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How do I make RAM run stably?

T

t3h l337 n3wb

Platinum Member
I'm using 2 512MB sticks of Corsair Value Select PC3200 running @ 2.5-3-3-7 1T with 2.7 volts. Would raising the voltage make it more stable? I ran Memtest for about 30 minutes until it was on like test #7, and it ran fine, so I then went into Windows and loaded up SuperPi. When I tried to calculate 32M, it displayed some error about rounding, then another about square root or something. So I'm assuming my RAM isn't stable. HTT is 239, frequency 4x, CPU multi 9x @ 2151Mhz, and running a 9/10 RAM divider. I've heard other people get past 215Mhz with their Corsair VS, so what should I do?
 
try CAS 3 i dont think your RAM can hold out cas 2.5 at 40Mhz OC .. but i can say that you can pump 2.85 volts without worry, this might bring you stability .. try it ..
 
you need to test your mem more... 30 minutes is nothing...

loop test #5 for a while... i try to do at least 300+ loops
 
Okay I lowered it to 210Mhz. Ran Memtest for about an hour, no errors. Ran SuperPi for 32M, worked fine. I'm running 3dMark03 just to see if it's completely stable or not. Do I have to keep repeating this whole cycle for every mhz increment/decrement? It's so tedious... Oh, and how do I loop a test?
 
You dont repeat the test every time you raise the speed. You raise it as much as you can while still being able to boot, then you test for stability working your way down. That's how I do it anyway.
 
Oh, I see... Interesting... Anyways, I tried 211.5Mhz with voltage at 2.85, nForce voltage at 1.65, and it ALMOST passed SuperPi... So I lowered it back down to 210. That seems to be as far as I can go... Oh well...
 
Try bumping up the CPU Vcore. My Corsair VS DDR400 is good up to about 274MHz FSB at 5:6 memory divider (228MHz RAM speed). The RAM voltage is set at 2.7VDC.
 
Originally posted by: t3h l337 n3wb
Originally posted by: kman79
Does upping the ddr mem voltage add stability? I always wondered that?
Click to expand...

Yeah, it's supposed to.
Click to expand...

I mean does it always add stability? I know it can add stability but can it also cause instability?
 
Originally posted by: t3h l337 n3wb
CPU Vcore? That affects RAM? Wow, never knew that 😵
Click to expand...

yeah because the mem controllers are on the CPU die itself, they may need some more voltage as they draw of the CPU volts. i would say bump the volts upto 1.5 and retest, with also ram at 2.85 volts as well .. remember voltage = stability but also incurs heat and can potentially cause damage to some components if excessive ..

Read Zebo's Guied with regards to whats deemed exceptable
 
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