A64 3000@ 2.5

fireontheway

Golden Member
Jul 8, 2003
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I think i hit the wall with my setup (see sig).2.5(stable) is not bad but i just wanna take it to 2.7.Right now i've got it set at 280x9, 133 divider, 3X HTT, 1T 3 4 4 8.Help me push it guys,gimme some ideas. Thanks :)
 

Quino

Diamond Member
Oct 9, 1999
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I hit a wall around 280 too. However, I found that this mobo undervolts on the CPU. 1.35V when it is at default. I can go at default up to 275 HTT then after that I cannot get it stable at all, no matter what voltage :(
 

zakee00

Golden Member
Dec 23, 2004
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make sure your ram passes memtest, 1T is hard on ram. if your ram is unstable, set your ram at 2T. espically with value ram :S
nice rig though, ive got my HTT at 295 stable with a 133 devider, 2-4-4-7 1T :D.
 

fireontheway

Golden Member
Jul 8, 2003
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Ok i got it up to 2610mhz now on 2.5 3 3 7 1T with 1.59 vcore.133 divider,290x9.Memory is running at 193mhz,Well im happy but i also tried using a gig of Geil PC4000 (500ddr) and for some reason i can't get it to run at 230 something with a 166 divider which is below it's rated speed .Am i doing something wrong or Geil really sucks?
 

Duvie

Elite Member
Feb 5, 2001
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Hmmm...another antec!!! The 350 is weak on the 12v rail so I say it could be....Really need to list all the volatges as seen at idle and load for us to ASSume anything....

If you are at 1.6v that means what?? SEt 1.6v in the bios or actual vcore as being reported by some program???

To "hit a wall" there need to be some sort of factor holding you back all of a sudden...lets say you are stable at what 279??275?? If so at what vcore was it needed to be stable??

An actual example of hitting a wall would be like doing 275fsb at default vcore(1.4v) and then 280fsb not being stable at (1.6v)...That is a wall...It shows some other limiting factor as .2v or near 14% increase should garner 5 more fbs and 40 more mhz....

Is that the case or has it started to increasingly take more vcore??? If so that is just a natural progression....


You seem to be limiting the ram with conservative speed and timings so that is a good thing....

Lets rule out mobo then....

Take last known overall stable clockspeed....Then drop the multiplier to 8.5 or 8x and then pick a hihger HTT that gets you to same clock level...You may have to lower ram to 100 divider if you go above 400ddr for your ram or it may make it a factor....

I thought maybe my board was unstable at 300fsb and I couldn't get 2.7ghz fully stable...I dropped the multiplier to 8x and did 330HTT and even 60mhz slower it found dtability and at lower vcore....

 

fireontheway

Golden Member
Jul 8, 2003
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Originally posted by: Duvie

To "hit a wall" there need to be some sort of factor holding you back all of a sudden...lets say you are stable at what 279??275?? If so at what vcore was it needed to be stable??

An actual example of hitting a wall would be like doing 275fsb at default vcore(1.4v) and then 280fsb not being stable at (1.6v)...That is a wall...It shows some other limiting factor as .2v or near 14% increase should garner 5 more fbs and 40 more mhz....

That is what exactly i was experiencing at first.It can do 280x9, 3xHT, 133 divider @default vcore.Raising it to
284(even with a voltage increase) or so would make it fail Prime95.

Anyway,i got it up to 2610mhz @1.59 vcore even with more aggressive timings(2.5 3 3 7 1T).Settings remain the same:133 divider, 290x9 and 3xHT.So guess miracles do happen
:).

By the way,are you running it at 1:1?Because i have a gig of Geil PC4000 and its not stable with a 166 divider(230 something mhz).