Jump to content
Sign in to follow this  
cerupcat

Is this a common problem? 3800 x2 can't reach same OC I had months ago

Recommended Posts

I have a Manchester 3800+ x2 and a few months ago I was running 250fsb 2500mhz just fine. I ended up having bad sticks of memory at the time and had to RMA them. I recieved new ones and never tried to overclock back to 2500mhz since I was going to sell the RAM and upgrade to 2gb when I originally only had 1gb. Now, I recieved a 2gb OCZ XTC kit, and I ran memtest and everything seems fine with the RAM. Seems 100% stable in windows too with the RAM at DDR500. But, when I try to overclock the CPU to 2.5 I can't get OCCT to go past about 10-20% and then it stops (not freeze). I set the mem divider down a lot to make sure that wasn't the issue, and I still can't hit even 2450mhz on the CPU (OCCT won't pass).

 

Is this common? I was running fine before at 2500 just fine for probably about a month or two before I changed ram. I tried upping the vcore to 1.5-1.53ish which I know is higher than it was before at 2500mhz. So I'm not really sure what would be causing this.

 

Any thoughts would be great!

 

Maybe OCCT is a bad first test?

Share this post


Link to post
Share on other sites

different ram = different system = different OC

 

Even if the RAM is out of the equation you never know how a major component like the memory will affect the entire system. Unfortunately for you, it seems to have reduced your OC.

Share this post


Link to post
Share on other sites

I had exactly the same (without component changes), seems that the max OC "wears out" over time. Sold my 3800+ because of it. Will be nice to see if some other guys that finalized theirs last year would validate that same settings again to see if there is a pattern

Share this post


Link to post
Share on other sites

Hi,

I had the same "issue" with my old Mobile XP 2600+ (good old nF2 times...). After some time I had to increase the voltage to get the same overclock, but I was running high vcore since day one; so that might be the reason. My 3500+ Venice doesn´t show this behaviour, changed my Ram (1GB -> 2GB, high voltage Ram -> Samsung UCCC) without a difference in overclocking or voltage settings.

Gipse

Share this post


Link to post
Share on other sites

Ok, well I guess there's no much I can do then? That's weird since I thought a lot people get better overclocks over time.

 

It's weird since I can boot into windows all the way up to 2700mhz (didn't try further) @ 1.55vcore, but OCCT always fails from 2410-2700. I would think if I could boot into windows that high I would fine something stable under 2700. I did just try changing the multi from 10x to 8x and FSB to 310 = 2480mhz and OCCT passed. So it's weird that when using a multi of 10x @ 240-250FSB OCCT failed, but changing to 8x and it passes. Since putting it at 8x, I wasn't sure if it was worth it since the memory has to be on a divider vs. 1:1 at 10x.

 

I don't think anymore vcore will do anything I guess, plus I'm on AIR using xp-90 (although temps never go above 40c) and I don't think anything above 1.55 is recommended for 24/7 usage.

 

Is OCCT a bad test? Once OCCT fails haven't tried any other ones. So I don't know if the other ones would pass or not.

 

Does anyone know if the 3800+ x2 like different multipliers? Maybe it would be better to run memory on a divider to get the higher mhz?

 

Thanks for your thoughts.

Share this post


Link to post
Share on other sites

There is absolutely no performance penalty from putting your ram on a divider on the s939 platform, so if that si what gives you the best overclock go for it.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • Create New...