overclocking 3800 x2 help needed

psylee

psylee

psylee

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3 Dec 2006
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42
really need an aidiots guide to overclocking this as i havent a clue and can only get it to 2100 tops

im on an abit kn9 sli board
with 1 gig of ram

really need step by step help as i dontunderstand all the jargon of ratios and how to do the ram overclock neither

thanks in advance
 
Youve maxed out your ram, use 333 instead of 400 (or whatever your mobo calls it.

Then lower your HTT/LDT to 4x (from 5)
 
Try these settings:

CPU Multiplier: 10x (You shouldnt need to touch this)
HT Multiplier: 4x
HTT (FSB): 240
Cool & Quiet: Off
Ram: DDR333
Fan speed: 90% (Use speedfan to control it in windows, if its too loud for you)

CPU Multi x HTT(FSB) = CPU Speed (mhz)

In this case: 10 x 240 = 2400mhz

You shouldn't need any extra volts at 240 (mine is stable at 250), but you might. If it doesnt post/boot to windows, drop it to 230 and try again.

There's a couple of things to remember when overclocking.

- Increasing CPU FSB, also increases your RAM speed by the same amount. Thats why you sometimes need to put the ram on a divider (making the ram run slower at stock than it normally would). So setting your ram speed to DDR333 initially, and then setting your CPU FSB (HTT) to around 240 (40mhz higher than stock) will take your ram back up to DDR400 speeds (or very close to it).

- You need to keep your HT Link (CPU Bandwidth) around 1000. You can use CPU-Z to check that. An easy way to work it out is, HT Multiplier x FSB = HT Link (in this case 4 x 240 = 960) Not quite 1000, but if you get your CPU to 250mhz FSB it'll be back to 1000.
 
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well ive done all of the above

lowered thr ht to 4
cool and quiet off
ram set to 333

tried the following
raised the fsb to 240 wouldnt boot
230 same
220 same
210 will boot and the ram frequency is 350hz now still way under

somehow i think the cpu wont go any higher
its an amd athlon 64 x2 3800+ windsor core

ht link for the ram is now at 840hz so plenty left in the ram

any ideas
 
whats the tops it will goto vaults wise

ive even tried it at 1.45 still no go on that neither

ive seen people overclock them at stock upto 2.5

am i doing somthing wrong or what ?
 
Lower your RAM 266MHz. You will be able to go to 2.5GHz easily. At least, I can. When I try and put the RAM to 333MHz, I can't boot with any settings either.
 
chipset vaults ?
cant find anything for that

ive tried everything now even lowering the htt to 3 still no joy

most i can get out of this thing is 2260

any other ideas
:mad:
 
slackening to what ?
currently there set at 5 5 5 15

i thought that was slack

what would you suggest ?

apart from chucking this in a a bad hobby :)
 
right an update :mad:

lowered the ram to ddr 400 on board up the volts on the cpu tp 1.70 put the fsb to 249 tried to boot but stopped in windows half way ish.
so went back into bios upped the voltage to 1.8 and guess what same thing so i let it try and boot again without success.
now wont boot what so ever.
reset cmos took battery out put back in still nothing pc is booting but nothing on screen wont boot monitor at all.

have i killed the cpu ?
pc boots but i cant see it on the monitor.

to me personally i would say that was gfx but i can test it as its pcie and my others a p4 with agp so dunno what to do.
take it back ?
only had it just over a week.
 
You really shouldn't be putting those sort of volts through an X2 on air cooling. I put 1.75v (might have tried 1.8v once) through my x2 3800 but that was with phase.
 
nope like i said only got a p4 3.06 just built this one
as i thought id go for a descent cheapish system

if this happened to you and you couldnt try it on another system what would you think ?

the system does boot but doesent put anything on the monitor
if i didnt know what i already did i would say prolly the gfx card.

will a system still boot with a dud cpu ?
 
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