You could take a Corsair H110 and replace the fans with San Ace 140mmx38mm. That's like 120 bucks in fans though. So maybe 250 bucks for that cooling solution.
The H100i uses dual 120mm fans. The San Ace replacements in that size... for about 30 bucks per you can get 224 CFM (compared to 77 CFM on the stock fans). So 200 all in?
Maybe the single fan solution with the H80i will be more than enough though. Maybe 150 bucks?
Topic: The Habanero - 650GH/s - OOS - page 47. (Read 96043 times)
So options: 1) VMC can't follow the blueprints for the evo board, 2) There is a high % of boards that is limited in his speed in the VMC process or 3) the evo board itself sucks.
I must admit that I'm undecided.
I must admit that I'm undecided.
Personally I think it's impractical for anyone but the most hardcore tech-head to be able to remove the amount of heat coming from these chips. I defo believe the peppermining board is a better design and their software will allow folks to get a lot more out of the chips, but IMHO the price is a little steep relatively speaking considering the plausible additional hashrate average joe could achieve.
That said, from the specs I've seen posted by MrTeal and Gateway I get the feeling the w/gh will be better from the habanero, although $250 worth of improvement? I'm not sure....
Any reason to not just go all out and use the H110?
"going all out" is relative. Instead of using some closed loop system, why not make your own? I honestly think a 2x120mm radiator (let alone 1x120mm) is far too small for such a huge load such as the hashfast chip (600W or more). The included fans likely don't have very good air pressure either.
I hope that everyone posts up cool photos of their franken-cooling systems on these boards! That will be cool to see!
You can always go for the bigger radiator and fan upgrade, you should be able to reach even more cooling capacity.
(Fan upgrade shoud be mandatory as "silent" fans are built into these)
(Fan upgrade shoud be mandatory as "silent" fans are built into these)
I wonder about the cost. The boards are already 1100 alone. Tack on PSU and expensive cooling and things start getting iffy. Its fun... but I do want it to at least pay for itself.
You can always go for the bigger radiator and fan upgrade, you should be able to reach even more cooling capacity.
(Fan upgrade shoud be mandatory as "silent" fans are built into these)
(Fan upgrade shoud be mandatory as "silent" fans are built into these)
Any reason to not just go all out and use the H110?
"going all out" is relative. Instead of using some closed loop system, why not make your own? I honestly think a 2x120mm radiator (let alone 1x120mm) is far too small for such a huge load such as the hashfast chip (600W or more). The included fans likely don't have very good air pressure either.
Any reason to not just go all out and use the H110?
Now we need to know which PSU and cooler to purchase.
Nexus99,
I'm going with a Corsair H100 for cooling (found at newegg or whichever getting place you use). For PSU I'm using Dell Z750P units (http://www.ebay.com/itm/OEM-Dell-PowerEdge-2950-Z750P-00-RX833-0RX833-7001072-Y000-Server-Power-Supply-/251533148025?pt=PCA_UPS&hash=item3a908b3f79) coupled with a gekkoscience Dell PSU breakout board (i.e. sidehack's breakout board http://www.gekkoscience.com/products/D750_supply_breakout_board.html). Right now I have a couple of those pulling between 920W and 950W at the wall. From that you can tell that over committing the PSU is WAY possible *without* much chance of the magic smoke coming out. On another note, does anyone know if the HashFast Minepeon image work as the miner for these boards? Hope this helps.
H@shKraker
Go with the h100i rather than the h100 - better pump and apparently cools much better.
For thermal paste I highly recommend going with a 100% metal option, like Coollaboratories Liquid Ultra
Power supply I'd suggest 950w+
Now we need to know which PSU and cooler to purchase.
Nexus99,
I'm going with a Corsair H100 for cooling (found at newegg or whichever getting place you use). For PSU I'm using Dell Z750P units (http://www.ebay.com/itm/OEM-Dell-PowerEdge-2950-Z750P-00-RX833-0RX833-7001072-Y000-Server-Power-Supply-/251533148025?pt=PCA_UPS&hash=item3a908b3f79) coupled with a gekkoscience Dell PSU breakout board (i.e. sidehack's breakout board http://www.gekkoscience.com/products/D750_supply_breakout_board.html). Right now I have a couple of those pulling between 920W and 950W at the wall. From that you can tell that over committing the PSU is WAY possible *without* much chance of the magic smoke coming out. On another note, does anyone know if the HashFast Minepeon image work as the miner for these boards? Hope this helps.
