For sure. I couldn't boot with 400FB (regardless of mulitplier) with 4x2GB Corsair PC2-6400C5. Updating to BIOS 1306 from 1201 fixed this issue for me. I really should've noticed the incorrect (slightly) SPD readings.
For the first time in a build I am using IntelBurnTest instead of Prime95 for stability testing. Although I get a lot higher temps, it seems a better and quicker way to stability test.
This does mean though I've hit my thermal limit during testing a lot quicker than I would've with Prime95.
For everyday use I've decided to go with:
- 3.2GHz
- Multiplier: 8.0
- FSB: 400
- DDR2-801 (FSB Strap to NB: Auto) - for some reason this is more stable than a manual setting of 800Mhz (FSB Strap to NB: 400)
- MEM. OC Charger: Disabled
- Ai Clock Twister: Lighter
- CPU Voltage: 1.2850v (1.288v under load)
- CPU PLL Voltage: 1.52v
- FSB Termination Voltage: 1.22v
- DRAM Voltage: 1.80v
- NB Voltage: 1.12v
- All other settings: auto/default
With the above settings I was able to run IntelBurnTest on the maximum stress setting for 10 loops (total time just over an hour) without error. Temps would hit a maximum of 65-70c and idle 34-38c
I did take it up as far as 3.6GHz but the temps were not to my liking under IntelBurnTest although it did seem stable.