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Overclocking 4GB 1333mhz Kingston ram - Page 2

post #11 of 19
Thread Starter 
How much more voltage should I use, and upto what is it safe? I dont want my ram to catch fire or anything.

EDIT: 1467Mhz starts up on CL9 without any voltage increase, running SuperPI 32M now..

EDIT2: Got the error on the sixth core again. It has done this on two instances and is slower on the test, so I think it's unstable and cant take the 1.175 voltage. I think I'll just lock it tongue.gif
Edited by Devilmaypoop - 4/11/11 at 8:03am
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post #12 of 19
Thread Starter 
Well now it passed, so should I start working the timings lower, or run Memtest to be sure?
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post #13 of 19
If you want. Memtest would be a good choice but don't use it as your primary test/run it that often as it's not the most reliable for OS stability testing, more for checking for defective memory
post #14 of 19
Quote:
Originally Posted by Devilmaypoop;13069705 
Err SuperPI seems not to like my PC at all. When I run it CPU 5# gets ERROR EXACT NOT FOUND, and when I close SuperPI Chrome instantly crashes. It passed around 100 runs of LinX and 12 hours of Prime95 blend overnight so I dont think thats instability... Havnt even tried to OC the ram yet.

And I'm not shooting for 4Ghz btw.

EDIT: Yea, that SuperPi competely messed my pc up. Everything that wasnt crashing before started crashing and I had to restart..

Everything? How much stuff did you have running along with superpi?
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post #15 of 19
If you only ran 12 hrs of prime95 torture you haven't stressed your IMC/ram.

prime95 torture is mostly small FTT for the first 12 hrs and switches to large FTT for the last 12 hrs. Small FTT tests the CPU, large tests the IMC/RAM.

http://www.overclock.net/general-processor-discussions/838244-prime95-quick-dirty-guide-custom-settings.html

Link has instructions to set custom tests. Ideally for prime95 you need 12 hrs small ftt tests (for CPU) and 12 hrs large ftt.

So you could just do a custom large FTT test to test IMC/RAM.

prime95 itself says 24 hrs is required. I know most consider this overkill but I've found small instabilities this way and to me all my files/work is mission critical (aka I need them to get paid).

Memtest won't find many IMC instabilities but is great to test ram timings.

SuperPI pushes your IMC so you might have an instability in your system.

Good luck with your OC adventure!
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post #16 of 19
Thread Starter 
Quote:
Originally Posted by Mule928;13090568 
Everything? How much stuff did you have running along with superpi?

Messenger, Xfire, some small programs and Chrome. But I guess it was because of instability.

And thanks Ferret, I started a custom large fft's test right away.
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post #17 of 19
I can crash any system with enough stuff running.
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post #18 of 19
Thread Starter 
So, I've gotten the ram stable to 1467Mhz with 7-7-7-17 timings, so I'm pretty satisfied with it, as it wasnt suposte to OC that good tongue.gif

Latency with 9-9-9-22 was like 60 ns, now it's around 53-54 ns.
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post #19 of 19
KVR 1333 CL9 stock
OC: 1333 CL7 = 8.3Gb/s
OC: 1666 CL8 = 10.1Gb/s

The second one is quite an amazing result, i think, for such cheap sticks smile.gif
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