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Custom Made
Name: the RAM Date: June 18, 2008 at 13:05:39 Pacific OS: Win XP Pro CPU/Ram: 2.4GHZ 4core 2GB RAM Product: Custom Made
Comment:
I have just built a new quad core computer. Runs great, except for the RAM. I bought 1033MHz RAM which is compatible with my computer, but, when I go into CPU-z, it tells me that it is only running at 400MHz. I do not know why this is happening, but I am pretty sure that my box would run faster if I could get it back up to its native 1033MHZ.
Name: the RAM Date: June 18, 2008 at 13:11:46 Pacific
Reply:
Sorry, I had a different post name but computing.net always changes it right before I post.
I meant that I want it to run a 1066 which is its native speed.
BTW my FSB is at 266MHz.
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Response Number 2
Name: OtheHill Date: June 18, 2008 at 13:27:00 Pacific
Reply:
Look at the link below to understand DDR2. DDR2 1066 should be running at 533. Your RAM may be mislabeled or the timing settings are set too tight. Try manually setting the RAM to 533 in the BIOS. You may need to increase the latency settings in order to get in working.
The RAM should run at the same frequency as the CPU. If your CPU runs at 266MHz freq (1066MHz FSB), the RAM should also run at 266MHz (DDR533). If you run the RAM at 533MHz (DDR1066), it will be running twice as fast as the CPU freq. I believe this was already explained to you in another post.
"And that's the fishing line, because Sharkboy said so!"
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Response Number 6
Name: OtheHill Date: June 18, 2008 at 14:06:12 Pacific
Reply:
jam, I don't have any systems running DDR2 but I thought DDR2 settings were in sync with the labeling. I started to tell the RAM that the memory was actually quad pumped but decided to let him read it in the wiki link.
Are the RAM settings for DDR2 all set at half the labeled speed? How about AMD systems?
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Response Number 7
Name: kx5m2g Date: June 18, 2008 at 14:15:19 Pacific
Reply:
It should tell you DDR2-X, which is a clock speed of X/2 MHZ. In the BIOS you would want it to say DDR2-533, which would be a clock speed of 266 MHZ, as jam suggested it should be run at.
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Response Number 8
Name: kx5m2g Date: June 18, 2008 at 14:20:56 Pacific
Reply:
A further clarification: Using the link OtheHill provided, DDR2-X is an I/O bus clock speed of X/2 MHZ. That's the speed you want to match with the cpu frequency.
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Name: the RAM
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