No Power Up..

J

johnjohngc

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After having the mains electricity turned back on my DELL DIMENSION 4550 does not want to start (no green light; no life) :wall:
Facts of the case:
1. The computer was not on when the mains was turned off, but he plug was still conected.
2. I have checked all external power supplies to the machine (sockets and cables)
3. I have also disconnected and reconnected the contacts to the mother board. 4. Got this far with help from DELL support before he vanished.

I would be very grateful if there is someone who can help me with this,

John:confused:
 
Hiya John, sorry for maybe stating the obvious but have you checked the internal plug fuse?

Do you have fuses in the plugs or are they just 2pins?

Try a different lead maybe?

Try the same lead in your monitor see if that powers up?

If it does it maybe that your PSU may need replacing. Try connecting a different PSU to the motherboard

Have you added any new hardware recently? HDD, DVD-Rom or a new graphics card?

Let us know ;)
 
Hi there, and thank-you for your reply,

I've basically confirmed that there are no problems with the leads (I live in Sweden where they have no internal fuses) and I haven't touched the machine for months so I guess it must be something in the computer itself. I had hoped to find some from of internal trip switch that could be reset, but no.

If it is the PSU what would be the cost of replacing it? I had been thinking about replacing the computer soon so now might be as good as time as any, maybe.

Very grateful for your help and time,

John.:)
 
Hiya,

Basically it is a

Dell Dimension 4550
Windows XP (reinstalled 5 months ago)
30GB Hard drive
256 MB RAM
64MB GeForce Graphic MX420
DVD/CDRW Combo Drive
...other than that is isn't anything too special, but as it won't even turn on it isn't special at all.

Cheers for your help, btw...

John.
 
and you say you have not used it for a while?

can you not source a PSU from someone to try in the system?

you dont have to install it completely just try it on the main board without and hardware except GFX card

where was it stored?

can you see and corrosion?

these are all silly questions i know, it could be a simpe case of dropping the BIOS and resetting it or removing a drive and replacing it
 
If it is the PSU what would be the cost of replacing it? I had been thinking about replacing the computer soon so now might be as good as time as any, maybe.
Click to expand...
I too suspect the PSU as the potential problem ... it may surprise you to know that the failure rate of a PSU is in actually turning it off.


Your system is very old, although you should be able to get a replacement PSU it will have to be from a Dell dealer ... your MB/PSU fall under the Dell bad practice of NOT being a std design. Using a std replacement PSU may 'blow' your MB because the power cables were different. I could be wrong, Dell have changed that stupid practice ... but I will need some details of the MB & PSU that you will/may not be able to give me.

I suggest saving for a newer spec system. :thumb:


:user:
 
Oh well, it sounds like the PSU is the problem.

Thank-you all for your time and help,

John.

P.S. I'm sure it is written about all over the place but Vista vs. XP vs. Mac....who would win??.....(I'm just a simple user, but not a simple man!)
 
johnjohngc said:
P.S. I'm sure it is written about all over the place but Vista vs. XP vs. Mac....who would win??.....(I'm just a simple user, but not a simple man!)
Click to expand...
Linux!!

:lol:


They ALL have there strengths & weakness's ... really depends on what you want your "computer" to do for you. :thumb:


:user:
 
Vista is a shiny version of XP.

Apple is better, but not really compatible with anything and requires all proprietry parts.

Linux is best for anyone who doesn't play games
nod.gif
 
try this

this may sound really wild but trust me it worked for me on numerous occasions

if you remove the power cord from the pc
using your finger touch all three terminals in the pc power socket
dont worry you wont get a shock or feel anything for that matter
this will absorb any static build up in the psu
now replace the power cable and power up the pc
like i said it sounds wild but it usually works
 
WTF are you for real even suggesting that on an open forum?

Yes PSU's are protected against residual current feedback however the capacitors within the PSU are still charged and can stay charged for hours no matter what kind of diodes are in the way if you touch all 3 termiinals at the same time it is still possible to get a belt


I wont suggest doing this ever!!!

Be warned!
 
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