Overclocking
OverclockingOverclocking tests were conducted by dropping the CPU's multiplier to 8x, dropping RAM frequency to 133MHz, HTT to 3x, and raising chipset voltage to 1.7v. It was then a case of increasing the external clock speed until instability set in. nForce4 SLI boards, in the past, have hit 300MHz HTT without too much difficulty.
That proved no problem to the 9NPA+ SLI. In fact, 314MHz was the highest HTT clock at which total stability could be guaranteed. That's above average, especially considering the 30c ambient temperatures during testing. In order to gauge just how well it performed at 300MHz HTT it was compared to a similarly clocked ABIT Fat. AN8 SLI. Note that a single ATI RADEON X850 XT PE card was used.
Remember that system memory is still running at DDR400 here. Both nForce4 SLI boards produce a touch better performance.
Running 3DMark2001 SE also shows both boards to benchmark similarly when run at 300MHz HTT. 28372 marks is pretty handy.
