I purchased some copper heatsinks (better than Aluminum ones as copper transfer more heat).

However, when I attached them one by one carefully onto my AMD Radeon 6700 Graphic card, there was a sparks of flash and my screen went black.

The HPZ800 can reboot – which still works showing some basic text on BIOS – however, the windows also went dark. I guess some units were short-circuit-ed and thus damaged.

Lessons learned: I should really do this when server is turned off. And also avoid directly attaching the copper heatsinks on the board – as it might burn the board because the copper is Conductive. You might want to attach the heatsink on the chips (CPU).

I then have to replace this graphic card with Nvida Qudra 2000 and re-attach the copper heatsinks on to the motherboard of HPZ800 server. The Nvida Qudra 2000 GPU card is not that hot – on normal temperature range of 50 to 70 degree.

–EOF (The Ultimate Computing & Technology Blog) —

推荐阅读：
永州韦使君新堂记原文及翻译　 捕蛇者说原文及翻译　 报孙会宗书原文及翻译　 尚德缓刑书原文及翻译　 上书谏猎原文及翻译　 狱中上梁王书原文及翻译　 论贵粟疏原文及翻译　 治安策原文及翻译　 过秦论原文及翻译　 武帝求茂才异等诏原文及翻译