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Old 10-29-2003, 02:38 PM   #1
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ASUS A7N266-VM SE - Can't change CPU speed??

My A7N266-VM SE will not go past a 1700+ CPU.

The CPU which is in the machine is a 2500+ Barton. I can't see anywhere in the BIOS to change the CPU speed. It says you can do it via jumpers but they are both set at default 133MHz. Tried changing them anyway and no luck.

Can anyone help me?
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Old 10-29-2003, 03:00 PM   #2
Shiro Usagi
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That motherboard doesn't support the Barton CPU's.

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Old 10-29-2003, 03:06 PM   #3
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Oh no!!!!

Thanks for letting me know anyway Cricket m8.
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Old 10-29-2003, 05:58 PM   #4
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Right, I have now put in a 2600+ AMD. Its showing as a 2000+ though and I don't know how to change it!!

Someone please help!!
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Old 10-29-2003, 06:03 PM   #5
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Change the FSB to 133MHz. Looks like it's at 100MHz right now.

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Old 10-29-2003, 06:16 PM   #6
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It was on 133 already but had a play anyway. Anything I do it still shows as a 2000+.

Any ideas?
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Old 10-29-2003, 06:20 PM   #7
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You need at least BIOS version 1004 for the motherboard to recognize and set itself up for the 2600+. See this.

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Old 10-29-2003, 06:24 PM   #8
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BIOS version is 1006.

This is doing my head in! Anymore ideas m8?

Really appreciate everything so far!
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Old 10-29-2003, 06:25 PM   #9
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Clear the CMOS.

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Old 10-29-2003, 06:32 PM   #10
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Still no joy!

Anymore ideas?
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Old 10-29-2003, 06:40 PM   #11
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There are two different 2600+ Thoroughbred Athlons...one is a 133MHz FSB and the other is a 166MHz FSB...which one do you have? Sounds like you have the 166MHz FSB model and that motherboard doesn't support the 166MHz FSB models.

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Old 10-29-2003, 06:46 PM   #12
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Not sure which one I have.

Is there anyway to tell?
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Old 10-29-2003, 06:48 PM   #13
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Still got the box you bought the processor in? Or find the receipt and the serial # for it...
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Old 10-29-2003, 06:50 PM   #14
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Look on the die...the markings will tell you if it's a 133MHz or 166MHz processor. If the last letter in the CPU identification markings is a "C", it's a 133MHz/266MHz processor. If it has a "D", it's a 166MHz/333MHz processor.

Check this page out

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Old 10-31-2003, 07:53 AM   #15
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Thanks for all your help guys. It was a 166Mhz processor.

I have now ordered a 2400+ and hopefully that will work fine. I will let you know if I have any problems.

Thanks again!
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Old 10-31-2003, 05:23 PM   #16
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if in doubt play with the jumpers
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Old 10-31-2003, 05:53 PM   #17
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Quote:
Originally posted by EvErY_DaY
if in doubt play with the jumpers
Playing with the jumpers won't do a thing if the motherboard doesn't support the CPU or the 166MHz FSB speed.

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Old 10-31-2003, 11:53 PM   #18
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unlock the cpu's locked multiplier factor and it woulda worked. that is, if you can change the multiplier in the bios w/ that motherboard...

Last edited by escher; 10-31-2003 at 11:55 PM.
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