Having problems with your Dell Dimension 8250 PC Desktop ?

I was unable to power up my 8250 and I have oirdered a new power supply. Is this difficult to install and is there a set process to follow?

Answers :

Not difficult at all.

1) Work on a table. Computer unplugged from power, computer case open. TOUCH the metal frame of the computer case. (Not shouting)

[Your body carries Static electricity. Static will fry out the hardware components inside a computer.

Touching the metal frame alleviates the Static. If you get up for any reason in the middle of this, when you come back, TOUCH the metal frame again.

Computer unplugged from power you're safe.
Touch the metal frame BEFORE reaching inside the computer, your computer is safe]

2) To open the computer case:


The above link is to Dell Support>Dimension 8250>Manuals>Service Manual.

This way I can tell you, and show you.
At first glance you'll note this solution is fairly lengthy.
Reasoning is, that I detail out my solutions, so that it is if I am sitting right next to you, and guiding you.

On the main menu, left-click on -
Adding and Replacing Parts

Now left-click on -
Opening the Computer Cover.

All cables removed from your computer, including the power cable.
If you are unsure of where they go, now is the time to make yourself a chart, to refer back to later.

I advise laying a lint-free clean towel on your table, before you lay the computer on it's right side. Keeps the table from being scratched, and your computer case.

As noted the computer is laid down on it's right side.
As you can see there is an elliptical button you press in, on the top, and on the bottom, at the same time.
These are Cover Release buttons.

The left side of the case swings up to the open position.
You should be able to open the left side of the computer case, to a straight up position.

There is one more thing I wish you to do.
Towards the front of the computer, and on the motherboard, is a Front Panel Switch connector.

This connector on the motherboard, is located towards the outside of the motherboard, and right next to the connector for your harddrive's flat ribbon cable. (FRT PNL )

This connector is where all the wires attach from the front cover, (Panel), of your computer. The Power On switch, Harddrive activity lamp, Power On lamp, and so on.

I would like you to take the time now, to draw yourself a chart as to where each wire goes on the motherboard.
Include the color of the insulation of the wires, and if they have any stripes on them.

Make the chart so it shows where they connect on the connector for the motherboard. (FRT PNL)

Yes, I agree, it is a pain.
However, this advice is given in case any of those wires, become unplugged by accident.
There is no ready available information, to tell you how to plug them back in again.
You have this information at your fingertips, right now.

3) Now scroll back up to the top of the page, and this time click on - Power Supply.

Here the information is not very concise.
The statement - 'Then disconnect the DC power cables from the system board and drives'

This means you will be disconnecting all of the power cables leading out of the power supply, that go to all of the hardware components inside the computer.

[System board = Motherboard. Drives = CD/DVD drive/s, and the Harddrive]

I will lead you through each power cable you need to disconnect, and the method of releasing connectors that use a locking device.

A) 20-pin ATX main power cable. Located on the outside edge of the motherboard, to the right of ram memory slot 4.
White in color. 20 socket holes. May have P1 on the connector.

This is a male connector with many wires, that plugs into the female connector on the motherboard.
On the side of the male connector is a locking device.
It's a plastic locking tab that pivots, and has a hook shape on the end.

Squeeze in the top of this locking tab with your fingers, and thumb.
This action pivots the locking tab, and pulls the hook end out of the female connector.

While keeping this lock tab depressed, gently rock the male connector side to side, as you pull up, and out.
Pull only on the male connector, and not the wires.

This link gives you more reference to the 20-pin ATX main power cable connector. Shows photos in great detail,


Note the female connector, shown by itself in the photo all the way to the left, and the lock tab that protrudes from it.
This is what the locking tab on the male connector, catches.

The middle photo shows a little more detail of that locking tab on the male connector, and the male connector itself.

B) Now scroll all the way up this page.
Left-click on the photo that has - 4-pin Peripheral power cable.
(Photo in middle of the top of the page. White connector with four socket holes)

This type of power cable connector will go to your,
Harddrive, and CD/DVD drive/s.

