Question about Dell Dimension 8400 PC Desktop

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No power supply to the tower - Dell Dimension 8400 PC Desktop

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  • evasiveltk May 11, 2010

    ok well do you have one or do u need to buy it or>?

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Check the power supply it may not be pluged in all the way on the inside of the computer. also there is a 115/210 Volt switch make sure that is set to 115V


it may need to be replaced.

-tg

Posted on Jan 09, 2009

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I want to change out/upgrade the motherboard. What will fit into my existing tower?


Buy a new towercase that is compatible with the new motherboard. You may need a more powerful power supply which should come with a new tower case but check it does.
It will be hard to assess if the previous tower has a powerful enough compatible power supply and what size motherboard it is rated to hold..

Oct 19, 2015 | Gateway PC Desktops

1 Answer

Optiplex replace power supply


Hello Jacey,
Below are the system specs for the power supplies that are installed in each chassis of the GX280 system. You can call the Dell Spare Parts
Department at 1-877-717-3355 or click the link below.

Spare Parts Department

Wattage small form-factor computer: 160 W
small desktop computer: 210 W
small mini-tower computer with processor speeds of 3.2 GHz or lower: 250 W
small mini-tower computer with processor speeds of 3.4 GHz or higher: 305 W Heat dissipation small form-factor computer: 546 BTU/hr
small desktop computer: 717 BTU/hr
small mini-tower computer with processor speeds of 3.2 GHz or lower: 853 BTU/hr
small mini-tower computer with processor speeds of 3.4 GHz or higher: 1041 BTU/hr Voltage fixed-voltage power supply-110 V at 50/60 Hz manual selection and auto-sensing power supplies-90 to 135 V at 50/60 Hz; 180 to 265 V at 50/60 Hz; 100 V at 50/60 Hz for Japanese computers

Thank You,
Dell-Jesse L
Dell Social Media and Communities

Mar 23, 2013 | Dell OptiPlex GX280 PC Desktop

1 Answer

Hi. Have just turned on my HP Pavillion m8000 and the screen and it does nothing. The screen is getting no signal and even though the computer is on, it isn't starting up as usual. Help!!! I've checked all...


hi

it could be that your power supply (from tower) is not working -- does the fan blow out air ?
if not replace the power supply. If the power supply is on but no video on screen showing , it could be your mainboard inside the tower, thats if no noise is coming from the tower.

what were the circumstances when you worked on he computer ? was it plugged in overnight while running or was the power cord attached to tower while plugged into wall ? if so, it mnay have experienced a power surge and blew the mainboard.. too much current going to tower could blow the power supply, causing the mainboard to have received excess current

go to this link and rewview some infromation about your PC issue(s)

http://h20000.www2.hp.com/bizsupport/TechSupport/SupportTaskIndex.jsp?lang=en&cc=us&prodTypeId=12454&prodSeriesId=3328509&taskId=110


let me know what lse i can do -- i await your reply to some of the questions above

regards.

Dec 16, 2010 | HP PC Desktops

1 Answer

No power to tower. Pressing power on button on front of tower fails. Is there some kind of reset or fuse to look for?


There is no easy fuse. Did the computer get turned off at the back? Some power supplies have a switch on the top of the tower. Did the power strip get turned off? Have you verified that the outlet has power?
If this is not the problem, it sounds like a blown power supply. Do you have any lights on the system? If not, take the tower to a local computer shop and they can very quickly diagnose a failed power supply.

Sep 07, 2010 | Dell Dimension 4550 PC Desktop

2 Answers

Dell tower desktop Dimension 5100. Tower makes whistling sound.


sounds like it could be a bearing in your hard drive. is this problem constant? If so, I would open up the tower and disconnect the hard drive and then power up the tower again. if the sound goes away--you need to get a new hard drive. If not, you could have some dust bunnies in your cooling fan.

Jun 15, 2009 | Dell Dimension 5100 (D51L1) PC Desktop

1 Answer

My tower will not turn on


It sounds as if your power supply is having issues, I would recommend replacing it.  If your good with computers, you can test the power supply: 1. Open the computer tower. 2. Find the main plug which runs from the power supply to the motherboard. 3. There should be 16 wires. 4. Find the green wire, short it to the black wire with a paper clip. 5. If the computer seems to turn on, its your motherboard having issues and you will probably need a new computer.  If it does not turn on, your power supply has failed, and you need to replace it.
I hope this helps!

Apr 03, 2009 | Acer Aspire L100 PC Desktop

1 Answer

Tower not coming on


Check the power supply, if you don't hear any whir at all from the fan, power supply needs to be replaced.

Jan 04, 2009 | PC Desktops

2 Answers

My tower wont come on


Can you be more specific.. as what you mean by your tower won't come up?... do you mean that it won't power up? if so than and if you haven't checked the power cable, please do so and if the power cable and the fuse are good than please tell me what execatly happened when you last used your tower.

Thank you, I look forward in hearing from you.

Philip

Dec 01, 2008 | PC Desktops

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