Question about Dell OptiPlex GX260 PC Desktop

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My hp dc 7600, stop to work and now don't power on. When I press the power button the computer start the fan cool and then turn off.

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  • 242 Answers

Big chance you've got a broken motherboard...
Maybe your CPU is broken...

Check your motherboard for 'swollen capacitors'.
Instead of flat, it will have a convex top.

You can also have someone who knows a bit more of computers look after it...

Posted on Mar 29, 2008

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Posted on Jan 02, 2017

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that computer case is not recommand for gaming adapters.

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Dell precision T3500 unable to initialize fan controller error


Step 1:
b> WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of ESD and its potential hazards Every computer comes with its own internal cooling system. Dell workstation desktops are no different. Your computer's cooling system consists of a heat sink and cooling fan. The function of the cooling fan is to regulate the temperature of your computer's processor. If the fan stops working your processor will overheat and cause damage to your motherboard. Fortunately, Dell desktops have a built-in alert system that tells you when your fan stops working.

Shut down your desktop computer. Disconnect the power cable from the computer's back panel. Then disconnect any external devices. Rotate the computer so the back panel is facing you. Attach an electrostatic discharge (ESD) strap to your wrist and its wire clip to the outer casing of the computer. Lay the computer tower on its left side. Press on the side panel release buttons situated on the top and bottom panels. Grasp the side panel and rotate it away from the computer until the internal contents of the computer are accessible. Locate the cooling fan duct near the center of the motherboard. Lift the duct off of the cooling fan so it is in the upright position. Disconnect the fan's power cable from the motherboard. Disengage and remove the retaining clips from each side of the cooling fan assembly. Lift the cooling fan out of the motherboard. Set it aside. Check you CPU make sure its securely seated and has thermal grease http://www.hardwaresecrets.com/article/Thermal-Compound-Roundup-February-2012/1490 Use a clean paper towel to wipe the excess thermal grease from the processor's surface. Apply a thin coat of thermal grease to the processor's surface using a cotton swab. This is important; if you skip this step, your processor will fry as soon as you power on your computer. Place the new cooling fan over the processor. Press down on each retaining clip until the cooling fan snaps into place. Connect the fan's cable to the motherboard. Place the air duct back over the cooling fan assembly. Rotate the side access panel downward over the computer's opening. Press down on the side access panel until it snaps into place. Place the computer vertically, and then reconnect all cables and devices to the computer.

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1 Answer

Compaq Presario SR1050NX Won't Turn On. . .


You're typing like you have been working tirelessly on the problem.
In fact there is no user name, lol!

Okay.....relax...........just ease back, and put your hands behind your head, and close your eyes.............think about clouds floating across in the sky.

Better?

Alright.

Your Power Supply is bad. Weak voltage power rail.
Replace it.

Don't think so? Cool.

That's what I'm here for. To teach.
Have a multimeter?

A) If ALL of the LED's were on they would use less than 1 Watt of power.

B) EACH fan uses 2 to 3 Watts of power.

C) A typical Processor can use 51 to 125 Watts of power. Just depends on what Processor it is.

(Older Intel Pentium I, II, and III, uses less than 51 Watts. Some older AMD's do also)

Primer:
You press the Power On button. The plastic assembly of the Power On button in turn presses against a Power On switch,

http://www.directron.com/atxswitch.html

The Power On switch is a Momentary Contact Switch.
When briefly closed the Power On switch completes a circuit.
The Soft Power On circuit.

When the Power Supply is plugged into power, there is a constant 5 Volts (DC) present.
The 5 Volt Standby power.

Pressing the Power On button redirects the 5 Volt Standby power, in the Power Supply. This 'excites' the Power Supply, and turns it on.
(Soft Power On circuit)

The first chipset (I.C.) to receive power is the BIOS chipset.
The Basic Input/Output System program is initialized.

BIOS looks to see what devices are installed, does a Ram Memory count, TURNS the Processor on, and hands the computer over to the Operating System.

(WinXP and Win7 are two examples of an O/S)

Primer over.

1) http://h10025.www1.hp.com/ewfrf/wc/product?cc=us&dlc=en&lang=en&lc=en&product=405454&

2) http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00595250&tmp_task=useCategory&cc=us&dlc=en&lang=en&lc=en&product=405454

FOLLOW Anti-Static Precautions

2a) http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&taskId=125&prodSeriesId=3433073&prodTypeId=12454&objectID=c01358034

(Yes, I know. Slightly different computer case. Principles still apply)

3) Don't think you will be hearing any BIOS Beep Codes, because there isn't enough power, lol!

