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Ram making overclock unstable

post #1 of 16
Thread Starter 
Hey,

Got my 1055T half a year ago with some DDR2 Corsair 800MHz ram. Now, every single time I go above 3.5GHz, my system becomes very unstable. Since the ram is rated at 800mhz, once it reaches above 833, i get bsods faster than I can boot into Windows. I've tried messing with the timings and voltage, but none of them seemed to work.

Multiplier: 14x
FSB: 250
DRAM Freq: 833MHz

CPU Voltage: 1.385V --- (tried up to 1.475, no difference)
DRAM Voltage: 2.08V --- (tried up to 2.16, no difference)

Now, is there a way to fix this without getting a new pair of ram?
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post #2 of 16
Can you lower the ram multiplier and see if it will boot at a lower frequency?
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post #3 of 16
Thread Starter 
I wish there was a way to lower the ram multiplier... Or is there?

EDIT:
Stupid me... The mutliplier is already at the lowest.
Edited by SLAiNTRAX - 10/6/11 at 11:11am
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post #4 of 16
Quote:
Originally Posted by SLAiNTRAX View Post
I wish there was a way to lower the ram multiplier... Or is there?

EDIT:
Stupid me... The mutliplier is already at the lowest.

First, loose the memory timing.
Second, increase the CPU/NB voltage.
Third, set your NB frequency around 2400-2600.

Then run prime95 blend or equivalent to see if it's stable.
post #5 of 16
Thread Starter 
What should I set my CPU/NB Voltage to? I don't remember the stock value.
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post #6 of 16
Quote:
Originally Posted by SLAiNTRAX View Post
What should I set my CPU/NB Voltage to? I don't remember the stock value.
On mine, the stock is 1.2V. You can start from 1.25 and slowly raise it up to 1.35V.
post #7 of 16
Thread Starter 
Nope, won't boot into windows. Here's the timing I'm using. That's as high as I can go.
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post #8 of 16
Quote:
Originally Posted by SLAiNTRAX View Post
Nope, won't boot into windows. Here's the timing I'm using. That's as high as I can go.

Are you sure it's memory related? It could be the CPU. You can lower the multiplier to find out.

On memory, try command rate 2T.
Edited by Bulldozer - 10/6/11 at 11:57am
post #9 of 16
Thread Starter 


Here's an older picture I took a while ago. I go to DRAM Timing Configuration. Also DRAM Frequency cannot go lower than 833 as seen in the picture.

The ram is set to use 2T.
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post #10 of 16
Quote:
Originally Posted by SLAiNTRAX View Post

Here's an older picture I took a while ago. I go to DRAM Timing Configuration. Also DRAM Frequency cannot go lower than 833 as seen in the picture.

The ram is set to use 2T.

Set the CPU/NB frequency to 2400-2600MHz.
You have very high FSB, so bump the NB voltage to 1.22-1.25V


Lower the CPU multiplier to 12 or 13 and test the memory first.
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