10-29-2013, 11:47 PM
My company was able to get a Tyan FT77AB7059 case (not the older B7015F77V4R), but I am having problems getting it to run with 4 7990's.
First, it is unable to post with all four 7990's installed. The fans spin up, then down, and it just sits there. When I take out any one card, it boots fine. I looked at every power-related setting in the BIOS but was unable to find anything that looked like it might be useful.
Next, after getting the box to boot and installing everything according to the wiki with only 3 7990's installed, I am able to successfully run oclHashcat-plus with the following command:
./oclHashcat-plus64.bin -m0 example0.hash -a 3 ?a?a?a?a?a?a?a?a -d1
Hashcat sees all six GPUs and only uses the first one just fine. When I run it with -d1,2 Hashcat starts and gets to the status prompt and then the screen goes black and I have to reboot. If I run it with -d1,3,5 then Hashcat works as expected.
Essentially, I am able to run any single GPU (within each dual-GPU card) without a problem, like -d2 or -d6. I am able to do any combination of one GPU per card, like -d1,3,6 or -d2,3,5. However, if I do -d3,4 or -d5,6, then Hashcat gets to the status prompt and immediately throws a temperature override error (even though the card is cool and just started) and the terminal window becomes unresponsive. When I open the case, the GPU that I used had been spun down.
I have the box hooked up to a dedicated 220 volt / 30 amp circuit with nothing else on it, so the box has plenty of power. I noticed that the motherboard does have an over current protection (OCP) that kicks in when any GPU is over 300W TDP (page 152 in the manual), but that does not seem to be limitation of the older Tyan model. Any ideas?
Thanks for any pointers.
First, it is unable to post with all four 7990's installed. The fans spin up, then down, and it just sits there. When I take out any one card, it boots fine. I looked at every power-related setting in the BIOS but was unable to find anything that looked like it might be useful.
Next, after getting the box to boot and installing everything according to the wiki with only 3 7990's installed, I am able to successfully run oclHashcat-plus with the following command:
./oclHashcat-plus64.bin -m0 example0.hash -a 3 ?a?a?a?a?a?a?a?a -d1
Hashcat sees all six GPUs and only uses the first one just fine. When I run it with -d1,2 Hashcat starts and gets to the status prompt and then the screen goes black and I have to reboot. If I run it with -d1,3,5 then Hashcat works as expected.
Essentially, I am able to run any single GPU (within each dual-GPU card) without a problem, like -d2 or -d6. I am able to do any combination of one GPU per card, like -d1,3,6 or -d2,3,5. However, if I do -d3,4 or -d5,6, then Hashcat gets to the status prompt and immediately throws a temperature override error (even though the card is cool and just started) and the terminal window becomes unresponsive. When I open the case, the GPU that I used had been spun down.
I have the box hooked up to a dedicated 220 volt / 30 amp circuit with nothing else on it, so the box has plenty of power. I noticed that the motherboard does have an over current protection (OCP) that kicks in when any GPU is over 300W TDP (page 152 in the manual), but that does not seem to be limitation of the older Tyan model. Any ideas?
Thanks for any pointers.