A quick question, the answer to which is probably "don't worry about it", but if I don't ask I don't learn.
System: Phenom II 965, AMD 770 chipset motherboard, 4GB DDR2.
The memory is made by Mushkin, rated to DDR2-1000. It would never run at 1066 on my old system (Core2Duo) but I thought I'd give it a try on my new one. Left timing settings to auto and tried 1066. . . and it's fine. Completed some Memtest86+ runs without issue, but my programs seem to disagree as to what timings I'm running.
Memtest says DDR2-1067 (8-7-7-20)
CPUZ in Windows says it's running at 5-7-7-20.
My board only goes up to CAS 7 anyway, so I'm somewhat confused at 8.
So I changed to manual timing settings. I put in 5-7-7-20, and it's fine. Memtest still thinks I'm at 8-7-7-20 though, and CPUZ says 5-7-7-20. Changing to 6-7-7-20 moves Memtest to 9-7-7-20, so it's as if there's another setting that's "adding 3", to put it bluntly.
Unless CPUZ is right, and I'm really running at CAS 5. <shrug>
Now at 5-6-6-18, Memtest run completed fine (although it's claiming 8-6-6-18). Prime-Blending now but only 5 mins so far, CPUZ says CAS 5 still. I suppose I should try a proper memory benchmark at some point.
System: Phenom II 965, AMD 770 chipset motherboard, 4GB DDR2.
The memory is made by Mushkin, rated to DDR2-1000. It would never run at 1066 on my old system (Core2Duo) but I thought I'd give it a try on my new one. Left timing settings to auto and tried 1066. . . and it's fine. Completed some Memtest86+ runs without issue, but my programs seem to disagree as to what timings I'm running.
Memtest says DDR2-1067 (8-7-7-20)
CPUZ in Windows says it's running at 5-7-7-20.
My board only goes up to CAS 7 anyway, so I'm somewhat confused at 8.
So I changed to manual timing settings. I put in 5-7-7-20, and it's fine. Memtest still thinks I'm at 8-7-7-20 though, and CPUZ says 5-7-7-20. Changing to 6-7-7-20 moves Memtest to 9-7-7-20, so it's as if there's another setting that's "adding 3", to put it bluntly.
Unless CPUZ is right, and I'm really running at CAS 5. <shrug>
Now at 5-6-6-18, Memtest run completed fine (although it's claiming 8-6-6-18). Prime-Blending now but only 5 mins so far, CPUZ says CAS 5 still. I suppose I should try a proper memory benchmark at some point.
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