Forum Thread

dell desktop 3 beeps

fpsfreak 1,027 47 April 3, 2016 at 08:19 PM
so my brother's dell desktop doesnt boot to anything except a blank screen on the monitor.i changed sata cables from the hard drive and nothing.when connected to monitor the power button is orange.when connected to the samsung tv the power button turns white then orange.then it does 3 beeps.any ideas?

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#2
Could be the memory, try swapping around the memory / re seating it.
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#3
Quote from fpsfreak View Post :
so my brother's dell desktop doesnt boot to anything except a blank screen on the monitor.i changed sata cables from the hard drive and nothing.when connected to monitor the power button is orange.when connected to the samsung tv the power button turns white then orange.then it does 3 beeps.any ideas?
What's the model?

Dell used to have a nice troubleshooting section in their manuals that included beep codes, diagnostic leds, and troubleshooting steps but not anymore... Frown
These may still be useful but could be out of date:
http://en.community.dell.com/supp...stic-chart
http://www.dell.com/support/Artic...7E10F15/en

Based on 3 beeps (and the link above) the first things I'd try are:
-disconnect all usb devices (keyboard, etc) and try to boot
-replace the coin cell cmos battery / remove and test the voltage of the current battery.
Unfortunately, 3 beeps may indicate motherboard failure. Maybe you had a static discharge?

Since you were messing with sata devices, you could try disconnecting all sata devices from the motherboard. See if it POSTs, it won't boot you'd get a message like operating system not found.

re-seating ram isn't a bad idea. Make sure you didn't bump/disconnect anything else. Make sure all the fans are spinning.
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Last edited by jkee April 3, 2016 at 09:31 PM
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#4
Check for any swollen/bulging/leaking capacitors on the motherboard. Just one bad cap can cause the power supply voltages to sag enough to cause problems.
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Quote from serra View Post :
stoopid serra.
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#5
I don't want to get too excited but it looks like it's running!! Smilie I replaced the cmos battery and reseated the ram.bingo it boots normally now.hope it stays like that.thanks to everybody. *hugs* Wink
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#6
Quote from fpsfreak View Post :
I don't want to get too excited but it looks like it's running!! Smilie I replaced the cmos battery and reseated the ram.bingo it boots normally now.hope it stays like that.thanks to everybody. *hugs* Wink
Next time post a model number so we can better help find that specific models beep codes.
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Vague questions receive vague answers . . . . . .
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#8
Quote from komondor View Post :
For info Beep code info here

http://www.dell.com/support/artic...N293445/no

more info
http://www.dell.com/support/artic...N284978/en
Good find, that one's actually current (though the info's largely the same). I wonder why that page didn't come up when i used dell's search and google.
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#9
That is my skill, I tend to put in the right words to get the results I need, but not always.
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