Hello, it's Yotomeczek and me again!
We had another benching session after hours at PCLab.pl, this time with LN2 and Phenom II sample.
rig:
- AMD Phenom II 940 week 41
- ASUS M3A79-T Deluxe voltmodded
- G.Skill PI 2x 2GB 800-4-4-4-12
- Corsair Dominator 2x 1GB 1250-5-5-5-18
- ASUS GTX295
- Thermaltake 1000 W PSU
- Yotomeczek's single stage and LN2 pot - both by Ryba
Max MHz:
Max PI 1M:
Max Wprime 32m:
And max PI 1M on SS:
Rig picture:
Pot full of LN2:
Some observations:
- with HT Link Speed under 1000MHz there are no signs of coldbug
- with HT above 1000MHz CPU coldbugs around -55°C
- any benchmark longer than SPI 1M was almost impossible to get stable - I think motherboard might be the problem
- CPU scales with cold rather than with voltage. Anything above 1.85 V shows no improvement at all with LN2 (1.61V under SS).
After all, we were a bit unsatisfied with low stability at longer benches, but nevertheless happy We're not finished with Deneb, retail CPUs are coming
Big thanks to Bruno from AMD for sponsoring our LN2!
Bookmarks