DRILLBIT SYSTEM Miners - Avalon range available - Now $104.99!

[Goldshredder]

So if we go for the 12v, the connectors on the boards will remain 4 pin molex, but the connectors on the miniplanes and doubles scrolls will change to 6 pin molex. On the miniplane, probably only one will be required, but we may put 2 on just to make sure you'll get enough power. The double scroll will have 2 for sure. This means for all you ex GPU mine heads, your giant PSU will potentially be able to run four double scrolls.

12v sounds good, from what I've heard. I assume that a computer PSU of reasonably modern origins is what most people have been planning for their Drilling Rig©.

And just for the sake of it, here is a picture of my old GPU rig. R.I.P

The classic 970 Extreme4, the motherboard of the future's recent past. Long may it lived.

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[Goldshredder]

For the coders:  

Thanks Barntech    

So,no 5 volt needed at all,if you go with 12 volt,so I can make 4 pin molex's with or without 5 volt leads.More confusion,I know  

This you say, with bonus lack of question mark:

[Barntech]

Basically you will plug it in and it will take the power that it needs.

[rob143]

It is actually easy enough to buy some extension cables and set them up for 12v or 5v. I am betting that most computer geeks have at least 2 or 3 ATX PSU just lying around making. I would like to get the boards in my grubby little hands and then when the Drillbit team asks us what we would like or not in their future boards we could get that sorted out before they go to assembly.

[Its About Sharing]

Barntech (and others),

First great news, close to the decision on the PS. Maybe we can order later today and set up the Mining Shrine.

Question - Are the 6 pin Molex common connectors on modern Power Supplies? (Do they go by a different name?) As I can't seem to find many.

Looking at PS's I am not seeing the name "6 pin Molex". (And I'm hardly seeing 6 pin connectors, but on a few)

For example:
-Only 2 of the 7 low watt (300w - 500w) "Be Quiet" models have PCIE 6 pin connectors and just 1 at that (I think that is Molex as it is the only 6 pin listed.)
-I see no 6 pin on the cooler master series (see 6+2)
-EVGA 500 - I see only the 6+2 listed
-400 Watt Super Flower Golden Green - 1 x 6 pin PCI Express power (I think this is it).
-Corsair RM 450 - No 6 pin listed
-Corsair CX 430 - No 6 pin listed (both of these Corsairs list 6+2)
-Seasonic SSR 360 - 1x 6pin PCI-Express Connector

So, if 6 pin connectors are not as common on newer power supplies, be selective with which you buy. (Excuse me if I'm wrong here, just checking and don't understand all the terminology but imagine others are in the same situation.)

Can these 6 pin connectors be had via an adapter to an (e.g. 6+2 pin?, etc.)

Thanks,
IA

edit - From what I have read, I think you can use an adapter to go from 6+2 PCI-E to 6 PCI-E. Can someone confirm that?

[Unacceptable]

For the coders:  

Thanks Barntech    

So,no 5 volt needed at all,if you go with 12 volt,so I can make 4 pin molex's with or without 5 volt leads.More confusion,I know  

This you say, with bonus lack of question mark:

The only reason I asked is because the 4 pin molex has both 12 & 5 volt in the same connector  

Just trying to be sure I don't fry my boards or underpower them

I gotta alot of "cleanup" to do but,heres my Klondikes rockin @ 5.5GH x 6,on my homemade cables.1 more above & 1 more below  

[balanghai]

The 21.7 is a good deal but the 2.7 thumbs are a bit overpriced.

[flemeister]

Hey,

So if we go for the 12v, the connectors on the boards will remain 4 pin molex, but the connectors on the miniplanes and doubles scrolls will change to 6 pin molex. On the miniplane, probably only one will be required, but we may put 2 on just to make sure you'll get enough power. The double scroll will have 2 for sure. This means for all you ex GPU mine heads, your giant PSU will potentially be able to run four double scrolls.

That would be a good idea to include 2x 6-pin, as they're rated for 75W each, so 150W total. We'll have the option of using molex-to-6-pin adapters if needed.

They're called 6-pin PCI-e by the way, to avoid any confusion.

IMO good decision to use 12V instead of 5V, as the 3.3/5V rails on modern ATX power supplies are mostly an afterthought compared to the main 12V rail/s. Less efficient, and on certain models with group regulated designs, prone to go out of spec when put under a meaningful load: http://www.techpowerup.com/reviews/Antec/HCG-520/5.html

EDIT: 1x 6-pin PCI-e plus 1x molex would be another possible config, if it's practical to do. Every ATX PSU worth its salt has at least one of each of these connectors, so no adapters required.

[Goldshredder]

Basically you will plug it in and it will take the power that it needs.

That sounds highly compatible with my preferences re: power/voltage.

[ank0l0g]

So when the board would get the users? What's on delivery times?

[Barntech]

Ok. Sorry for the confusion. It is this connector. Pretty sure they are standard with most power supplies.

http://pcsupport.about.com/od/insidethepc/a/atx-pinout-6-pin-12v-psu.htm

IAS, i believe the 6 + 2 you were talking about is just one of these; can be 6 or 8 by just including the 2 or not:

[Barntech]

On other news, I just visited one of our mad scientists in his lab. The photos speak for themselves. 







This board only has 7 chips on (for reasons not worth going into), which means we're currently getting 2.24 per chip on the 8 board. Not bad. This is without proper cooling and various other tweaking on clock, voltage etc still to come, so we're looking good. 

[jelin1984]

Hehe nice


Check inbox

[southerngentuk]

This is what we've been waiting for.      

Please don't eat them all.  

edit : nice to see the Rpi in there 

[Barntech]

Yes!

This is all running on a rasp pi by the way for all you pi heads.

