See Re: Battle of the platforms: socket 754! for continuation of benchmarks at 2400Mhz once the problem with CR1 got solved.
SuperPI 32M detected instability at 2400Mhz, Command Rate 1T, despite prime95 (1h run) and memtest86 (9h run) working fine. It detected it within 5 minutes. This problem went away with Command Rate 2T, but I do not want to use that. Since CPU voltage adjustment in BIOS doesn't work, voltage cannot be increased and per my rule CPU clock should go down by 200Mhz. Indeed 2400Mhz proved to be edge of stability as I originally anticipated. It may be possible to stabilize it on another board with CPU voltage adjustment but I'm not going to do that.
I'm going to do further testing at 2200Mhz CPU, 259Mhz base, 8.5x multiplier, HT 777 (3x), 400 memory (divisor 11) and post 3d mark benchmark results. This may be of interest to anyone having Clawhammer 3400+.
Last edited by AlexZ on 2026-05-03, 16:52. Edited 1 time in total.
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