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Overclocking new CPU

M

Mattd46612

Senior member
Well I have a 3000+ Venice on the way along with a Epox EP-9NDA3J on the way. I would like to overclock it as high as possible on air cooling. How will my Golden Dragon PC3200 ram effect things? Will it hold me back that much or not? Im gonna go with the stock HSF also. Should I just sell my 1.5gb of ram and pick up a higher speed or higher quality or will I be able to hit 2.5-2.6ghz.
 
if u want to save money.. u can use divider to keep the ram's speed down..
BUT..
DDR100 2:1
DDR133 3:2
DDR141 10:7
DDR150 4:3 **stay here and up
DDR166 6:5
DDR183 10:9
DDR200 1:1

going below ddr150 or using divider lower than 4:3 will give u some penalty... at least it is for DFI boards...
also.. for $30 u can get a xp90 at jab-tech.com which is OEM ver.... i'd snap that in.. cause ur load temp will go easily over 50c w/ stock hsf under load if ur aim is 2.6ghz..
and if u want.. u can add some fan over ram to cool it.. and give it some nice juice to try to keep it up w/ the cpu...
 
Ok well here we go. Got my new system together. 3dmark05 = 3349 and Aquamark Demo - 49,122 These are the stock numbers, I will keep you posted as I overclock.
 
First Overclock attempt running a 3:2 divider 133. 9x 250 = 2250mhz. Also OC'ed the 6600GT 560/1120. 3dmark Demo - 3721 Aquamark Demo - 57,655
 
Booted up at 3:2. 9x280 = 2520. Ran a Prime95 benchmark and its INSANELY fast. First/Last times 17.757/108.409. Further test results coming.
 
Cant see to keep it stable up around 2.5 ghz. Its running in the low 30c so I suspect a ram issue but definetly need some expert help. 2.25 seemed rock solid and Im gonna be really pissed if I cant pull 4000+ speeds here.... Someone please gimme a hand.
 
Zebo's OCing guide is your friend 🙂 Seriously, all the info needed for OCing is in there.

First determine your max HTT [akin to FSB] speed.
Set your CPU multi to maybe 6x or even 5x, & see how high you can get your HTT before it starts to get unstable.

Always make sure your LDTxHTT = 1000 or less.
To make it easy while testing, just leave it at 3x, since it's very unlikely you'll get the HTT higher than 333 anyway (which would be 3x333=999)

I would worry about RAM speed last, so set the RAM to the lowest divider (100 aka 2:1) with very loose timings.

Check that the AGP/PCI is locked (should be a bios setting somewhere)

If that mobo has four SATA ports & you are using one, you may have to find out which ones are locked & which are not. Usually the non-nForce ports are the locked ones.

For CPU stability testing, use Prime95 Torture Test small FFTs.

Good luck!
 
I just cant seem to crack 281fsb no matter what voltages or settings I tried. Running at 133 now tried 100 but got nowhere. Am I maxed out because of my ram?
 
Originally posted by: Mattd46612
nope kept the multiplier at 9x. Had it as 9x280 but it wasnt stable. even with running my ram at 133 instead of 200.
Click to expand...


You misunderstand us. We are talking about the HTT multiplier. By default your processor comes with a 1000 MHz HTT (200X5). Now that you are overclocking, your HTT is 281x5 (or 281x4) both of which are too high for regular stable operation. Try to find a HTT multiplier in BIOS.
 
ohhhh hypertransport? Yea there is a setting, it is on Auto now I will make sure its what 3 or less correct? so Httxfsb = >1000 correct?
 
Correct 3x
do the drill now
with both memory and cpu on low multipliers find max HTT
then do the other two one at a time
now you know the max for HTT, Memory, and CPU
post back
or find the overclocking calculator 🙂


and I do not remember if this was covered but using IDE
IDE uses PCI bus so locked does matter
you did back up and have a copy of your bios on a floppy
over-overclocking PCI can corrupt your hard drive-bvvs before proceeding
 
Now there is a AGP lock on this board but I dont see anything that locks the PCI frequency..... Being that this is one of the better OC boards for 939 I dont see how it wouldnt do that. But since I had to reformat once already I have my doubts....

Edit: Sigh, since my reformat I havent been able to get my cd-rom to work right and have been gettin post codes on the board 33,34,35,36. Everything seems fine except it doesnt properly read cds.
 
Pushing on with overclocking till i hear from epox support about the cd-rom issues. Lowered HTT to 3 and it allowed me to get my fsb up to 315 before it failed. Will be trying 9x290-300-310 in the next few hours.
 
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