{Click on - Technical Overview in the main menu, to get a better idea of the above statement}

(P3, P5, P6, P8, and P9. Doesn't matter in reality which one you plug in where.
All have a Yellow wire, Red wire, and two Black wires.
When you go to install the new power supply, you can use ANY Peripheral power cable you wish, to any device that uses it. {Your optical drive/s, and your Harddrive)

There is no locking device. The connector is gently wiggled, and pulled straight out.
Sometimes, these connectors are Real Tough to pull out!

(I've had two, in my 20+ years of working on computers, that I could have sworn a Gorilla stuck them in!
Took an Unprofessional method of using pliers on the connector itself, and finesse, to remove them.
Hopefully the same primate didn't install yours)

Note that the Peripheral power cable connector, has two rounded corners.
This is to align it properly, when installing into a device.

Viewing the back of your CD/DVD drive/s, the Peripheral power cable plugs in on the Left side.
(The right side is for a small Audio cable. If you have two optical drives, only one has an Audio cable plugged into it)

Viewing the back of your Harddrive, the Peripheral power cable plugs into the Right side.

C) Scroll all the way to the top of the page. Click on the heading -
Floppy drive power cable
This is a 4-pin Molex connector also, just like the Peripheral power cable connector, but smaller.
(P7 on connector)

It has a flattened out T shape. Only goes in one way into your Floppy Drive.
One, the pins that stick out of the Floppy Drive that this connector goes on, are very TINY.
They are EASILY bent.

Use care, as you go to align the Floppy drive power cable connector, when installing.
Make sure the socket holes line up properly, with the pins on the Floppy Drive.

Two, the pins on the Floppy Drive are SHARP!
You can easily stick yourself!

D) Scroll up to the top of the page one last time.
Click on -
4-pin ATX +12 volt power cable

This is power for your Processor. It MUST be plugged in. Your new power supply will have this power cable.
(This power cable is used for Intel Pentium 4 processors, and above)

This power cable plugs into the motherboard. Has a locking tab on the side of it. Should plug into a small square connector on the motherboard, close to the Processor socket.

(Two Yellow wires, and two Black wires, go into this connector)

Have you purchased a power supply yet, or would you like a recommendation?

One last thing I should bring up.

In the past, Dell had a habit of changing around the wires, in the 20-pin ATX main power cable connector.
(P1 connector)

The color of the insulation on the wires, designates what voltage the wires are using.
(Ground wires are Black, and have no voltage)

1) Yellow is 12 Volts
2) Red is 5 Volts
3) Orange is 3.3 Volts
4) Any Black wire is a Ground wire. (ANY)
5) Green is the Soft Power On wire

Look at the 20-pin ATX main power cable of your new power supply, and compare the color code of the wires, to the Dell's 20-pin main power cable connector.

View the side of the connector that has the locking tab, to orient your view.

Make SURE, the colors of the wires are the SAME, that go into each individual socket hole, on that connector.

If NOT, you will burn up your computer the first time you push the Power On button.
Repair Help & Product Troubleshooting for Dell Dimension 8250 PC Desktop

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

New HDD Install Prob

Basic Troubleshooting Tips after Installing a New Hard DriveBased on Seagate IDE hard drives.If you have installed your drive and it does not function properly, perform the following basic checks:Additional Troubleshooting Tip ... PC Desktops

I was unable to power up my 8250 and I have oirdered a new power supply. Is this difficult to install and is there a set process to follow?

