Rating R6600 B3 boosted to 3.2 but slows down at full capacity
Rating R6600 B3 boosted to 3.2 but slows down at full capacity
Hello everyone, I have a Q6600 Revision B3 that I overclocked to 3.2ghz. When I begin a stress test to check stability, it works fine. However, if I reach a temperature of 65°C on the CPU, the speed drops from 3.2 to 2.4 and remains at that level for about 1-2 minutes before returning to 3.2 again after another 2 minutes. The TJMax temperatures are around 85°C.
My setup includes:
Q6600 B3 2.4Ghz
DeepCool Ice Edge Mini FS v2 (with 2 fans) + an additional 120mm fan in the back of my case.
Asus P5K
Two sticks, 1GB RAM Kingston 800MHz and another 2GB Kingston 800MHz
PSU - Antec 500 Watts 80 Plus
GTX 660 2GB Twin Frozr
CPU temperatures: Idle 42-44, Max 64-65°C (can't exceed 65 because lower speeds also reduce heat)
My overclocking settings:
8x Multiplier (if it goes to 9x I lose stability and freeze during the test)
CPU frequency set at 400
Dram clock at 801MHz
RAM timings: 5-5-5-18
VCore: 1.45 (the lowest stable setting)
Memory voltage: 2.1V (stock value for RAM)
All other components are running in Auto mode
I set my G0 to 1.525V, then observed a voltage drop of 1.45V during gaming and used temporary settings for streaming. Maximum temperature reached 80°C. Disabled eist and other functions while performing the OC.
What eist and other functions? When I was using the stock cooler, I was getting up to 80*, but the speed was always at 3.2 with this cooler when I reached 65*, and the speed drops is my main concern.
One of the distinctions between the B3 and G0 Q6600 lies in their temperature ratings. SL9UM corresponds to the B3, while SLACR matches the G0.
Those are the oldest, slowest, and least powerful Core2 quad models available. My recommendation is to at least upgrade to a Q6700, which is all G0.
Could we consider returning the other cooler? Perhaps the CPU might stop working soon.
By the way, I tested my SLACP QX6800 G0 at 3.72GHz and 1.5V, reaching up to 3.99 MHz at 1.588V.
I think that would be a better choice.
I checked the cooler's specifications—it supports a 95W CPU. Your 105W CPU is overclocked by about 33% and also has overvoltage applied, which likely pushes it to around 160W through that cooler.
https://smallformfactor.net/reviews/cpu-...ry-roundup