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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1 Answer

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..

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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
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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

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Mar 23, 2013 | Dell OptiPlex GX280 PC Desktop

1 Answer

I am looking for a schematic for a Dell Optiplex GX280 power supply. The supply is model HP-U2106F3.


I just replaced my GX280 power supply (mini-tower) with the following 400W for $30.

http://www.cputopia.com/hp-400w-dell-optiplex-gx280-mini-tower.html

The only place I can think you will find an actual schematic for the PSU is from the manufacturer.

Feb 13, 2011 | Hi-Pro Refurbished HIPRO POWER SUPPLY FOR...

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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 Computers & Internet

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

1 Answer

Dell optiplex 210l mini-tower video card upgrade


Before upgrading a video card, it's strongly recommended to check the wattage specification of the power supply unit. If the installed power supply unit can cater the need of the newly installed video card then it can be used normally.

You may refer to the user manual of the Computer to check the wattage specification or the Power supply unit(PSU) or directly open the tower to check for the printed value on the PSU itself.

Oct 01, 2009 | ASUS Computers & Internet

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What is Mini Tower ATX Cabinet


A mini tower is a PC desktop case which is approx half the height of a full size desktop tower case. ATX probably refers to a ATX switch mode power supply.

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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

NEW ULTA V Series 350w power supply .


yes that fan should plug into the 4 pin MOLEX off the PSU.
Hope this helps

Jan 05, 2008 | Computers & Internet

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