AHHHH hit a wall! AMD 955be

ZRock · Jul 21, 2011

Hey so I finally got my case/cooling straight but I've hit an OC wall...
My voltage is already at 1.45, dont' know how safe it is to go higher... CPUz is already calling it 1.48.

I'm stable enough to get on the forums and type this out, but I'm bsod'ing on prime95 within 20s. Any tweaks you can think of?

NB at 2.2ghz 1.1v

Khan · Jul 21, 2011

cpu-nb seems a bit slow, try it around 2600 with a 1.22-25v

ZRock · Jul 21, 2011

Ok

thanks!

ZRock · Jul 21, 2011

Still not stable with these specs, temps around 38 idle right now so those arent the problem. Any other ideas?
NB at 2600 and 1.275v

Khan · Jul 21, 2011

post the pics of the spd and memory tabs in cpu z and lets see what else could be wrong with it. also 38 idle is a bit high, whats load temps look like?

Fr1nge · Jul 21, 2011

NB: 2200MHz = 1.2v-1.25v Min. 2400MHz = 1.3v+ etc....

boucher91 · Jul 21, 2011

post the pics of the spd and memory tabs in cpu z and lets see what else could be wrong with it

ya i bet its mem too at higher clocks on cpu most have to ease up on mem or give it more voltage..

trents · Jul 21, 2011

Let's see CPU-z tabs: "Memory" and "SPD" now.

ZRock · Jul 22, 2011

Here they are

davedree · Jul 22, 2011

bsod's nearly always memory ! and I can see a problem you're running in single channel mode.

ZRock · Jul 22, 2011

Lol, even in dual channel iw as having issues.

JKessell · Jul 22, 2011

You want my 955BE BIOS settings so you can try them? I'm 955BE Noctua NH-D14 cooled at 4.0ghz stable OC.

davedree · Jul 22, 2011

ZRock said:
Lol, even in dual channel iw as having issues.

cpu-nb freq is quite high for cpu at 4ghz, if you want to half your memory bandwidth then go ahead.

davedree · Jul 22, 2011

when you were in dual channel mode was that with all 4 dimms populated or just 2 ? I reacon your ram timings need to be loosened too.

Fr1nge · Jul 22, 2011

I notice that you have Samsung/AData Ram. Call your manufacturer and get the correct timings for those modules. Even for 1333MHz those seem a little loose for timings.

ZRock · Jul 22, 2011

I am down to just the Adata sticks now... No idea who to contact for it, i got them free from work. I can drop them back into dual channel later today.

Fr1nge · Jul 22, 2011

Heres AData's customer support contact information. http://www.adata.com.tw/index.php?action=ss_main&lan=en I don't see a direct phone number unfortunately so you might have to just send a email. Take a look on their website as well they have some ram specifications under 'Products". But if you do send a support email make sure you know your product number, it should be on the side of the module.

*NOTE* Some ram modules have the timings on the side of the module it self. So if you haven't check the side of your ram modules I recommend doing so to see.

ZRock · Jul 23, 2011

Still having issues.

Latest attempt

Fr1nge · Jul 23, 2011

1.480v @ 4GHz seems kinda low voltage for a C3 I can't even get that with my C2. Try 1.500v - 1.550v and report back after you have done that.

trents · Jul 23, 2011

Bump your ram voltage up to 1.55 and your CPUNB voltage up to about 1.25.

What are your core temps when stressing with Prime95 for 10 minutes?

AHHHH hit a wall! AMD 955be

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