CUSL2 + 700@933, 966, 1000 - narrowing down o/c probs (CUSL2 owners and o/c aficionados please read)

[bigd480]

I have a 700e with orb on a CUSL2

With Corsair (Micron chips) 7.5ns I can run 133/cas2 perfectly, 138/cas3 I can use windows but not games, 143/cas3 I can run apps/benchmarks but get errors

With Infineon 7.5ns I can run 138/cas2 with some games, 143/cas 2 or 3 gives errors

Now the corsair is supposed to be good to 150 cas3, and the infineon can supposedly do 143/cas2 (according to site reviews and people's experiences)

My chip stays at the same temp range (35-42C) regardless of the voltage (i've tried up to 1.9v to get the gig stable) so I don't think my cooling is the problem.

My video card has been running at 75mhz AGP for months so with the AGP divider at 1/2 on this board it is running under that.

Any ideas on what I can try to improve stability? Setting RAM timings to 2-3-2 doesn't help much. I want to ideally run 143/cas2, which I can do with the Infineon, but it produces a ton of errors. My OS is stable, I'm running WinME and never get blue screens or anything.

Please offer me some advice, especially if you've had CUSL2 experience.

 

[Mikewarrior2]

Well, on my cusl2, i had to back off my mem timings a little bit...

Is your speed setting 5/7 or 7/9? On my crucial 7e @ 151mhz bus, i have to set it at 7/9. In fact, anything over 139 has to be 7/9 instead of 5/7. That may be the problem for you.



Mike

 

[bigd480]

i keep it on 5/7 at 2-2-2 133 and 7/9 otherwise... I might try going to bios 1001a because i never tried it; went to 1002 final as soon as i installed it...

 

[Mikewarrior2]

YOu coudl always try the 1003.003 bios..

from CUSL2 Fansite


Mike

 

[bigd480]

tried it... gave me worse results than 1002

 

[AndyHui]

Most reports seem to say that the 1003.003 BIOS is very stable for overclocking...far better than the 1002 final.

Have you tried setting SDRAM Driving to Strong in the BIOS? That seems to help with RAM problems at higher FSBs.

 

[bigd480]

strong - yup did that too...

 

[bigd480]

any more ideas?

 

[AndyHui]

Try the new 1003 Final, or the even newer beta 1003.004 BIOS. Word is that 004 is even better than the final.

 

[Mikewarrior2]

The 1003.004 Bios is absolutely amazing!!!! I originally had my p3-650E @ 982(151 bus) @ 1.85 volts. With this bios, i can drop the voltage to 1.75 and it is running absolutely great. I've got ut in a window going as I type this



Mike

 

[bigd480]

Yup I agree, I've run 3DMark and UT flawlessly at 966/CAS 2 now

 

[Hankysmoo]

Mike, u serious? is the 1003.004 better than 1003 final? thats wat i just flashed to....i'm wondering if i should flash to beta 4....everything seems great now tho.

 

[masterskartrg]

i wish 1003.4beta would do that for me instead i recieve the opposite @966 1.80 with the 1003.4 i recieve crashes with ut had to bump vcore to 1.85 to be stable so i tried 1003final and back t0 the same drawing board 966 stable at 1.80

 

[sango]

Yep, P3700e doin 980Mhz @ 140:140:34 , 2-2-2 5/7, at 1.65vcore still! with this 1003.004 bios.
could not do that before, get as far as 139:139:34, BSOD's etc.
mem scores improved l'il bit - I'm rooting for this board to reel in the
iBX440- The heat is on.

******************************************************************
Sh*t, just to prove I wasn't seeing things or imagining them.
I rebooted ma system & tried me luck @ 141:141:35 , 2-2-2 5/7, 987Mhz, Stiiilll at 1.65Vcore & ah heck me, it booted. I've written this on those settings. I'm using Kingmax PC150 which supposedly can't cut it at 141fsb cas2. Win98se. just a humble TNT2 M64, at the moment.

 

[Mikewarrior2]

988@ 1.75 volts for me now... Running prime95/ut overnight to test it out...


masterskartrg, Sorry it isn't working for you.



Mike