Does anybody know?

[Chewy]

Command Rate (CR) 2T

Memory Bus 180.11 MHz

these are the big performance killers, with a faster cpu they will bottleneck
more

[Chewy]

what did you use for cpu cooling?

what's core temp idle and under load?

[silvershadow02]

For CPU cooling i use the Standard cooling that you get with the CPU, it has allways been sufficient, with no overclocking from memory, temp was 26-35 (lowest being idle and top being under full load) in a 18 celsius environment, the voltage is 1.37 with no overclocking, The CPU fan never went above 3000 RPM.
With overclocking, 250 FSB & 11x Multiplier temps are 42-52 degrees celcius, also the CPU fan was under full load at 4000 RPM. Voltage is 1.502

Asus include a nice litle utility for monitoring all temps and voltages.

[Chewy]

225/200 cpu locked at 12x

cool and quiet in bios will cause problems with the overclock, other thing is when fsb goes up the mem bus may get too high
when I get back home I'll look and try to tell what will get you to the 1T command rate, it's a big perforance boost

[silvershadow02]

Thanks Chewy!

[Chewy]

http://www.3dxtreme.net/index.php?id=asusa8vdeluxe4

under advanced in bios, memory configuration, down at the bottom
is a 2T command setting, default and auto enable it, disable for 1T.

[silvershadow02]

ok, i have done that. The FSB will go to 260 Mhz and with a multiplier of 11x, the volatage is 1.48, although in the BIOS i set it to 1.550
My total speed is 2.86 Ghz
I think that is quite good, but it keeps freezing for half a second then work again, for example i can type this and i cant see what i am typing for about 1 second, then it apears on the screen, i am not sure why.

[Chewy]

it's probably not the memory yet, what's the memory divider set at?

[silvershadow02]

ok, i have now got an FSB of 285 Mhz with a 10x multiplier, voltage is 1.600 in the bios. At 1.575, but when windows loads it just reboots.
The memory timing is 3-3-3-8 (CL-RCD-RP-RAS), i am not sure what a memory divider is so i can't give you that. The Memory Bus is 237.65 Mhz.
I am pretty sure that the CPU will go higher but it is limited by voltage, i could increase the volage (the A8V-Deluxe lets me go to 2.700) but i know there is a point where i could give it too much voltage and it might damage the CPU (i think).
The temp is 36 idle with a 3000 RPM fan. The semi-freezing has stopped now and it apears to be stable, although to make sure when i encode a very hard dvd with DVD shrink, that runs the CPU at 100%, gives you the max temp & a stability test.

[Chewy]

you won't be able to use shrink for a heavy recode with that high a membus.
the link I gave you shows the divider setting

to test performance I used dvdd to put full files from a long movie on hard drive(2hr 25 min),
then set up shrink to do a 70% transcode with DA and AEC off, time.


lots of blue screens at first

[silvershadow02]

so i should set it to 2:1 (DDR 400)?

[Chewy]

no, try the lower settings at higher fsb and check in Everest until
you get the membus close to 200. when you raise the fsb the divider
holds the memory down I bought real good memory so I wouldn't bottleneck

start at 266 then up to 333

[silvershadow02]

ok, i tried the other memory settings, 266 - 333 and 400 but my computer says that it failed due to overclocking. The only one that will work is 1:1 200, the system is perfectly stable at 2.85 GHz but the Membus is 142.42 MHz.
The only one that will work is the AUTO, but then the Membus is too high at 237 MHz.
Also is 1.600 volts too high for my CPU?

I found out what the semi-freezing was, it was Everest probing the PC for temps, Voltages, Specs and so on. As soon as i switch everst off the semi-freezing stops.

[Chewy]

you are running your ram at 100/200 then the front side bus is overclocked
42% hence the mem bus is 142.
back the front side bus down to 230 and try the 266 divider, adjust fsb to get the memorybus to 200, or start changing the cas settings to get the memory faster at lower mem bus.

[silvershadow02]

Thanks Chewy, My Membus is at 199.82 Mhz, about as close to 200 as i think i'll get.
The FSB is 233, multiplier at 12, voltage 1.550, RAM Voltage is 2.7, i am not sure what the V-Link Voltage is but that is at 2.5
The Ram is set to 333 and it seems to be ok, it's late now so i will switch the pc off and i'll test it out for stability tomorrow.
I'll post it here how the tests tomorrow go.
Cheers