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Asus M2N32-SLI Deluxe -- will not POST after BIOS upgrade to 603


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Hi folks -- would appreciate help here. Have toiled countless hours and need some sunlight!


Here are the key components:

1. ASUS m2n32-sli deluxe

2. AMD Athlon 4600+ AM2 dual-core processor

3. 4GB memory - CORSAIR XMS2 2GB (2 x 1GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Unbuffered Dual Channel Kit System Memory Model TWIN2X2048-6400


I was able to setup the system and install OS and other applications. Then I updated the BIOS from version 504 to 603 using ASUS flash utility. After this my system will not post.


Specifically, If I flip the power switch on the back the fans will rev for about 6 seconds and then go off. But then when I push the power switch on the front nothing happens -- no fan whirring, post, boot, etc. I have changed connectors, CPU fans, used only 1 memory chip in slot closest to CPU, etc.


It seems that the Bios upgrade screwed up the system. Is there a way to reverse the bios upgrade, or somehow get the system to post so I can change some BIOS settings?

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