Old Celeron Processor: What Speed?

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Mar 27, 2002
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Yesterday I helped my friend reinstall Windows. To do that, I had to change the boot order through the bios, and there was a password so I cleared it. I found that I didn't know the FSB/multiplier settings after I cleared it. The FSB/multiplier setting is at 66FSB, 3multi right now, but when I boot up it shows the Celeron as 433mhz. I'm thinking there's probably a lock on the multiplier that makes my bios settings irrevelent, which would be a good thing since I don't want to end up running the system at too high a speed. So what should the speed be? There is an old 433mhz Celeron, right? Is there any way that 433 could be too much for any Celeron?

Another question, totally irrelevent: What should I set the SDRAM speed to? There's 10ns, 8ns, normal, fast, ultra. It's at 10ns by default. What sounds right for a system with old Celeron processor, previously a Pentium 233?
 

AndyHui

Administrator Emeritus<br>Elite Member<br>AT FAQ M
Oct 9, 1999
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That's right, it's a Celeron 433.

Celerons are multiplier locked and the B21 pin always requests 66MHz, so default settings will always give you the default processor speed.

The 10ns and 8ns settings are "profile" settings for the RAM which will set all the CAS, RAS, etc settings in one go. 10ns is for PC66 and very cheap CAS3 PC100. 8ns is for CAS2 PC100.

You probably have a chipset that allows synchronoous RAM timings only, so the RAM will be running at 66MHz. Set it to 8ns or fast or ultra.
 

kadajawi

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Dec 29, 2000
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433 too much for a Celeron? Nay... my 366 is running at 458, many 366 should run at 550. They are taking quite a lot :)