> Some Athlons are seeing a speed increase others are not.   The two
> that I know are not enjoying a speed increase are running under Win2K.
> Maybe there is a bug in the way v21.1 determines if prefetch
> is supported.
>
> For those Athlon owners that are not seeing a speed boost, try setting
>          CpuSupportsPrefetch=1
> in local.ini.

This sure worked for me.

Athlon 850MHz Testing M12328xxx
Iteration Times
V.20            V.21            V.21 with CpuSupportsPrefetch=1 added to local.ini
0.174           0.174           0.141

Athlon 1200MHz Testing M12899xxx
Iteration Times
V.20            V.21            V.21 with CpuSupportsPrefetch=1 added to local.ini
0.151           0.151           0.123

Both computers running Windows 2000 Server. Note that stopping Prime95
(leaving Prime in systray) then editing local.ini, then starting Prime
wasn't good enough. I had to actually close the program, then restart
Prime95.

Matt

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