Not difficult at all.1) Work on a table. Computer unplugged from power, computer case open. TOUCH the metal frame of the computer case. (Not shouting)[Your body carries Static electricity. Static will fry out the hardware comp ... Dell Dimension 8250 PC Desktop

I get a 1-3-3-1 error code beep on Toshiba Satellite M35x-S109

Well it sounds to me like it is your actual install, I suggest you that you do a factory restore, \015\012Toshiba laptops from mid 2007 onwards dont have a recovery disc supplied with a purchase of a laptop. Instead, Toshiba has added a ... Toshiba Satellite M35X-S109 Notebook

Installation of a 2nd hard drive steps & tips

Step 1: Back up and scout around\015\012 First,\015\012back up your critical files (don't forget your Outlook .PST archive) to\015\012optical discs, an external drive, or online storage. Then check whether\015\012a CD comes with t ... HP Pavilion a1410n (ER890AA) PC Desktop

My laptop has power but will not boot up. Just

Try start up in Safe Mode press F8. Choose Safe Mode, when at the choice window, to select either Safe Mode Desktop, OR System Restore, chooses system restore and choose a time before you had the "Problem" and follow instructions. if that doesn't wor ... Toshiba Satellite 2455-S305 Notebook

Installed a new Optical Drive and require assistance in the wiring

What kind of optical drive? Is this a CD, DVD?, Blue ray,or an opto-ferro-magnetic floppy?Generally:1) External drive: ============ a) just power it up and connect it to the PC using an USB or ... PC Desktops

Can't set up network w linksys modem

Video card:Your computer has an integrated video card but has a "PCI Express" expansion slot for an upgrade. After the upgrade you will be able to play most games without the choppy frame rate...depending on what card you buy. Since ... PC Desktops

Computer has frozen on windows logo

1) Which version of Windows ? For the following discussion I am assuming it is 2000, XP or higher. You may also want to print this, it's long.2) Is this this the low resolution Windows logo on the black scre ... Fujitsu Siemens SCALEO 600 (FSP:83C005617) PC Desktop

I need help! I'm a computer novice so please excuse my ignorance. I recently bought an Acer Aspire M1100 desktop (Acer Aspire AM1100-B1410A Refurbished AMD Desktop PC - AMD Athlon X2 4000 2 .1GHz, 2GB DDR2, 320GB SATA2, DVD±RW, Vista Home Premium). Acer told me that these are the specs for the motherboard: ACER F690GVM ATI RS690C SB600 MARVELL 88E8056. I want to upgrade my PC and want to install; AOPEN 20X DVD Rewriter IDE Interface - 20x DVD±R, 12x DVD-RAM, 8x DVD R, 6x DVD-R, 8x DVD±R

Here is what you will need to complete this project: \015\012\015\012Your new DVD burner with the included screws and cable. \015\012A phillips screwdriver. \015\012your new ha ... Acer PC Desktops

When I am playing XENO Assault II, it crashes and says virtual Memory error, I have a 256MB ATI Radeon X1300 Pro video card, and 2 gigs of memory. I was thinking about upgrading my processor to a Intel® CoreTM 2 Duo Processor, what do you think? It's a great computer, I just want to have peak performance.

Virtual memory is actually part of a computer's physical memory that\015\012comes in the form of memory chips or RAMs. So what right? Well, it is a\015\012necessary evil and in order for your computer to run numerous programs\015\012simultaneously (a ... Dell Dimension E520 PC Desktop

Toshiba 5205-s503 won't start up

In my 15 year career in electronics, among other companies, I have most notably worked for United Technologies as Test Engineering Technician and as an Electronic Failure Analysis Technician for Jabil (Circuit.) I am unemployed due to US electronics ... Toshiba Satellite 5205-S503 Notebook

No Sata, intermitantly just locks up and reboots on it's own.

Random computer reboots can be difficult to diagnose. Try the following:\015\0121) Check event viewer for messages that could be related. (Control Panel >Administrative Tools >Event Viewer) These could point you in the right direction. ... PC Desktops

My d530 minitower powers off unexpectedly and red lights starts to blink on System's LED//

Hi Kindly let me know how many times the red light blinks \015\012\015\012\015\012\015\012Condition\015\012\015\012Code\015\012\015\012Service Actions\015\012\015\012\015\012\015\012\015\012\015\012Process ... HP Compaq d530 Convertible Minitower PC Desktop

