overclocking help

[sarmad]

hi

my problem is that i cant run 3dmark 06 tests on my pc with fsb 380 and

timing 4.4.4.12

my hardware:

-----------------

c2d 6400

patriot 2x1gb pc 6400 timing 5.5.5.15

aw9d max (14 beta bios)

-----------------

my voltage and other setting :

cpu voltage : 1.325 or 1.35 (make no difference)

memory voltage : 2.35

mch voltage :1.60 (higher or lower make no difference too)

cpu ferq:3.40 ghz and timing is 4.4.4.12

------------------

when i run 3dmark 06 sometimes it pass the first test but sometimes not and

display a "dont send" error message or blank screen until i press the

escape key and 3dmark closed automaticaly or if i run "super pi" it well

calculate the 32mb for the first time and if l run it again this message appear

"not exact round " or somthing like that. so whats your idea about the

voltages value ?

should i change any of them to higher or lower?

is mch voltage important? if yes what value i have to set?

thanks

 

[Ham]

Looks like you need a little more Vcore too me.

 

[sarmad]

doesnt make it better!

is mch voltage important?

 

[Mr. Smith]

c2d 6400

patriot 2x1gb pc 6400 timing 5.5.5.15

aw9d max (14 beta bios)

-----------------

my voltage and other setting :

cpu voltage : 1.325 or 1.35 (make no difference) trust me, it does make a difference, 1.5v is the general max for 24/7 usage. Try small increases and re-run benchmarks etc until you find stability

memory voltage : 2.35 seems quite high, is your mem rated to this voltage? 2.2v is common

mch voltage :1.60 (higher or lower make no difference too) I had mine set to 2.0v on high overclocks... Try 1.65/1.7

cpu ferq:3.40 ghz and timing is 4.4.4.12 for this frequency i'd imagine you need 1.45v but this depends on if you got lucky with your cpu. With memory, loosen your timings to 5-5-5-15 while you get a stable cpu, then re-tighten them

------------------

when i run 3dmark 06 sometimes it pass the first test but sometimes not and

display a "dont send" error message or blank screen until i press the

escape key and 3dmark closed automaticaly or if i run "super pi" it well

calculate the 32mb for the first time and if l run it again this message appear

"not exact round " or somthing like that. so whats your idea about the

voltages value ?

should i change any of them to higher or lower?

is mch voltage important? if yes what value i have to set?

thanks

The above error messages are due to instability.

1. Set mem to 5-5-5-15.

2. Increase v core slowly, at each increment try benchmarks.

3. Don't exceed 1.5v on your cpu.

4. Add a little to vmch, it does add stability.

5. once cpu is stable work your mem timings down

Let us know how you get on

 

[sarmad]

thank you Mr. Smith for your nice reply

i'll go for it when i come back home ,and another question is that

why i cant stable it on 4.4.4.12 timing with this ferq?

is it because of low voltage or my poor hardware ?

thanks again

 

[limqareb]

nah the hardware is fine try adding 1.375 - 1.4 vcore and try again, that much 5 oc need more vcore imo

 

[Mr. Smith]

thank you Mr. Smith for your nice reply

i'll go for it when i come back home ,and another question is that

why i cant stable it on 4.4.4.12 timing with this ferq?

is it because of low voltage or my poor hardware ?

thanks again

No problem mate.

You might be able to get 4-4-4-12, as a general rule you find your max stable cpu OC then work on your memory timings... High latency seems to bring stability to high OC's...

I beleive your problem to be low voltage, you have decent hardware...

 

[sarmad]

hi

finally in 4-4-4-12 timing its stable with this setting:

vcore:1.35

dram:2.10

fsb:350

mch:1.50

(passed the "prime95" and "3dmark 06" test)

------------------------------------------------

and if i dont change the timing and set it by SPD :

fsb:390

vcore:1.35

dram:2.25

mch:1.55

(passed the "prime95" and "3dmark 06" test)

------------------------------------------------

i am sure my pc can raise higher than what i found but i have to work on it .

and another thing is that why the 14 beta bios is more suitable than 15 beta

bios? and how i can find out what refresh cycle time value is correct for

4-4-4-12 timing?

thanks for your advice