For additional questions please post in a Comment.
Regards,
joecoolvette

(If Power Supply power were dynamite, your Power Supply wouldn't have enough power to bl-ow it's nose)

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My hp v75 monitor doesn't come on. All the lights


Make sure the VGA cable is properly inserted to your pc and monitor

Jun 29, 2012 | Computers & Internet

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I have an old hp v75 desktop that the monitor won't turn on all the lights are working, fan running, nothing wrong with the power supply, but when I press the power button it turns on, but the monitor...


First remove the vga cable from the desktop and see the monitor shows no conection if showing there is no problem with ur monitor if not change the monitor if showing conect the cable back to ur desk to vga port then check the ram remove the ram clean the surface with clean cloth then rub the print using an eraser then insert the ram and switch on if still no display change the ram if still not working remove the processor heat sink na clean th surface of the processor and the heat sink apply a thin layer of heatsink solvent or thermal paste fix the heat sink then restart the computer

Jun 29, 2012 | Computers & Internet

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A couple of weeks ago, my HP Pavilion a706n was working completely fine. Soon enough, the first error appeared. I could use it for a good 5-10 minutes and it would shut off by itself. When I attempted to...


If you have cleaned out the dust with compressed air, then I suggest you look at the processor cooling. Is the fan running up to speed? Is the heat sink tightly in place on the processor? Feel the fins of the processor heat sink when you power it up and if they get hot your processor is most likely over heating and shutting down. If all is well at the processor, check the power supply fan to see if it is running and the only other suggestion is to try another power supply. Dust is your worst enemy in a computer.

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I want to download audio driver for hp compaq dc 7600 on windows xp. What is the best driver for it? Thanks for help Maz


Audio drivers for this computer are here:

http://h20000.www2.hp.com/bizsupport/TechSupport/DriverDownload.jsp?prodNameId=472278&lang=en&cc=us&prodTypeId=12454&prodSeriesId=472276&taskId=135

Original drivers from HP

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I have a dc 7600 desktop when i install win 7 32 bit in to my computer my computer can not reboot and shows black screen can dc 7600 run win 7 or not please ans me


If your PC meets the minimum specifications ie 1Ghz CPU and 1Gb of Ram then it should be able to run Windows 7. You can try repairing the installation by following the instructions below :


  1. Place the Windows 7 installation disc in the disc drive, and then start the computer.
  2. Press a key when you are prompted.
  3. Select a language, a time, a currency, a keyboard or an input method, and then click Next.
  4. Click Repair your computer.
  5. Click the operating system that you want to repair, and then click Next.
  6. The computer should automatically give you an option for startup repair, if not proceed with step 7
  7. In the System Recovery Options dialog box, click Command Prompt.
  8. Type Bootrec.exe, and then press ENTER.
When the repair is done remove the Windows 7 disc and reboot the PC.

Hope that works for you.

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Power Green Light Flashing HP Desk Top PC m7250n


The 'cure' for this is to replace the power supply.
Inside your power supply are Electrolytic Capacitors. These are Filters for a power supply. To simplify detailing the construction of them, let's just say they are small aluminum 'cans', with an Electrolytic paste inside.

They are used to filter the incoming AC electricity from your house, (Business, school, whatever) They are also used to filter the DC electricity, coming out of the power supply. (Your computer power supply converts AC electricity, into DC electricity)

The one's we're going to concern ourselves with here, are the Output capacitors. The one's that filter raw DC into true DC.

When a capacitor (Of this type) starts failing, it's because Electrolytic paste is developing a gas inside. (Hydrogen gas) The gas expands, breaks a seal, and begins pushing the paste out. (Oozing out)
So much paste loss, and the capacitor can still function, but at a weakened state.

These capacitors deal with the voltage power rail for a power supply. Weak capacitor? Weak voltage rail!

Your processor requires a steady, 'clean', supply of DC voltage. It operates in a very TIGHT tolerance. Too much, or too little, it turns off. Too little it doesn't turn on.

The power surge has weakened Electrolytic Capacitors inside your power supply.
Lights light up. Fans spin. It sounds like the harddrive is running. (It IS! It's just sitting there spinning. More about that to come)

ALL the lights use less than 1 watt. EACH fan uses 2 to 3 Watts. The harddrive just sitting there spinning, uses about 5 Watts.

When it's time for the processor to turn on, (BIOS turns it on), it can't! Processors use 55 Watts to 125 Watts. Depends on the processor make and model.

Your harddrive just is just sitting there spinning, because the processor isn't running.

Solution? Replace the power supply, be happy.

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