Question about Compaq System Power Supplies

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Computer shuts off on its own

Reboots saying power failure but no other devices go off

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  • INHS INHS May 11, 2010

    plssss tell me more problem or problem issue of your pc.. ^^

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Try replacing your powersupply Unit

Posted on Feb 03, 2009

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1 Answer

When I turn on my computer it runs for a couple of seconds and then stops.


Unplug everything inside the computer, except the motherboard and the front panel power on switch. Power up the computer. If the PS fan continues to run, (power supply doesn't shut down)and the CPU fan runs, then power off the unit and reinstall each device, one at a time, turn the power supply on after each device is installed (and off, before installing the next device).
You can not easily start the power supply if it is not connected to the cpu motherboard.
If the power supply shuts down with only the motherboard attached, then you will need either another power supply, to test the MB, or another MB to test the power supply.
R

Feb 02, 2011 | Acer DPS-420GB (dps420gb) Power Supply

1 Answer

I have a Compaq Presario F700 and when I try to turn it on, the power light comes on for a second (I hear the fan), but then shuts off again. The cause is most likely that I was restarting my computer for...


Test or replace your PSU power supply unit preferably with a heavy duty one with plenty of wattage remembering that with any added hardware your computer will use more power/wattage eg:more RAM ,bigger hard drive,slave drive

One bad/faulty lead can cause a computer with lots of problems continually rebooting or failing to detect your drive

replace all the leads that attach to your hard drive including electrical extensions + IDE,SATA the ones that attach from your motherboard to hard drive

make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty or just replace them they are probably old and faulty ?

hope this helps?


Nov 15, 2010 | System Power Supplies

1 Answer

I have many usb devices plugged into my computer, and the computer will not reboot , the power supply is 305 watts


you have a usb hub? try removing it, then rebooting computer- if it re-boots, may be too many usb devices. how many hds and optical (cd/dvd) devices are installed? you can get a 'powered' (wall-wart!) usb hub that doesn't rely on the comp. power supply to supply it. you may want to consider that!
good luck!

Oct 12, 2009 | Dell (C3760) 305-Watt Power Supply

1 Answer

Power supply arcing noise


Disconnect all devices from the power supply EXCEPT the motherboard
Remove any extra cards including video etc.(plug monitor into the onboard)

If the PSU fan does not spin then time for repair / replace

If you hear any beeps these can indictate where the fault is.
either of these sites below will help you further with that

Beep codes Pc

More beep codes

Power up the pc and see if the fans are working.
If not then double check the power connections to the board.

If you still have no fans it is time to suspect the power supply as the probable cause.

If the fans worked then you should have gotten a display which told you there was an error and offering you a chance to go into the BIOS. ignore it and shut down the PC.

Now connect one drive only and boot again.

Repeat that until you identify the component that is giving you a problem.

Once you find the problem then remove or disconnect and carry on with the rest to see if another component might also cause a problem

If there is only one problem device then you may want to investigate that device further, Unless you don't mind replacing it

Oct 09, 2009 | OCZ StealthXStream / 600-Watt / ATX /...

3 Answers

Power supply on HP MediaCenter m7664x


Disconnect all devices from the power supply EXCEPT the motherboard
Remove any extra cards including video etc.(plug monitor into the onboard)

Switch on and check the fans on the PSU and CPU are running. If not you may want to try a replacement before you go any further.

If you hear any beeps these can indictate where the fault is.
either of these sites below will help you further with that

Beep codes Pc

More beep codes

Power up the pc and see if the fans are working.
If not then double check the power connections to the board.

If you still have no fans it is time to suspect the power supply as the probable cause.

If the fans worked then you should have gotten a display which told you there was an error and offering you a chance to go into the BIOS. ignore it and shut down the PC.

Now connect one drive only and boot again.

Repeat that until you identify the component that is giving you a problem.

Once you find the problem then remove or disconnect and carry on with the rest to see if another component might also cause a problem

If there is only one problem device then you may want to investigate that device further, Unless you don't mind replacing it

Oct 02, 2009 | HP System Power Supplies

2 Answers

Im tryin to connect my USB in the computer to put my pictures on the computer but it wont let me ???/


Hello

A few questions that may confirm problem.
Does your computer seem to know that something is plugged in?
Or does it say that it does not recognize the device?

Well, if the computer actually knows that a device has been plugged in, but you just cannot see the device in my computer, here is how you fix that. Just follow these steps:
Control panel
Administrative tools
Computer management
Storage
Disc management

Now you should see your device presented in the schematic below.
Right click on the device and assign a new drive letter.

If your computer states that it does not recognize the device, try plugging it in one of the back USB ports of the computer. Please rate this.

Best regards

Sep 30, 2009 | Dell 210W Optiplex GX270 NPS-210 AB Power...

1 Answer

Computer Keeps Shutting Down


I found an article from Microsoft that may answer your question, which I have quoted below. The link to the page is

http://www.microsoft.com/windowsxp/using/helpandsupport/learnmore/tips/nostandby.mspx



Ifyour computer won't enter standby or hibernation, it may requireupdated drivers. Power management features, especially standby andhibernation, rely on device drivers that support power management inaddition to compatible hardware. Incompatible video drivers preventthese features from working. The built-in VGA driver, for example, is abare-bones driver that doesn't support power management.
If standby and hibernate don't work, install an updated driver for your display adapter.
Tip taken from Microsoft Windows XP Inside Out by Ed Bott and Carl Siechert. Published by Microsoft Press.

First check HPs website for updated drivers for your machine. Look at your drivers from the device manager and note the version numbers, then compare that with the version on the website.
If they are not helpful, you could try to manually update the drivers by finding them in the device manger, right click on each ACPI device (ACPI Lid, ACPI button, etc...) and select update driver.
If no updated ACPI drivers are available, check the power settings in the control panel. Under the 'Advanced' tab, there are options about what you want to happen when you close the lid, and when you press the power button. (Mine both say 'stand by'.)
To sum it all up:
  1. Check the power settings in the Control Panel /Check if it works
  2. Update Video Drivers /Check if it works
3. Update Motherboard and ACPI Drivers /Check if it worksReply with the results, then rate my solution. :)

Feb 21, 2009 | HP System Power Supplies

1 Answer

I need to know how to reboot my packard bell pc


Under the start menu there should be an option to shut down; restart; sleep. Use the restart option & it will start rebooting. If this does not work then close all your programs and hit ctrl+alt+del twice. This should start a reboot. Hope this helps.

Dec 21, 2008 | Packard Bell (190169) Power Supply

1 Answer

Hp lap top will not reboot, restart nor retore


Sounds like a power supply issue.. Check the mother board for a light when the power is on (some mobos will not have this light). If there is a light, but it does not go on when the power is connected, replace your power supply.

Also, please post the model number of your computer.

Mar 26, 2008 | System Power Supplies

1 Answer

Computer shuts down and reboots at random


the motherboard is going out. when it goes out all the way you will need a new power box and mother board

Nov 09, 2007 | HP (152769-001) (152769001) 250-Watt Power...

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