What is a good program to stress test Hypertransport overclocks?

[PingSpike]

Is prime95 and the like really the best for this...it seems like the tests probably don't have a ton to do with the hypertransport bus.

Any suggestions?

 

[furballi]

Run Prime95 in all three modes. This will test the stability of your HT.

 

[AnandThenMan]

Prime95 works great for this. But you should not attempt HT overclocks, because even a modest overclock will cause instability and crashing. (the latest ATI chipsets don't seem to have this problem)

I'm running HT @ 1054 (2108), another 50 mhz and I get prime errors in about 3 minutes.

 

[StrangerGuy]

Why would anyone want a HTT overclock? Isn't it completely pointless?

 

[PingSpike]

Its not completely, just almost completely. My main problem is that setting 2x on the LDT/HT multiplier causes my overclock settings to not take on the chaintech vnf3-250 I have. After a long post, it informs me that its running at stock settings and to reset the cpu. Its bizarre.

This left me in a bad spot because I was trying to test the upper limit of the cpu overclock, which already had hypertransport running at 870 (prime everything was fine) And since I couldn't drop to 2x, I couldn't isolate the cpu as the culprit. I wasn't sure if it even was the cpu...since prime had been giving me no errors, but after bumping the cpu clock up another 5mhz it started to hard lock the computer while doing small FFTs. I would have thought I would get errors before hard locks. Increasing chipset voltage didn't seem to alieviate the problem.

In the end I just tightened the ram timings and settled for 193 ram and 2328 on my sempron 2800+. No big deal.

 

[RichUK]

nm

 

[TheRyuu]

There is no point to Overclock the Hypertransport. You can basically run the Hypertransport at 500mhz and it would perform the same as if it was at 1000mhz.