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Motherboards, Bios & CPU Support Forum for Motherboards and CPUs; ASUS, Intel, AMD, BioStar

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Old 05-07-2008, 05:29 PM   #1 (permalink)
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Diagnosing no boot computer

I have a custom built PC that is powering on, but does not appear to be functioning.

First, system specs:
Robella Titan case (including water cooling for CPU)
AGI 580W Power supply [brand new]
Asus P5B motherboard [brand new]
Intel Core 2 Duo 2.4Ghz CPU [swapped with Intel P4 2.8Ghz]
Geforce 8600GT graphics card [brand new]
2x512MB Corsair DD2 RAM [brand new]

When I turn the PSU on, the mobo signal LED turns on. Pressing the power button enables all fans (GPU, case, water cooling radiator fans), I get a single beep on boot. No video is displayed. Neither processor (P4 or Core2) cause any other beeps.

Thoughts?
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Old 05-09-2008, 01:30 PM   #2 (permalink)
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Location: Romania
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OS: Win XP SP3; Vista Ultimate 32 bit

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Re: Diagnosing no boot computer

Did you try to clear the CMOS after changing to the older P4 processor ?
If you did not, please give it a try.
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Old 05-09-2008, 04:17 PM   #3 (permalink)
dai
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Re: Diagnosing no boot computer

have you connected the aux power plug to the m/board
http://www.newegg.com/Product/Produc...corsair%2b650w
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