CUSL2 Overclocking 566 problems

[percboy]

Hope someone has an easy tip for this problem. I`m trying to get my 566 celeron back up to 850. I just upgraded my BH6 and went with the ASUS board . I have the dips set to "jumperless" and in bios, set CPU to "manual", set both FSB options to "100,100,33" and save. Try to boot but comes back to bios and tells me my setting are wrong (duh) only gives me 66 FSB. Have "halts" off. Any experts out there..thanks.

 

[BradS]

What voltage were you running at 850 on the BH6? The CUSL2 does not immediately apply an increased vcore upon powerup. Try this:

Boot up at 66. Go to the bios setting for vcore and increase it. Then exit. It should go to windows now.

 

[percboy]

Thanks , but yeah I had voltage up to as high as 1.80 (max) , just kicks me out of "post" back to bios with settings at 66/100/33.

 

[BradS]

What voltage did the chip require on the abit. The cusl2 should load windows with that same voltage or less.

 

[percboy]

..minimum on the BH6 to boot was 1.75 , ran good at 1.80

 

[BradS]

Well then, on a warm boot, you should be looking at windows at 1.75. Try reseating the cpu and HSF. I'll let some other people take a stab at this.

edit: Did you reload windows after you changed motherboards?

 

[percboy]

yea blew HD away and started fresh. Chip ran fine in BH6 for 8 months......:disgust:

 

[BradS]

What bios revision are you running? I don't like advising people to flash their bios because of the possibility of a bad flash. But, I have heard of cases where people were having trouble running celerons on Asus motherboards, and a bios flash helped them.

 

[RoboTECH]

I couldn't get a 566 to overclock in a CUSL2 for the life of me. Royal pain in the ass. Overpriced board went back.

Seems you should stick with BX for Celeron o/c'ing.

 

[BradS]

I've heard of similar stories with the CUBX. I ran a 633@950 and a 533a@800 on my CUSL2 with the original final bios (1001). Each cpu booted right off, no messing around.

Hey - We need more suggestions here!

 

[percboy]

Well we are at 850 now , but if I try to start computer after being completely shutdown for any length of time (over 1 hour or so)it will revert back to the FSB setting in bios telling me to change settings.
If I boot at 66 FSB and run for 10-15 minutes, I can go back and set everything to 100,100,33 and it will boot. Shut it down, (to cool?) for more than an hour , boots to bios. Temperture related?
Bios=1003 Vcore=1.80