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Posted September 16, 2013 at 8:32PM

Hi all i have just tried to start my Dell Dimension E520 it will not boot and the fan is at full pelt all the time, no beeps and nothing on the screen. The diognostic light show steady green on 134 nothing on 2, looked at the diognostic light sequence in the service manual and that sequence is not listed. Have taken out the memory modules started with no memory again no beeps and the light are the same, unpluged all drives/card reader agin all the same. Shut the pc down on friday and it had been working fine. Vista 32 bit I gig ram Cant remember of hand about CPU. Appreciate your thoughts.

Fruit Bat /\0/\

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Posted September 16, 2013 at 9:17PM

remake all motherboard connections and retry

or try another psu

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Posted Yesterday at 8:42AM

Morning Fruit Bat /\0/\ sorry for the late responce, will try another PSU its not a Dell PSU would it be ok to use as i have read that Dell change connectors/pins so that you can only use Dell replacements.? Thanks

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Posted Yesterday at 8:44AM

I was thinking maybe the boot order had changed but even then it would have shown something.

Maybe try a new CMOS battery to see if that helps.

I take it the computer is about 6 years old so worth a try if nothing else works.

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Posted Yesterday at 8:50AM

Thanks Jock1e, noted.

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Posted Yesterday at 11:53AM

Hi again well done as adviced changed the PSU for known working one, changed CMOS battery, dissconected everything 1 at a time untill only ram installed no change lights showing 134 fan still at full bore, took out the ram one by one untill just the PSU and same problem took out graphics card still the same no beeps no post nothing on screen, not looking good is it.

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Posted Yesterday at 12:13PM

What is the first boot in the Bios if you can open that.

You have tried most things only leaves the Hard drive or the motherboard.

I take it you mean that it is the CPU fan that is on full boar also the PSU fan is also working.

Wild guess but could it be that it is your monitor that is not working. probably not but as I mentioned everything else I thought that I would throw that one in as well.

By Changing the CMOS Battery it may have changed the first boot.

Fruit Bat /\0/\

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Posted Yesterday at 2:06PM

According to enter link description here the only reference to 1 3 4 I can find, is to reseat the graphics card but you seem to have already tried that.

Remove all power connections and CMOS battery hold power button for thirty seconds, refit battery and power connections and attempt a reboot.

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Posted Yesterday at 3:35PM

Hi Fruit Bat /\0/\ ,Jock1e thanks for your input on this, after a number of dissasembly and refits with no joy i tried once again the fan went at full oelt as before but this time it came to a stop and i thought maybe were getting somewhere but it has stopped completly now and nothing happens thier is no light on the m/b and no diognostics lights and allso a sweet smell coming out of the case with a lot of heat allso think its time to let this one go. The hard drive is accessible from a caddy so no loss of the music/photos i used the PC for. Thanks again for your help.

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Posted Yesterday at 6:51PM

Not looking good Sparkly.

Have had a look inside to see where the problem was. Maybe be able to pick up a 2nd hand Motherboard from e-bay if it looks like that is where the problem started.

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