What should I set the LDT multi to for OC'ing?

[joejccva]

I am running:

A64 3200+ Venice
Asus A8N nForce4 SLI mobo
OCZ 1gb (2x512mb) dual channel 2.5 CAS RAM
Gigabyte 6600GT Geforce

Was going to build machine, run a stock burn-in test for 24 hours (too long? too short?), then start doing some OC'ing. Question is on the LDT multi....

Zebo states in his Quick and dirty A64 clocking guide this:

1. Max HTT/FSB should be first ..*only works if motherboard has locks. Most A64 boards do today. Sata 1 and 2 are not locked on some nforce mobos use 3 and 4.

So based on my motherboard, should I be setting my LDT multi to 3 or 4 to start the OC process? What do you guys generally set yours at?

Thanks for advice!
Joe

 

[exar333]

well, generally you want a HTT of ~1000....so if you have the fsb from 200-250 then x4 and then 250-300 fsb x3 is needed

iv seen some people with better stability of ~240 fxb with a 3x multi, so i guess it depends on where u set your fsb....

 

[SrGuapo]

Jyust make sure your HTT stays below 1000 (200-250->4, 250-333->3, 333-500->6). If it still seems unstable try lowering it again. You shouldn't see much of a performance hit until it starts dropping below 500 IIRC.

 

[mooncancook]

It depends on what fsb speed you are going to run. For instance I'm running a 3000+ @ 270x9 (2.43G), and I set my HTT to x4 = 1080 (270x4). It runs stable, but i heard running HTT too high will give you problems, so try not to go over 1100 (10%).

 

[joejccva]

Originally posted by: SrGuapo
Jyust make sure your HTT stays below 1000 (200-250->4, 250-333->3, 333-500->6). If it still seems unstable try lowering it again. You shouldn't see much of a performance hit until it starts dropping below 500 IIRC.

Oh I see now but wouldn't everyone want to set it at 3 so they can use a higher FSB? (250-333->3) that way they can get more speed?

 

[BitByBit]

Hypertransport speed doesn't seem to have any significant affect at all, according to this Athlon 64 overclocking article.
It probably means that even at lower speeds, HTT links simply aren't being saturated.

 

[mooncancook]

Oh I see now but wouldn't everyone want to set it at 3 so they can use a higher FSB? (250-333->3) that way they can get more speed?

depends on how extremely you wanna OC your cpu. I'm satisfied with a 2.4g cpu from a 1.8g cpu right now and it's mighty stable. might try higher clock later when i get the better cooling P180 case.

 

[imported_whatever]

3 should be fine, there is virtually no difference in performance between the different settings (at least down as far as 2.5x)