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E5200 - Overclocking Thread - Page 95

Poll Results: Should the thread name be changed to E5x00 Overclocking Thread

Poll expired: Jan 24, 2009  
  • 58% (39)
    Yes, Change it to E5x00 Overclocking thread
  • 41% (28)
    No, Lets keep it how it is
67 Total Votes  
post #941 of 4653
Quote:
Originally Posted by hout17 View Post
I was reading in the intel E5000 series specs that the max cpu recommened cpu vtt was 1.26v. Then absolute max was 1.45v. What do you suggest I keep it under I haven't really messed with it yet but am going to up it to see if I can't gain some stability.
I upped mine from 1.2 to 1.28 and I was only able to gain 1mhz in fsb. vtt is also called "fsb termination voltage" so this is the voltage of the bus. I doubt that increasing that voltage to 1.45 would help much. The E5200 has a low bus frequency, so the only thing, I believe, you will get by upping the voltage all that much will be heat generated by your cpu.
Edited by glussier - 1/8/09 at 3:32pm
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post #942 of 4653
Thanks guys for your help earlier.

For some reason, I can't get it to be stable past 3.25GHZ. I've gotten it to post and get into windows on 3.33, 3.5, 3.66, but they all fail in stress testing. This is underclocking my ram. I've also run memtest86 to rule out my ram as the problem.

I'm running 3.25 at 1.3125V and i've tried the above up in the 1.38 range and it still isn't stable.

Any thoughts? Not a good OC chip?



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post #943 of 4653
As stated before you can't trust memtest solely to rule out a bad stick of ram. I've had bad stick pass memtest.
    
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post #944 of 4653
Alkora, have you manually set your ram voltage in the bios? If not, check at what ram voltage your ram is suppose to work and go in the bios to set-it at that.
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post #945 of 4653
What are max safe NB and FSB voltages?
I've got them at +0.2 and +0.15 for a 300 x 12 OC

It passes 10 iterations of IBT and 2hr OCCT stable. I let it run orthos overnight and it failed @ 7hrs 16mins.
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post #946 of 4653
@glussier
Yeah, i've manually set my ram voltage. Rated is 2.0V and I've tried that and 2.1 for the OC.

@pizzaman
Is there another way to test the RAM?
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post #947 of 4653
Quote:
Originally Posted by djhunt View Post
What are max safe NB and FSB voltages?
I've got them at +0.2 and +0.15 for a 300 x 12 OC
The fsb voltage is 1.26 for an E5200
As for the NB, it depends of the chipsets. Your motherboard is equipped with a P35 chipset which already requires more voltage than a P43/P45 chipset. You can do a Google search to find the max voltage for the P35.

Quote:
It passes 10 iterations of IBT and 2hr OCCT stable. I let it run orthos overnight and it failed @ 7hrs 16mins.

What did you test in Orthos, the small ffts, large ffts or the blend test???

Oups I've reread your previous post, and you are running the blend test. You should redo the test with the small ffts or the large ffts. The small ffts will tell you if there is anything wrong with the cpu, the large ffts mostly test the ram.
Edited by glussier - 1/8/09 at 10:11am
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post #948 of 4653
Orthos blend is good for testing ram. OCCT and other CPU test will also fail with bad ram. Test with your CPU at stock so you can rule out CPU being a factor. Try testing one stick at a time.

EDIT: yea, large FFTs are good for testing ram too. Blended has found problems I've had with ram.
    
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post #949 of 4653
Quote:
Originally Posted by alkora View Post
Thanks guys for your help earlier.

For some reason, I can't get it to be stable past 3.25GHZ. I've gotten it to post and get into windows on 3.33, 3.5, 3.66, but they all fail in stress testing. This is underclocking my ram. I've also run memtest86 to rule out my ram as the problem.

I'm running 3.25 at 1.3125V and i've tried the above up in the 1.38 range and it still isn't stable.

Any thoughts? Not a good OC chip?
If i got it right... You tried 1.38V Vcore? Why dont you try running it at higher FSB and lower multi (as glussier stated earlier, some E5200 are more stable when using non fractional multiplier)... Try multi at 10x,11x,12x...
You can also try and increase FSB voltage, upto 1.3V (same as VTT or FSB termination voltage), and/or NB voltage, upto 1.3V...
You can also try increasing PLL voltage, but that one is mostly needed when running 400+ FSB

Also i see youre running your ram at over 800mhz so it would be wise to lower that to the lowest possible frequency until u determine highest stable OC on the CPU/FSB... Increasing RAM speed and timings comes after that...

And just out of curiosity... whats your CPU VID? You can see it in Real Temo and/or Core Temp...

Quote:
Originally Posted by djhunt
What are max safe NB and FSB voltages?
I've got them at +0.2 and +0.15 for a 300 x 12 OC
I think its
NB = 1.40V
FSB Term Volt. = 1.30V (tops 1.35V)

Ive ran FSB voltage at 1.48V, but not in the long run... just for suicide runs..


P.S. I dunno why, but awfully lot of ppl always complain about their RAM... Most of the time it has nothing to do with DDR modules, and in the end comes down to something not set up right... Examples are djhunts IBT on 32-bit system, and Alkora's high RAM frequency while OCing.
Honestly i've never had problems with any of my PC components (EVER!!! - except when i bashed my mobo with my fist ), and personally think every piece of PC hardware is a togh mofo, and doesnt break easy...
Just wanted to throw that one out, hope you guys dont mind
    
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post #950 of 4653
@Pizzaman
Thanks- I'm running Prime now, have been for a couple hours. I'll retest with tighter timings later.

@miloshs
Yeah, my ram is now 800+, but thats just because 3.25 is stable for me. When I was trying higher, my ram was usually in the 6-700 range. I'll try the FSB voltage changes later and let you know. Luckily my board has some seriously nice heatsinks that will allow it to handle the extra voltage heat.

CPU VID = 1.2500V

I have used 1.38VCore, yes. I'm willing to try Glussier's suggestion of the 105% of intel's reccomendation as a max VCore. I think i might try that in conjunction with my next OC. I saw some other people talking about needing to have 1.4V+ to even get a stable 3.3GHZ+ OC. I guess it depends on the chip?
I'm not worried about lifespan, but 1Year of life would be nice.

Here is what i've tried:
10x333, 11x333, 10.5x333, 12x300, 11x300, 12x280.

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