S5s.
 Temps are running about the same on the S5 with the straight-blade heatsinks and the one with the older-style curved ones and they're both meeting specs easily though, once I got a couple configuration quibbles fixed (MY glitches, not theirs).


 I got a call from FEDEX the day after they shipped about some sort of customs issue, but they apparently resolved it before I noticed the call - by the time I noticed I HAD a voicemail about the issue asking me to call them back, tracking on their web site showed that the units were already in Indianapolis (I think they have a major hub there, for similar reasons to why UPS put THEIR primary air shipping hub at Weir Cook / Indianapolis International a couple decades back).

Gotcha. Isint it normal for them to be 6~degree apart? I never found out why, maybe its the positing of the chips. (Since it basically just report the temp of itself, not necessarily the actual temp of the chips on the board) depending on where the chip is placed, the temp is more or less truly representative.

So you say the 2 new old units are odd. Do you mean more so than other S5's?
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August 06, 2015, 09:55:16 PM
 #4988


Gotcha. Isint it normal for them to be 6~degree apart? I never found out why, maybe its the positing of the chips. (Since it basically just report the temp of itself, not necessarily the actual temp of the chips on the board) depending on where the chip is placed, the temp is more or less truly representative.

So you say the 2 new old units are odd. Do you mean more so than other S5's?

Actually temp board are sometime different because of the temp sensor. The temp sensor is in the middle of the board and is not really accurate.
You can also repaste the thermal paste of the chip to drop the temp of the chip.
These chip are bottom heat so even if you but heatsink on top of it you will not see a big difference in temp.  Wink

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August 06, 2015, 10:44:16 PM
 #4989

I've got 3 that are usually 2-3 degrees apart, then the 2 new ones are more like 8 degrees apart. That seems a bit excessive.

 I might break down this weekend and try redoing thermal compound on the 2 boards that are reading way higher than the other 2 in the same machines.



 I DO wish they'd put temp sensors on the chips like Spondoolies did on the Rockerbox chips (SP20E etc.).

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August 06, 2015, 11:07:21 PM
 #4990

These chip are bottom heat so even if you but heatsink on top of it you will not see a big difference in temp.  Wink
Might have that the wrong way around - these are, or are at least claimed to be, flip chip type designs with most of the heat going out the top of the chip.  The S5 miner design has heat sinks on the top.  Maybe you were referring to board sides, though.

I'm also not convinced that cooling the other side is entirely fruitless - just not necessary - as some heat is going there as well (can't disobey the laws of physics).  The S5's layout does mean that if one were to put heat sinks there, they'd either have to be small, or would require spacers to get the clearance above the taller passives.  My Compac's running a wee bit cooler with its shiny new heatsink on that side - but unlikely to be worth the bother on a large board vs getting better airflow.

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August 07, 2015, 07:50:55 AM
 #4991

On the S5, you need the cooling air flowing across the back to cool the parts that are on the back side of the circuit board.

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August 07, 2015, 09:18:10 AM
 #4992

S5+

432 chips, 7722GH/s, 3436 Wt








Have anyone heard about it?

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August 07, 2015, 09:28:57 AM
 #4993

Good lord, definitely not targeting the hobby miner with that beast - where did you find it out about it?  At 240v that thing is going to be pulling down almost 15 amps, plus even those beast 2880w IBM server PSU aren't enough to power this... Power consumption is slightly better, 0.44w/GH instead of 0.51w/GH of the S5, but I that has to be a prototype case setup - I would imagine this is going into a rack mount case of some sort - but you never know with Bitmain!  Wink  It looks like they've got push and pull fans on it - and this also matches that the latest S5 firmware lists 6 fans on it's display....  I wonder what it's going to cost?
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August 07, 2015, 09:32:55 AM
 #4994

Agree, getting a PSU for that is going to be tricky (and I would not want to rely on bitmain made PSU's ...). And the fans look less than the "standard" 38mm's ... so maybe being targeted at hobby miners ... but then any peace and quiet will certainly be shattered by the PSU fans ... Oh well.

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August 07, 2015, 09:38:13 AM
 #4995

Going by bitmain standards, if that thing is published, it will cost around 11 Bitcoins.

Also, powering isn't a problem, remember you can always chain server PSUs Wink

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August 07, 2015, 09:45:17 AM
 #4996

Finally a new kid on "the public block".

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August 07, 2015, 09:49:20 AM
 #4997

Good lord, definitely not targeting the hobby miner with that beast - where did you find it out about it?

Somehow our merchant adv shared this information before I found it here, on Bitcointalk...

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August 07, 2015, 10:52:28 AM
Last edit: August 07, 2015, 11:56:13 AM by RichBC
 #4998

Wow that is a beast... Yes the server PSU's are perfect as they are designed to be connected in parallel and load share well. I hope they ship them with ear defenders.  Smiley

Seeing the construction makes you wonder if they will release a single unit with 3 PCB, would still be an impressive 2574GH

Rich

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August 07, 2015, 11:59:12 AM
 #4999

S5+
432 chips, 7722GH/s, 3436 Wt !!!
I'm with RichBC. I'd be interested in a single 3 PCB unit running on 120V.
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August 07, 2015, 12:10:53 PM
 #5000

So looking at the board layout & doing a bit of maths. It looks like they have changed the chain layout of the S5 which was.

A string of 15 Chip Pairs / board, total 30 chips. Giving  577 GH / Board @ a calculated 0.8V Core Voltage (Actual Core voltage will be a bit less than this) GH/chip 19.25


And the S5+ which has

A string of 16 Chip Triples / board, total 48 chips. Giving  858 GH / Board @ a calculated 0.75V Core Voltage. GH/chip 17.875

So they have dropped the core voltage and GH/ Chip slightly.


Rich

→→→→→→→→→→→→→→→→→→ 💰 Hard-Disk Mineable Cryptocurrency !! B U R S T C O I N 💰 Cheap Price & Easy to Invest - CHECK IT OUT NOW! !! →→→→→→→→→→→→→→→→→→ 💰 Asset exchange, Automatic transactions, Escrow system & More !!
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