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Bad Motherboard or CPU or PSU

Forum Motherboards & Memory : Asus - Bad Motherboard or CPU or PSU

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matchan   08-31-2008 at 07:36:43 AM

I have a stock Dell dimension 4700 pc. yesterday, i tried to update the bios (from xp) and after that the system froze, would not start, gave me 5 beeps.
i thought that the MB was fried and bought a new P5-GC-MX/1333. Plugged in the Pentium 4 2.8 ghz w HT CPU - just 1 long beep and the system would not start. next bought a core 2 duo cpu, thinking processor was dead too. but no, same result. even psu's fan does not run if any cpu is plugged into the main board.

do i have a bad board or is it because of my 305w psu? the asus manual recommends a min of 350w. could this be?

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englandr753   08-31-2008 at 07:59:29 AM
- 0 +

It sounds like your BIOS update didnt take and it rendered the motherboard usueless. You could send it back to dell to get it reflashed but it would be as cost effective to get a new one like you did.

I think the power supply may be inadequate for the new motherboard. Are you also trying to run a video card? If so, which one?

Get this power supply:
http://www.newegg.com/Product/Prod [...] 6817139003

or if u have a few more bucks and are running a higher end video card:
http://www.newegg.com/Product/Prod [...] 6817139004

Reply to englandr753
matchan   08-31-2008 at 04:24:30 PM
- 0 +

im using the onboard video card

Reply to matchan
Proximon   08-31-2008 at 05:32:00 PM
- 0 +

Your PSU could be the problem. Or, the board might not be recognizing your RAM.... but it does sound like the PSU. The suggested Corsair PSUs are both excellent.

If you need to get by with less:
http://www.newegg.com/Product/Prod [...] 6817371005
is sufficient... but those others would be a better buy.

Reply to Proximon
PsyKhiqZero   08-31-2008 at 05:50:44 PM
- 0 +

The last dell I (dell dimension 8200) had used a special power supply, even though it used the standard atx 20 pin connector. The wires were basically rearranged. That could explain why the new power supply changed the beep code you got from the mobo.

I agree that it sounds like your mobo is fubar, also agreed you should just buy a new mobo. But the bios on alot of motherboards is removable and can be replaced with a new one. Finding a match can be hard and removing the bios requires a simple special tool.

Here is a place i found. I never used it myself but it's a start.
http://www.bioschip.com

Message quoted 1 times
Reply to PsyKhiqZero
DellUser1   08-31-2008 at 06:12:51 PM
- 0 +

PsyKhiqZero wrote :

The last dell I (dell dimension 8200) had used a special power supply, even though it used the standard atx 20 pin connector. The wires were basically rearranged. That could explain why the new power supply changed the beep code you got from the mobo.


The only thing "special" about the 250 watt psu in the D8200 was the fact that it had no switch, other than that it's a standard ATX psu with no "rearranged" wire's, and the 305w is the same.

Message quoted 1 times
------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to DellUser1

PsyKhiqZero   08-31-2008 at 06:19:32 PM
- 0 +

DellUser1 wrote :

The only thing "special" about the 250 watt psu in the D8200 was the fact that it had no switch, other than that it's a standard ATX psu with no "rearranged" wire's, and the 305w is the same.



Well I definately don't wish to debate this issue with someone who calls themselves delluser1 lol. I will just say that i could never get mine to post with any thing but the psu it came with. also the working dell PSU could never pass my psu tester. The tester worked fine with other PSU's I owned at the time. It's been awhile though.

Reply to PsyKhiqZero
venkat karthik   08-31-2008 at 06:32:56 PM
- 0 +

The normal procedure is to power up the PC system, watch for error message on the monitor screen and listen to the PC beep tone. A single beep during boot-up process is normal and does not indicate a failure if the system continues to boot-up.

1 Beep tone - DRAM refresh failure
2 Beep tone - DRAM Parity failure
3 Beep tone - Base 64K RAM failure
4 Beep tone - System timer error
5 Beep tone - CPU failure
6 Beep tone - Keyboard controller error
7 Beep tone - Virtual mode error
8 Beep tone - Display memory read/write error
9 Beep tone - ROM BIOS checksum error
10 Beep tone - CMOS register read/write error
11 Beep tone - Cache memory error
Continous Beep tone - Memory or Video memory failures.

check the tenth point in this page
http://www.zionram.com/cfaqs.html

Reply to venkat karthik
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