OCCTมันสุดโหดครับ ได้ข่าวมาว่าพวกการ์ดATI HD4800 ทั้งหลายไม่ต้องเอามาเทสต์เลยครับ เดิมๆก็เทสต์ไม่ผ่านครับ
การ์ดออกแบบมาได้เทพจริงๆครับ อิอิกำ
http://www.xtremesystems.org/forums/showthread.php?t=224958Problem has been confirmed by professionnal testing done by french websites in their labs. (I'll let you use google translation to understand what's going on).
http://www.canardpc.com/news-36049-g...et_4890__.htmlhttp://www.pcinpact.com/actu/news_multi/51011.htmit is *NOT* related to Temperature, but to a weakness in the Power Supply stages of the Reference design HD4870/4890 cards from AMD. We don't know yet if it is the VRM themselves, or the OCP that triggers.
The problems occurs with OCCT GPU:3D test at stock frequencies. You can also make it appear with Furmark, renamed exe to bypass ATI/AMD limitations, by bumping the vGPU a little (Furmark is a tad less effective than GPU:3D on those cards, that's why).
It seems the problem occurs when you reach around 82A/83A on the VRMA on those cards. Use RivaTuner with the appropriate plugins for Monitoring.