am i doing something wrong??

[scrandman]

You should try dropping the RAM onto the 266 setting to see if it will give you some more scope on the CPU overclock.

Those timings don't look right. Mine are as follows (Corsair Value RAM):

3.0 clocks cas# latency
3 clocks ras# to cas# delay
3 clocks ras# precharge
8 cycle time
11 bank cycle time
16 clocks dram idle time
1t command rate

[Zak33]

You should try dropping the RAM onto the 266 setting to see if it will give you some more scope on the CPU overclock.

what he said.

It is default at 200 which is DDR 400 for the ram.

You knocked the 400 down to 333 to start with, and then in taking the bus up from 200 to 240, potentially you take the 333 back up to 400 again. Safe. I bet that worked.

However, you're going up to 267. That is a 33.5% overclock. (67 as a percentage of 200) Possible I grant you, but not on that ram setting.
That takes the 333 up by the same 33.5% which is 111 on top: 333 + 111=444. And that ram wont do 444. It's will do 400.

Knock the motherboard ram down to 266. With a 33.5% increase that takes it back to 355, which is still way within the 400 of the ram.

The 3x is also important on the HTT.

With an A64, clock speed of the cpu is all important, the ram speed is secondary.

Also please bear in mind a lot of Asus mobo's (i'm unisng one now) wont go above 250 - 255 bus speed. I know my chip will go higher than 2.5, but the motherboard won't.

It's still bloody fast though.

[NightshadowUK]

And that ram wont do 444.

^Clicky^

[scrandman]

^Clicky^

YMMV...

Anyway, back in the days when S939 was bleeding edge hardware, it was common practice to lower the RAM speed as low as you could go to find the maximum CPU o/c. Truth was (and still is) that RAM speed counts for little compared to CPU speed with A64 other than bragging rights.

It's all a question of what the end user wants - I can run my Opty 146 @ 2800 with the RAM at 186, but prefer to run it @ 2400 with the RAM on 200 because it allows me to undervolt the CPU to by 0.2V to 1.2V thus reducing power used, temperatures and the need for noisy fans. It's also fast enough for anything I do.