H@shKraker
So options: 1) VMC can't follow the blueprints for the evo board, 2) There is a high % of boards that is limited in his speed in the VMC process or 3) the evo board itself sucks.
I must admit that I'm undecided.
I must admit that I'm undecided.
Personally I think it's impractical for anyone but the most hardcore tech-head to be able to remove the amount of heat coming from these chips. I defo believe the peppermining board is a better design and their software will allow folks to get a lot more out of the chips, but IMHO the price is a little steep relatively speaking considering the plausible additional hashrate average joe could achieve.
That said, from the specs I've seen posted by MrTeal and Gateway I get the feeling the w/gh will be better from the habanero, although $250 worth of improvement? I'm not sure....
So options: 1) VMC can't follow the blueprints for the evo board, 2) There is a high % of boards that is limited in his speed in the VMC process or 3) the evo board itself sucks.
I must admit that I'm undecided.
I must admit that I'm undecided.
Nice one - I've got two of the VMC produced boards - one I can't push past 850mhz, and the other I can't push past 825mhz - Both sit around 90-92 degrees C.
What version? The "512GH" one, right?No, the "750gh/s" ones... although I wouldn't bank on more than 650gh/s
I've done a video on it which should be up on http://youtube.com/cryptocurrency in about 24 hours (go and subscribe :-) - there's already a video of the 512gh/s card (which clocked more like 520+gh/s)
Nice one - I've got two of the VMC produced boards - one I can't push past 850mhz, and the other I can't push past 825mhz - Both sit around 90-92 degrees C.
What version? The "512GH" one, right?
Now we need to know which PSU and cooler to purchase.
Right now they boards are programmed and tested at 875MHz which will correspond to a little better than 650GH/s.
Nice one - I've got two of the VMC produced boards - one I can't push past 850mhz, and the other I can't push past 825mhz - Both sit around 90-92 degrees C.
Looks like PepperMining is producing a very nice board here. Although I think like all HF based boards removing the heat is going to be the challenge. I think your tool is going to be a major major advantage for tweaking these boards.
Nice work. I might just have to order one.
Hey everyone,
I got back home today after being down for the first part of the build, and I'm extremely tired after a few long days and an hour of sleep last night so this update will be short.
At this point, boards are rolling off the line and making their way through program and test. The majority of the orders place through the website should be able to ship here shortly, so you should start seeing boards in the wild early next week. Right now they boards are programmed and tested at 875MHz which will correspond to a little better than 650GH/s. Like the other HF based devices there's no provision right now for changing the voltage through cgminer, but we will be putting out a tool in order to allow users to change the voltage (to each die individually, if you really want to tweak) which will allow really pushing the boards, or scaling back clocks and volts in the summer to reduce heat load.
More substance and pictures tomorrow.
I got back home today after being down for the first part of the build, and I'm extremely tired after a few long days and an hour of sleep last night so this update will be short.
At this point, boards are rolling off the line and making their way through program and test. The majority of the orders place through the website should be able to ship here shortly, so you should start seeing boards in the wild early next week. Right now they boards are programmed and tested at 875MHz which will correspond to a little better than 650GH/s. Like the other HF based devices there's no provision right now for changing the voltage through cgminer, but we will be putting out a tool in order to allow users to change the voltage (to each die individually, if you really want to tweak) which will allow really pushing the boards, or scaling back clocks and volts in the summer to reduce heat load.
More substance and pictures tomorrow.
That is interesting, there wasn't any reference to an included one on the VNC webpage.
