How high with a 2.4c and corsair 3500 RAM??

hamoncules

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Nov 1, 2002
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I trying to figure out how high i should OC my chip but am a little confused.

If my RAM is stock 433MHz and i want to run the chip in a 1:1 ratio I OC the FSB of the chip to 866MHz giving me in essense a 2.598Mhz Processor.
However
if i wanted to run my CPU:RAM at 5:4 then I would elave the ram stock at 433 and OC the CPU to 1082.5 MHz. This is where i get confused, as far as i know (and my knowledge is limited) I can OC the CPU in .5 MHz increments so i geuss running this configuration is impossable.

Would i then be forced to Under-clock the ram to 400MHz and OC the FSB to 1000Mhz to get a CPU speed of 3GHz at a 5:4 ratio?

Did i buy 3500 RAM for nothing is my question i guess??
 

Spyder

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May 24, 2003
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Hey. First off, to keep things simple I like to refer to all FSB speed as their real speeds rather then their DDR or QDR speeds. You have a 200MHz FSB cpu and 217MHz corsair ram. Thats a nice platform. What mobo?

Oh I forgot to mention that running your ram async doesn't really hurt you if you get s substantially better oc out of your cpu... with INTEL cpu's anyway.

Anyway, if you want to go to 250MHz FSB then you will need to use the 5:4 divider... but your 2.4C will ba able to handel more :) If you up the FSB to 271 (which you should be able to do) that'll let you run your 2.4C @ 3252MHz with your ram running @ 217. so if your only gonna go to 250 MHz FSB then yes you don't need 3500, but there is no reason to just stop there ;) GL
 

mixerman

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Jun 17, 2003
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how would the rame only be at 217 if the front side bus was like 270mhz... that doesn make sense to me?

My system:
P3 850mhz (100fsb), 512 Micron PC133, Abit SE6, IBM Deskstar 75gxp (60 gig @ 7200rpm), Hercules 3D Prophet 2 GTS (64 meg), SB Live MP3, Pioneer 16x DVD, Asus 45x CD-Rom
 

hamoncules

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I am using the asus p4c800. I can find how way to get my ram above 200. THis may be a limitation of the board but i was sure i read somewhere that it was possable.
Plz help.
 

LtBlue14

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fsb:ram ratio is your answer.........
run 5:4, or if you see speeds instead of ratios, run 254:201 and you're above 200...

<A HREF="http://www.planettribes.com/allyourbase/ayb2.swf" target="_new">411 UR 84$3 R 8310N6 2 U$</A>
 

Creator

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Jun 13, 2003
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I need similar advise:

2.4c, p4p800deluxe MOBO, 2x256 dual channel Geil Golden Dragon 400DDR

The max I can OC is 5%(210fsb) keeping ddr400(200)using preset BIOS options.

Manually setting to DDR320(160)and I can get away with a 20%OC (240fsb)but no more as system wont boot. Leaving DDR at AUTO I can OC up to 30% (260fsb) but the ddr defaults to 266(133) :(

Is there anyway I can keep ddr400 with a higher OC? You mentioned the ratio divider, if this is the way, would anyone know where this is on the ASUSp4p800 BIOS, dont think I've noticed it....or do I need faster sticks?