I want to overclock my E8500 to match my DDR2 800 1:1

Script917

Member
Sep 4, 2004
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Hi, I have never overclocked anything before but I want to slightly overclock my E8500 to match my ram 1:1.

It is my understanding that a stock E8500 isn?t keeping up with DDR2 800 ram. If I understand correctly, increasing the CPU?s FSB to 1600 @ 3.6Ghz would match the stock ram speed correct?

How do I go about doing that?

I have an ASRock P45R2000 board, and G.SKILL 2X2GB RAM.

I know that DDR2 1600 would let me open up the CPU further but I simply don?t want to. I want to keep stock cooling and have a tame overclock which is why I went with the 800 ram.
 

boomhower

Diamond Member
Sep 13, 2007
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Well there is a short answer and a long answer. The short answer is go into your BIOS and adjust your FSB to 400Mhz.

Now the long answer. You may or may not be able to do this with you stock multiplier. This is going to put you at 3.8Ghz which is likely to overwhelm your stock heatsink. So you will need to go and anjust your multiplier until you find a setting that your temps are reasonable. This also assumes you are following the basic OCing rules as well.
 

boomhower

Diamond Member
Sep 13, 2007
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Also there is no such thing as DDR2 1600. It tops out in the neighborhood of 1200. You need to move to DDR3 to get any higher.
 

imported_Woody

Senior member
Aug 29, 2004
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I think he means FSB 1600 allowing his DDR running 1:1 at 800. You'd have to run your CPU at 7.5x or 8.0x multiplier giving you 3.1GHz or 3.2GHz respectively. Either a slight overclock or a slight underclock.

Increasing your FSB and running your RAM at 1:1 while lowering your CPU multiplier to keep it around stock 3.16GHz will improve your performance only slightly if at all. You won't see any noticeable improvement in memory bandwidth and your motherboard will just run hotter.

In my opinion there's not much point to this.