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A7N8X Detects Wrong CPU ?

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  #1  
Old 24-01-2003, 03:32 AM
Pamulli Pamulli is offline
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Question

I just built my first system using the A7N8X board and an XP 2400, but the board is showing my processor as an XP 1800+. I ran the PC Probe software and it displayed a message saying the processor was being determined by jumpers and not by detecting the CPU. I can't find any jumpers for this or BIOS settings. I haven't done anything to the default BIOS settings other than setting it to Aggressive. Can anyone help?

Thanks,
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Old 24-01-2003, 04:40 AM
gianthatr gianthatr is offline
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What is your FSB set to? I'm guessing 100Mhz? Try setting it to 133Mhz. Read page 21 of your user manual and see if your jumpers are set sorrectly...
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Old 24-01-2003, 07:39 AM
Pamulli Pamulli is offline
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Unfortunately I'm not at the computer at the moment so I can't check my BIOS, but I looked at page 21 in the manual and it talks about jumper settings for clearing the RAM clock and Keyboard Power? The only other jumpers I found deal with powering up with the keyboard, mouse or USB device? Those wouldn't affect my CPU would they? I enabled all of them. There doesn't seem to be any jumpers dealing with CPU other than changing the FSB and mine is set at 266/333.
Sorry if these are such basic questions, this is my very first system from scratch. I just thought that it should auto detect my CPU be default?
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Old 24-01-2003, 09:08 AM
a0n-C a0n-C is offline
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make sure ur using the correct type of ram. i had this problem with mine when i first booted it up. i wasnt using compatible ram and it caused weird problems including the one ur experiencing. check asus' sight for compatible chips. asus' table for a7n8x ram
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Old 24-01-2003, 12:28 PM
Pamulli Pamulli is offline
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I'm using 2 Dimms of 256 meg Corsair XMS PC3200 CL2.

I did find something suggesting that my FSB may be set to 100 rather than 133 and I'll check that when I get home. Unfortunately I don't know very much about those settings so I hoped the default was correct. Is there a guide anywhere for multipliers and things like that?
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Old 24-01-2003, 02:30 PM
a0n-C a0n-C is offline
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if ur running on 100FSB then u need to change the jumper that is located on the board next to the chipset so that it can hand bot 133 and 166 FSB
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Old 28-01-2003, 05:52 AM
Pamulli Pamulli is offline
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It was a simple BIOS setting. The default was 100fsb and once I change it to 133fsb everything was fine. Well excpet that the sound doesn't work.

Thanks for all the suggestions, I guess you can tell this is my first build.
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