Dell Dimension 8400 PC Desktop Logo
Posted on Jun 03, 2009
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Dell dimension 8400 beeps 6 times monitor dosen't turn on

When i try to start my dell dimencion 8400 it beeps 6 times and the monitor dosen't show anything, i know the problem is the cpu because the monitor works fine with my laptop.

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Below is a link to the beep and light codes for a Dimension 8400. Check your codes and reply back if you need further assistance.

http://support.dell.com/support/edocs/systems/dim8400/SM/adtshoot.htm

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It's a bad cpu if the fan's not running.if it is runing it's a bad graphics card, it's a common dell issue. you need new hardware. i suggest getting a used peice of hardware, it's cheep and effective for when the slot goes out eventually. save up for a new computer unfortunately. unplug your computer from the wall during storrms and get a surge protector incase of brownouts. your computer should have a happy life.

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Dell dimension 8400 won't turn on

Sounds like you might have a Bad Processor, Take it to a shop, don't tryh to fix this one yourself
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I get 1 beeb followed by 3 beebs followed by 2 beebs then nothng happens dell diemension 8400

Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of beeps, called a beep code, identifies a problem. One possible beep code (code 1-3) consists of one beep, a burst of three beeps. This beep code tells you that the computer encountered a memory problem
you need to reseat your memmry modules just remove them and place them back in the same or a diffrant slot this cold be loose connection by connecting them again you fix it
------------------------------------------------------------ if you dnt know abt it see this it will help you

http://support.dell.com/support/edocs/systems/dim8400/sm/parts.htm#wp1052406
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Dell dimension 8400 will not start.

no man try to take out the modem ( last pci slot on the botom of the board) and see if you have any luck if not you going to need a new motherboard thanks and good luck
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Monitor blinks on and off.

Try this, open your computer case and look at the monitor connector thing. Is it plugged in correctly? If not, plug it in. If it is, buy a new monitor connector, they are somewhat cheap. You can install it by yourself, all you need is a screwdriver.
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Dell Dimension 8400 will not boot period

if short beeps...cause are the memory module

remove and clean the memory module contact point using rubber eraser
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Dell Dimension 8400 PC won't boot

http://www.computerhope.com/beep.htm

Here's a list of Boot Codes .....start with one stick of Ram
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