Very slow computer

A slow computer can be caused by a multitude of reasons, but it is not due to your Internet speed. Typically the most popular reasons are:1. Too many things running in the background (including viruses, malware, and spyware).2. A fr ... HP Pavilion HP A1000Y Desktop PC w/ Intel Celeron D 335 2.8GHz processor 2.66GHz (565953)

Backlight only stays on for a few seconds on compaq c700 that is only a year old

When the external AC power supply is unplugged from a notebook, the LCD display will dim to conserve on battery power. During times of heavy battery power operation; such as during the startup or boot process, the display may be very dim or barely re ... PC Desktops

Directions for setup tascam 1641 audio interface, with g5 os 10.5.6 processor name: PowerPC 970 (2.2)

Hi Dear we are provide some of the link for "TASCAM 1641 AUDIO INTERFACE "\015\012\015\012\015\012http://www.tascam.com/details;9,15, ... PC Desktops

USB not recognized

Dear superamy\015\012\015\012Hello, your problem is likely to be BIOS/CMOS related, and more than certainly will invole the need to re-install your operative system. The first thing you should be considering about this task, is the need t ... IBM ThinkPad T40p 2373 Notebook

Laptop turns on and off, no display

This could be caused by a couple of causes, the most popular are Malware attacks and Overheating issues with the processor. Just remember though that there could be permanent damage to the motherboard and no fix except replacement is going to work. I ... HP Pavilion dv6000z Notebook

The monitor turns off and on repeatedly.

There are lots of reasons why it can shutdown, but happerlly none should be serious. It may be that the B+ or Power supply is too high, look for a pot near the power supply and try turning it down a bit. Also the x-ray protection may be too high, loo ... ViewSonic VE710b 17" Flat Panel LCD Monitor

Does not power up

It's a dreadful way to start a day - you press the power button on your computer and nothing happens. Do not fear because all may not be lost! Follow these simple steps to determine why your computer won't turn on. Note: It is very import ... IBM ThinkPad T22 2647 Notebook

Monitor not coming on - Packard Bell Easynote R4650

It's a dreadful way to start a day - you press the power button on your computer and nothing happens. Do not fear because all may not be lost! Follow these simple steps to determine why your computer won't turn on. Note: It is very import ... HP Pavilion a305w (DM181AR) PC Desktop

I cannot connect wirelessy to internet on my compaq pressario v6000. The orange wireless light is on and the internet connectivity icons in the task bar have a red cross on them. I have tried all options to connect to internet this way but cant and i cant set up a network.

Part 1: Before You Start\015\012loadTOCNode(2, 'summary');\015\012You need the following: \015\012\015\012\015\012\015\012•\015\012A broadband connection to the Internet and the appropriate hardware. For example, cable-based ... PC Desktops

How many hard frives can be installed

You can put as many drives as you can fit as long as you have the cables and connection. Usually 4 is the max in a computer, but you can by a SCSI IDE card and add even more. The biggest problem is to make sure that the jumpers are set to slave on ... Dell Dimension 4600 PC Desktop

I am trying to reinstall windows on my toshiba satellite A305-S6898. When i put the recovery CD in and go trough all the steps it takes forever to copy files, in window it says '' Copying Files. Please Wait.'' and it just goes on and on. Is it normal? is there a problem with my recovery CD? Can i do anything to solve this problem?

It may take some time an hour or so to do all that? try to be patient. before you give up and we try something else. Also read below, \015\012\015\012Toshiba laptops from mid 2007 onwards dont have a recovery disc supplied with a purchase of a lapt ... PC Laptops

Blue screen when I close the top of my laptop or shut it off

This error relates to video drivers. to fix this. restart your computer and as soon as you see dell keep tapping the F8 key in the top row to get advanced boot options. and then select "Enable VGA Mode" and press enter 2 times. then the computer shou ... Dell Inspiron 6400 Notebook
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || electronic-servicing.com || Terms of Use || Contact || Privacy Policy
Load time: 0.8867 seconds