true, synthetic benchmarks dedect default speed, but programs like 3dmark do increase in speed.

"some versions of windows"...? i'll install SP1, see if that solves it.

I don't think that will help

It would be pretty odd, if a program released on 18th august 2003 doesn't work well in Win XP...

It doesn't hurt to update, i'll report back in half an hour.

SP1 didn't do it. Installing other updates too.


I'm sure now the incorrect mhz recognition is the cause of appearantly low performance!

When I boot at 2600mhz, and change the speed to 3500mhz, i'm 100% sure my machine is actually running at 3500mhz, but windows doesn't adapt to the changed speed.

When i launch a game of vice city, it's like the game is on crack: everything goes a bit too fast. Your car feels like it does 300kph, but your speedometer still says 200kph.

An excellent example is an old DOS game without a frame limitter on a new machine: they don't adapt to the high speed.

I hope there's a fix for this error.

my guess is, you put that CPU in another motherboard and it will not perform like this.

like said on shrimp, I can clock much higher with clockgen then when I use the Bios.
I don't believe it.

You don't believe the cpu is running at 3550mhz stable, or you don't believe my system would not crash with a cold boot at 3550 mhz?

What happens if you compare your 4ghz bios oc with a 4.3ghz clockgen oc?


-edit-

If i set clock speed to 3500mhz, and i reset, the post screen says "3.55Ghz". Is that cheating too?

-edit2-

Latest version of cpu-z shows correct speed.

I'm going to compare these two situations:
a) Boot at 2600mhz, oc in windows to 3300 & bench.
b) reboot at 3300mhz & bench

very very interesting what we see here!

I wanna know how this turns out :)

CPU scaling seems to be ok, and there is no difference between a) & b) in performance.

(In situation a, not all apps dedect the correct speed, in contrary to situation b).

difference 2.8 <> 3.0 is almost nihil, but 3.0 <> 3.2 is alot
how come?

You tell me? I'm just showing the test results. All options were left the same.