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Crashes after RAM frequency change

Last response: in Memory
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January 1, 2010 8:00:45 PM

So, a few weeks ago I downloaded the CPU-Z program and I discovered my RAM is running at 400mhz which I know you double to 800mhz. The problem is that I have this RAM:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
which as you can see is meant to be running at 1066mhz.

Not a problem, I went into the bios and changed the frequency to what it should be as well as the voltage which according to the sticker on the RAM itself should be 2.10v. After I did this though my computer started blue screening me every so often. The first time it crashed was the first time it has ever blue screened in the 6 months I have had the computer. I thought it was just a coincidence but then a couple of hours later it happened again.
I set the RAM back to its original 800mhz and everything was fine again. Then the other day I changed it back to 1066mhz and it began crashing again.

Unless this is just a really weird coincidence I don't know why it's happening.
Any ideas?

EDIT: It takes a good couple of hours for it to first crash so maybe a heat issue? Even though it has a heatsink and I have case fans to keep everything cool.
Also my motherboard is definitely compatible with my RAM.
a b } Memory
January 1, 2010 8:12:23 PM

Would be helpful to know your MoBo, Chipset, CPU and other components.
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January 1, 2010 8:20:28 PM

Sorry, here you go:

Intel Core 2 Duo E7500 @ stock (2.93ghz)
4gb OCZ Gold Edition 1066MHz RAM
1TB WD Caviar Greenpower HDD
Asus P5Q-SE2 Motherboard
Vantec Ion2 620w PSU
Asus Nvidia Geforce GTX 260 Graphics
Santa Cruz Turtle Beach 5.1 Sound Card
BOIS: American Megatrends (don't know anything else about it)

Any other info needed?

EDIT: Chipset is Intel P45/ICH10 with Intel fast memory access technology
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January 1, 2010 9:39:30 PM

U run that memory now at 400Mhz frequency - 800Mhz bus speed. DDR- Double Data Rate. In BIOS u can set the max speed at 533MHz- 1066MHz with 5-5-5-15 CAS at 2.15v . Bump to 2.2v
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January 1, 2010 10:44:05 PM

Pointless running that ram at that frequency - only good for overclocking

Your better off with a 1:1 ratio and lower latencies.
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Best solution

January 2, 2010 12:04:07 PM

DRAM:FSB 1:1 ratio whas a good thing on DDR era, but with the DDR2 u can have a faster memory speed than FSB speed with no stability issue. Anyway i don't recommend to use this memory at 267-533 MHz DDr for the sake of 1:1 ratio. U have a better,faster,stable memory at this settings:
400MHz- 800MHz DDr ,4-4-4-12 timings , default voltage 1.8v. U may try to overclock this machine, then get the 1:1 ratio and rise together FSB and DRAM frequency. That will be a very good thing to do. Try at least a 333MHz x 11 FSB . BUT then again u will need an aftermarket cooler and good airflow case.
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