The difference is that is cut out of a piece of plate and you use a pad to allow it to be pressed against the capacitors, with the majority of the force pushing down on those delicate ceramic caps (unless they've changed it recently).
https://www.dropbox.com/s/vddqqeyg0fx5kfr/heat%20sink%20back%20plate%20pic.htm
With our design, it is much larger (almost a full 120mm square) and is in contact with the board itself to help dissipate heat from the board. That's done by milling out pockets under the ASIC to allow the decoupling caps to sit in. This also puts the stress of the mounting pressure on the board instead of on the relatively fragile ceramic caps. The backplate itself is screwed to the board using 6-32 screws with a 105mm hole spacing, so you can mount a standoff and easily install a 120mm fan blowing on the bottom side if you don't have them in case with airflow around it.
The difference is that is cut out of a piece of plate and you use a pad to allow it to be pressed against the capacitors, with the majority of the force pushing down on those delicate ceramic caps (unless they've changed it recently).
https://www.dropbox.com/s/vddqqeyg0fx5kfr/heat%20sink%20back%20plate%20pic.htm
With our design, it is much larger (almost a full 120mm square) and is in contact with the board itself to help dissipate heat from the board. That's done by milling out pockets under the ASIC to allow the decoupling caps to sit in. This also puts the stress of the mounting pressure on the board instead of on the relatively fragile ceramic caps. The backplate itself is screwed to the board using 6-32 screws with a 105mm hole spacing, so you can mount a standoff and easily install a 120mm fan blowing on the bottom side if you don't have them in case with airflow around it.
Sorry if I missed that, what are the physical dimensions of the Habanero boards?
5.5"x11" That is interesting, there wasn't any reference to an included one on the VNC webpage.
The difference is that is cut out of a piece of plate and you use a pad to allow it to be pressed against the capacitors, with the majority of the force pushing down on those delicate ceramic caps (unless they've changed it recently).
https://www.dropbox.com/s/vddqqeyg0fx5kfr/heat%20sink%20back%20plate%20pic.htm
With our design, it is much larger (almost a full 120mm square) and is in contact with the board itself to help dissipate heat from the board. That's done by milling out pockets under the ASIC to allow the decoupling caps to sit in. This also puts the stress of the mounting pressure on the board instead of on the relatively fragile ceramic caps. The backplate itself is screwed to the board using 6-32 screws with a 105mm hole spacing, so you can mount a standoff and easily install a 120mm fan blowing on the bottom side if you don't have them in case with airflow around it.
The difference is that is cut out of a piece of plate and you use a pad to allow it to be pressed against the capacitors, with the majority of the force pushing down on those delicate ceramic caps (unless they've changed it recently).
https://www.dropbox.com/s/vddqqeyg0fx5kfr/heat%20sink%20back%20plate%20pic.htm
With our design, it is much larger (almost a full 120mm square) and is in contact with the board itself to help dissipate heat from the board. That's done by milling out pockets under the ASIC to allow the decoupling caps to sit in. This also puts the stress of the mounting pressure on the board instead of on the relatively fragile ceramic caps. The backplate itself is screwed to the board using 6-32 screws with a 105mm hole spacing, so you can mount a standoff and easily install a 120mm fan blowing on the bottom side if you don't have them in case with airflow around it.
Sorry if I missed that, what are the physical dimensions of the Habanero boards?
Yeah those resistors dissipate 5W apiece at 82A draw, so they can get up over 200C in still air... remember P=I^2R so at max rated 63A on the supply, it's 3W apiece. 950W at the wall, what's the output voltage and the voltage reading on the CUR pin? That'll tell you the actual power output. It's probably around 850W, which is pretty awesome.
I've been doing some load testing this week, and drew about 26A through one of our stock 16AWG cables with zero problems. The website looks like it recommends at least 24A handling per 6-pin connector? which our cables should be able to do.
Don't want to look like we're hijacking the thread to advertise other stuff, sorry. My attention was brought to Habaneros because of a potential customer, but these boards look pretty interesting. If I get any dollars ahead I might pick one up to play with.
I've been doing some load testing this week, and drew about 26A through one of our stock 16AWG cables with zero problems. The website looks like it recommends at least 24A handling per 6-pin connector? which our cables should be able to do.
Don't want to look like we're hijacking the thread to advertise other stuff, sorry. My attention was brought to Habaneros because of a potential customer, but these boards look pretty interesting. If I get any dollars ahead I might pick one up to play with.
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