Overclocking a Celeron II 566 to 850 on a Abit BX6-2

[darknght]

I have an Abit BX6-2 MB running with a Celeron II 566 on a SlotKET III, with the updated BIOS version. I've tried to overclock it using the Soft Menu, the SlotKET, and both together. However it ALWAYS comes up with this message when it starts up: "CPU is unworkable or has been changed. Please recheck CPU Soft Menu." And whatever I do I can't make it go away! From there it lets me choose to go into the Soft Menu or press F1 and continue, if I press F1 it boots up at 850 and works all fine and dandy. But after I reboot/shutdown, the number that shows up at the start goes back to 566 and I have to set it up all over again and the **** message pops back up! Argh...

My question is, can I make it stay at 850 without that **** message or having to overclock it everytime I restart my computer? Also what is the correct way of overclocking it, using the Soft Menu, SlotKET jumpers, or both?

[krusty the klown]

Hmmmmm......

Well, I haven't used one of those mobos, but maybe I can help....

The slocket probably has a jumper for 66, 100 and 133MHz FSB chips (I have one of those slockets, but I can't remove it and have a look 'cos my computer won't work and I won't be able to type this reply http://sysopt.earthweb.com/forum/wink.gif ). Set it at 100MHz and see what your mobo says.

If you still get the message, go into the BIOS and configure the FSB and multiplier to be 100FSB / 8.5 multiplier. Come out of the menu and choose 'save and exit'.

It may be that you've done this already. At a guess, your mobo might not support 8.5* multiplier, so that's why it's getting its knikaz in a twist. The new celerys have really high multipliers (like 8.5, 9* etc.) and can exceed that on the mobo, but they still run at the correct multiplier....

The CPU seems to tell the mobo that a lower multiplier is being used. Use SiSoft Sandra to see what multiplier the mobo thinks its using, then tell the mobo to use that value in the BIOS. I'm running a celery600 @ 900 on a Soyo VIA board and Sandra reports a 5* multiplier when the actual value is 9*, but the mobo actually only goes uop to 8.5*.

You can get Sandra from:
http://www.sisoftware.demon.co.uk/san_dem/html/dload.htm

Use the 'mainboard information' to find out the multiplier.

BTW: I've no idea whether this will work - I've not experienced this problem and my suggestions are what I'd try if I was faced with the same problem, so if it doesn't work (there's absolutely no harm in trying) don't think I'm an @$$ http://sysopt.earthweb.com/forum/wink.gif

[neo_otyugh]

in the bios softmenu make sure that speed error hold is not enabled too

if the slocket hs "cpu default" jumpers set them there

[This message has been edited by neo_otyugh (edited 08-11-2000).]

[darknght]

How could I of overlooked that?!?! I've tried everthing except disable the speed error hold. Well it works great now thanks! http://sysopt.earthweb.com/forum/smile.gif

BTW - Intresting clip from an article taken from Tom's Hardware:
--------------------------------------------

As the multipliers have only been defined up to x8.0, smaller multipliers had to be 'recycled':

x4.5 will work as x8.5 (PIII 850, Cel 566)
x5.0 will work as x9.0 (Celeron 600)
x5.5 will work as x9.5 (Celeron 633)
x6.0 will work as x10.0 (Celeron 667)

-------------------------------------------- http://www.tomshardware.com/cpu/00q3/000720/celeron-02.html

[BC]

LOL from everything that I am reading what intel is doing on the higher chips is just overclocking them. "the voltage on the p3 are 1.60-1.65 but on the 933-1000 they are 1.70" That says to me that they will only overclock stable @ 1.7v So why not get a cheaper cpu and overclock it? And why did they clock lock the celerons if even they are going to overclock? The reason they gave when they locked the multiplier on the celerons is to stop bad resellers from selling a celeron 500 cpu as a 600mhz cpu. Am I right?

[Win_98]

you're somewhat right but it also to stop us from overclocking as well so it is both. oh well they did what was right for them I guess I got no problem with that. since you can still up the FBS and get even better performance yeap a celeron does run much better at 100mhz then it does at 66mhz limiting the dimm speed to 66mhz cpu as well feel kinda of like a turtle to me.