2x7970 freeze windows and linux too

[hoze]

Hello to all.
I just upgraded my machine to 2x7970 .Both of them is Gigabyte, one is GHz edition and the 2nd one is standard. The problem is when I run some test etc my computer freeze. I try with standard clock,overclocked blablabla...same....

Maybe some help ?
BTW I use Catalyst 12.8 (in windows 7 64bit and in linux ubuntu 64bit too).

Try reducing your -n to see if it helps avoiding the crashes. Also, when does it crash? What was the command line and algorithm used? Other than that make sure that you have a good enough PSU for your 2 cards. For Windows, there is also a patch that could help:
http://hashcat.net/wiki/doku.php?id=timeout_patch

PSU for GHz edition I use chieftec 600w and for standard edit.use separetely PSU 550w. Patch allready in my registry ,.

comm.line and algo.: oclHashcat-plus64.exe -m 2500 -n 32 --gpu-loops 4096 -a 3 -1 abcdefghijklmnopqrstuv xxxxx.hccap ?l?l?l?l?l?l?l?l

Same command line as for single GPU.

Crash after this:

Hashes: 1 total, 1 unique salts, 1 unique digests
Bitmaps: 8 bits, 256 entries, 0x000000ff mask, 1024 bytes
Workload: 16 loops, 1 accel
Watchdog: Temperature abort trigger set to 90c
Watchdog: Temperature retain trigger set to 80c
Device #1: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #2: Tahiti, 2048MB, 1100Mhz, 32MCU
Device #1: Kernel g:\wpa2\oclHashcat-plus-0.12/kernels/4098/m2500.Tahiti_938.2_CAL 1.4.1741 (VM).kernel (1399164 bytes)
Device #2: Kernel g:\wpa2\oclHashcat-plus-0.12/kernels/4098/m2500.Tahiti_938.2_CAL 1.4.1741 (VM).kernel (1399164 bytes)

[s]tatus [p]ause [r]esume [b]ypass [q]uit =>




Now playing with -n command. with 1 not crash, but it's slow. with -n 8 crash...