Overclocking - Hitting The Limit At 2.70 GHz, Continued
Once you have achieved a stable clock speed at the default voltage when overclocking the Phenom processor, even a voltage tweak won't help much. The best you can hope for is to squeeze out a little more performance. Considering the jump in power consumption, as well as the associated increase in thermal dissipation, this minor performance increase is usually not worthwhile. At least, that was our experience with our review sample.
The Prime95 torture test was stable at 2.70 GHz.
At a CPU frequency of 2.70 GHz, the memory runs slightly faster than at 2.60 GHz.
|Phenom Memory Dividers
With the Phenom 9600 Black Edition running at 2.70 GHz, the RAM operates at DDR2-771.
|Phenom 9600 Black Edition @ 2.70 GHz
|2.70 GHz (+ 17.39%)
|200 MHz / 1800 MHz
|1.400 V (+ 0.150 V)
|DDR2-771 (385 MHz)
Our Phenom 9600 Black Edition possesses an overclocking potential of 17.4%.
Current page: Overclocking - Hitting The Limit At 2.70 GHz, ContinuedPrev Page Overclocking - Hitting The Limit At 2.70 GHz Next Page Only 12.5% More Performance
Stay on the Cutting Edge
Join the experts who read Tom's Hardware for the inside track on enthusiast PC tech news — and have for over 25 years. We'll send breaking news and in-depth reviews of CPUs, GPUs, AI, maker hardware and more straight to your inbox.
I think on page 14 the author meant:Reply
"When Cool'n'Quiet is deactivated, idle power consumption rises to 51 watts. The jump in power consumption at 2.70 GHz is a direct result of the core voltage increase from 1.250 V to 1.400 V."
And the bars for Phenom 9600 BE and Phenom 9600 BE (CnC) should be switched around.
I think it's also important to mention the fact that Vista SP1 includes it's OWN TLB fix which overrides the bios setting of many boards. I used an app that works in conjunction with Crystal CPUID to change the MSR directly to deactivate this secondary TLB fix. It caused a dramatic improvement in performance; the quick and simple WinRAR bench went from 232 to ~1300 after the fix. Just think it's worth mentioning!Reply
I think I may have found a new problem with this bug. I have a Phenom X4 9600, and have tried two different motherboards. The problem occurs when running Windows 7. BSOD with a message stating that the operating system did not receive an clock interupt signal from the second processor. At first I thought it was a bios problem, but have since had to replace the motherboard. Tried Windows 7 again after replacing the motherboard and still having the same problem.Reply