Chaintech VNF3-250 NF3-250 Mainboard Review (1)
Gortok 8 May 2004

CPU OC (Sync)

When overclocking the VNF3, I've found that this particular CPU doesn't seem to care what voltage you send to it. That is to say, it runs just as stable at 1.57 as it does at 1.67. Vcore over 1.7 only increases temperature without benefit of higher overclocks.

I ran tests with RAM settings from cas2.0 to cas3 with very little margin of difference. I'm beginning to believe the internal memory controller of each A-64 is unique, much the same way the Thoroughbred cores all overclocked differently. This might also explain the Sandra Mem bench being higher than BT's  3200+ used in his reviews.

The following screen captures will illustrate some of my findings.

My first tests were to see how far I could take the ram...in sync with the cpu. 200-200, 201-201...etc. This yielded a final of 218 on this RAM stick. That gives us a 180mhz cpu OC and a Sandra score that looks like this:

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