Problem with Ram speed

allnight

Distinguished
Jun 5, 2004
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0
18,510
Aight, so I just put my new rig together, 2.8c, msi neo2-p, and ocz pc-4000 el gold. Went into the bios, and changed the ram speed from atuo (default at 400 mhz), to 500 mhz with a 5:4 ratio. I get into windows, load up cpuz and bam, my ram is running at 333 mhz...I have no clue whats going on, I updated the bios to the latest version, and I still get this problem.
Any suggestions or solutions would be greatly appericated.
Thank you
 
G

Guest

Guest
With My P4P800 I have to set the ram speed to 400mhz instead of auto, and then I put the FSB to 250 and then it runs at 250...Otherwise it gives me weird results. Also run with a 1:1 ratio, or a slightly lower FSB it will give you better result and that 2.8 can probly take it easy. Just go slowly and see if you reach 250...My 2.6 is runin at 30-35c idle with the stock fan with a fair overclock...

Asus P4P800DX, P4C 2.6ghz@3.25ghz, 2X512 OCZ PC4000 3-3-3-8, Leadtek FX5900 w/ FX5950U bios@500/1000, 2X30gig Raid0
 

Cybercraig

Distinguished
Dec 31, 2007
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19,780
Read Scottchen's P4 Overclocking Guide. You're going at this kind of backwards. That PC4000 is overkill for 400mhz and a 5:4 ratio.

"I am become death, the destroyer of worlds. Now, let's eat!
 

Crashman

Polypheme
Former Staff
these guys are right, it's backwards. 5:4 will give you CPU of 5 and RAM of 4, so the CPU runs 200MHz (QDR800) and the RAM at 160MHz (DDR320, which is roughly DDR333). The ideal ratio is 1:1 with the CPU and RAM running the same speed! This is NEEDED for dual-channel operation, by the way. Do you have a pair of modules?

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