Question about HP Compaq dc5100 PC Desktop

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Power Supply Getting started without pressing power switch

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You can't start the computer remotely. The computer can start remotely if the BIOS is set to "allow Network devices to start computer" or similar actions. When the computer is booting up, usually you'll see an option to press F1, F2, Del, or another key to enter the BIOS. Make sure the settings are saved as you exit.

If the computer is in Sleep mode, just moving the mouse, or pressing a key could wake it. In that case, lock the cat out of the computer room.

Posted on Nov 16, 2013

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1 Answer

Gateway GT5648E PC won't power up - continuous beeping.


hi, on the motherboard there is a ATX connector from the power supply now there is a problem with the actual switch or the power good to the motherboard otherwords the power supply if one of the components is not getting a voltage or the right level of voltage you will get this bleeping now if it's always 25 times then works i would point the finger at the power supply can you check that the devices attached such as the harddisk etc are getting power from the power connector ? i have seen this problem before and it was the power supply and power switch regards

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I have a HD camera and I am getting a E.91.01 error. How do I get it fixed? Is there a easy way to do it without having to replace a peace on the camera.


1. Turn OFF cam
2. Remove the battery or the power supply
3. Turn the switch to CAMERA for about 30 sec
4. Turn the switch to OFF
5. Install the battery or power supply
6. Turn the switch to MEMORY
7. Open the LCD cover and press the RESET button ( small inner button )
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1 Answer

I too have a similar problem. The LED on the motherboard is on when power is applied. I think I've isolated it to the front chassis power and reset switch combination. The reset switch crumbled when I...


Both the reset and power switches are normally-open, momentary contact to operate. If you twist the reset leads together, it's the same as permanently holding the motherboard reset button pressed. You don't need the reset button in any case, so you don't have to worry about replacing the switch.

The LED on the motherboard indicates the presence of standby voltage, so the power supply is working to at least that degree. The power switch is only a signal to the motherboard to turn on the power supply and start the rest of the system operating. So if the system doesn't come on when you press the power switch, either the power supply is bad or something is preventing the motherboard from starting properly.

A quick test of the power supply is to ground the PS_ON pin in the output connector:

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Unplug the connector from the motherboard and use a piece of wire or a bent paperclip to short the pin marked PS_ON to the ground pin on either side in the same row (not across to the other row, which is the standby 5-volt pin!). If the power supply is working, it will turn on and its fan will start running. This doesn't mean the supply is 100% good, but if it doesn't start with this test you certainly need to replace it.

If the supply starts this way but not when it's connected to the motherboard and you press the power switch, then you'll need to figure out why the motherboard's not starting. There may be something wrong with the board itself, or something connected to it is preventing it from starting. Removing parts and parts substitution will help you find the culprit.

As far as getting a replacement switch assembly, you might try Gateway support to find the assembly part number and see if they offer it for sale, or check eBay. Or you can try replacing the switch by itself. On some assemblies the switch is just held into the bracket by tabs, and companies like Digi-Key and MCM sell suitable replacements.

Jan 18, 2011 | Gateway 510 X (10272197) PC Desktop

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What are the symtoms of a failing power supply on Gateway GT4024? Thanks, JEL


Some symptoms of a failing power supply unit on this unit are, computer does not start automatically when power button is press, the place where the power supply is located is getting way to hot unlike before and then computer just shut down itself without any notice. IF you have these symptms you might want to consider already replacing the power supply on this computer.

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HP Compaq Presario SR2038x desktop


Unplug the computer from the power cable. Take the cable and try it on anything else you have that uses a similar power cable. (TV, Stereo tuner, just take a look around the house). Back to the Desktop computer: Press and hold the power button on the front panel for 10-15 seconds with it unplugged. Plug the computer back in and try to restart it. If it still does not power up you need to have the power supply tested.

Jun 25, 2010 | Computers & Internet

1 Answer

Screen locks on start and computer does not


ur OS may be corrupted...
u need to reload OS or
try to do this...
power off the machine
switch off power supply/remove power cable from wall outlet.....remove the power cables...from PC power slot.......keep pressing the power on button in the PC for 3-4 mins....WITHOUT POWER....and/or
press the PC switch on button and release it after few seconds many times.....
Power in RAM is locked...and it's locked ur Windows DLL files....

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1 Answer

IS THERE A WAY TO CHECK THIS POWER SUPPLY,I KNOW ITS SWITCHED,I HAVE A METER AND KNOW THE OUTPUT VOLTAGES,IS THERE A WAY TO ACTIVATE OUTPUTS?


Try ZALMAN reserator XT manual. There part about starting it without motherboard connection/ it focuses on ATX power supply pins. cheeking for leakage section of getting started

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My computer doesn't power-up


Sounds like motherboard or cpu have given up ,try booting with no ram checking for beeps,vga etc

Jan 09, 2009 | Intel D915GAG Motherboard

1 Answer

Gateway power supply


switching unit in powersupply sounds shot, if you want to test primary switching, un plug power from back, take main motherboard power socket off the board, take a paper clip and put it in the GREEN wire in the socket, and any BLACK wire, now (without touching the socket or having it touch anything else) plug power into the PSU, if the fans all fire up and spin, then the switching is fine, i would look at a fault on the board

Dec 03, 2007 | Computers & Internet

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