Radeon 5970 Overclocking: The VRM Temperature Bottleneck


In our Radeon HD 5970 review, we ran in to some issues when trying to overclock the card to 5870 speeds of 850MHz/1200MHz. At the time this is something we attributed to the VRMs, meanwhile AMD suggested that it was cooling related, and that we should manually increase the fan speed.
As it turns out, we were both right, we just didn’t have the tools at...


http://www.anandtech.com/weblog/showpost.aspx?i=657