[monkeynutts]

feed the poor guy, !

can i see scorch marks around one of the chips on the boards ? mabye its just a bad shot.

[Its About Sharing]

On other news, I just visited one of our mad scientists in his lab. The photos speak for themselves. 







This board only has 7 chips on (for reasons not worth going into), which means we're currently getting 2.24 per chip on the 8 board. Not bad. This is without proper cooling and various other tweaking on clock, voltage etc still to come, so we're looking good. 

Wow! That is great Barntech (and great news about the 6+2 PCI-E connector - all PS's have that  or the 6 if older. Tons of choices out there).

You are getting just under 18 Ghash/s per board (if you had 8 chips). That is nice and such a huge jump from last week. Not really overclocking them much yet either. Good luck finding that perfect setting.

So small, I really thought they would be larger. (I can always put the mini in a larger computer case with a noise generator and blinking lights to get that effect though, just for when company is over of course!   )

Thanks for the pics, nice to see. So exciting to be this close. Congrats.

Waiting for the go on 12V and I will order my Cooler Master V450S at 92% efficiency. (We need that with the rates here in Germany nearing .28 kwh)


Its about sharing

ps - CGMiner or BFGMiner on the Pi?

[stringer]

Barntech (and others),

First great news, close to the decision on the PS. Maybe we can order later today and set up the Mining Shrine.

Question - Are the 6 pin Molex common connectors on modern Power Supplies? (Do they go by a different name?) As I can't seem to find many.

Looking at PS's I am not seeing the name "6 pin Molex". (And I'm hardly seeing 6 pin connectors, but on a few)

For example:
-Only 2 of the 7 low watt (300w - 500w) "Be Quiet" models have PCIE 6 pin connectors and just 1 at that (I think that is Molex as it is the only 6 pin listed.)
-I see no 6 pin on the cooler master series (see 6+2)
-EVGA 500 - I see only the 6+2 listed
-400 Watt Super Flower Golden Green - 1 x 6 pin PCI Express power (I think this is it).
-Corsair RM 450 - No 6 pin listed
-Corsair CX 430 - No 6 pin listed (both of these Corsairs list 6+2)
-Seasonic SSR 360 - 1x 6pin PCI-Express Connector

So, if 6 pin connectors are not as common on newer power supplies, be selective with which you buy. (Excuse me if I'm wrong here, just checking and don't understand all the terminology but imagine others are in the same situation.)

Can these 6 pin connectors be had via an adapter to an (e.g. 6+2 pin?, etc.)

Thanks,
IA

edit - From what I have read, I think you can use an adapter to go from 6+2 PCI-E to 6 PCI-E. Can someone confirm that?

The 6 pin molex hes referring to are PCI-E adapters. Most PSU's will have these connectors now, some will have 2, some 4 or more..

The 6+2 are simply an 8pin PCI-E adapter, where the 2 extra pins can be unclipped from the other 6 pins (as you see in the pic that Barn posted), similar to when ATX adapters went from 20 pins to 24pins..

[stringer]

On other news, I just visited one of our mad scientists in his lab. The photos speak for themselves. 

http://drillbitsystem.com/images/IMG_3978%20(Small).JPG http://drillbitsystem.com/images/IMG_3979%20(Small).JPG

http://drillbitsystem.com/images/IMG_3987%20(Small).JPG http://drillbitsystem.com/images/IMG_3992%20(Small).JPG

http://drillbitsystem.com/images/IMG_3985%20(Small).JPG http://drillbitsystem.com/images/IMG_3995%20(Small).JPG

This board only has 7 chips on (for reasons not worth going into), which means we're currently getting 2.24 per chip on the 8 board. Not bad. This is without proper cooling and various other tweaking on clock, voltage etc still to come, so we're looking good. 

Wow! That is great Barntech (and great news about the 6+2 PCI-E connector - all PS's have that  or the 6 if older. Tons of choices out there).

You are getting just under 18 Ghash/s per board (if you had 8 chips). That is nice and such a huge jump from last week. Not really overclocking them much yet either. Good luck finding that perfect setting.

So small, I really thought they would be larger. (I can always put the mini in a larger computer case with a noise generator and blinking lights to get that effect though, just for when company is over of course!   )

Thanks for the pics, nice to see. So exciting to be this close. Congrats.

Waiting for the go on 12V and I will order my Cooler Master V450S at 92% efficiency. (We need that with the rates here in Germany nearing .28 kwh)


Its about sharing

ps - CGMiner or BFGMiner on the Pi?

Screenshot shows cgminer 3.6.4 on the Pi

[flemeister]

So small, I really thought they would be larger. (I can always put the mini in a larger computer case with a noise generator and blinking lights to get that effect though, just for when company is over of course!   )

Indeed they're tiny. And now that they take 6-pin PCI-e for the miniplane, we have the option of using them seamlessly with a desktop PC if desired. Add them to the 5.25" bays of your fileserver/HTPC etc. if that's more efficient than using a separate computer. Or still hook them up to a laptop or rpi and do the paperclip trick to turn on the ATX PSU.

Waiting for the go on 12V and I will order my Cooler Master V450S at 92% efficiency. (We need that with the rates here in Germany nearing .28 kwh)

Very nice.

I've dug up three suitable PSU's lying around (typical nerd )

• Antec CP-850 (82~83% efficient at ~100W load @ 120V, so most likely 84~85% efficient at 240V. Not bad for such a high wattage unit)
  
• Antec HCG-520 (~85% efficient @ ~100W load @ 220V)
  
• Seasonic S12II 520W (same as above)

Already on hand and efficient enough.

This is for 4x boards on 1x miniplane (so ~120W from the wall) and a Dell Mini 9 (~6W from the wall) to run it. Looking to use Win 7 32-bit on its 16GB SSD (using RT Seven Lite to slim it down a bit).