Question about Compaq Presario 4410US (470027-053) PC Desktop

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My compaq presarrio 41Ous will not turn on. I

My compaq presarrio 41Ous will not turn on. I changed the power supply and fan runs, but the the computer will not turn on. what can I check.

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Remove the motherboard from Cabinet and check only M/B and SMPS see if restart ..? 2. Check any components it's burned.

Posted on Feb 10, 2010

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Having trouble w/ on / off switch ... have already replaced power supply ... computer turns on and off at will ... but not necessarily when you want it to ... replacement part number for...


"computer turns on and off at will"
May be a wattage issue considering that you replaced the power supply. The power supply may no be providing enough power to the Compaq Presario 6370US, you must have at least a 400 Watt Power Supply to help the computer run. Also, check to see if all your internal fans are working, i can also an overheating issue.

Feb 27, 2011 | Compaq Presario 6370US (OBDA219A#ABA_1) PC...

1 Answer

My screen is completely black when i turn on my power button, the light comes on and the fan runs but thats it.


This sounds like a motherboard problem, remove main battery and power supply, now press power and hold for 40 seconds, release and install power supply and battery, any change, if not! remove hard drive to see if screen logo will come up, if no! swap out the ram one at a time. If none of this works, it points to motherboard issues.

Feb 07, 2011 | Compaq Presario CQ56-115DX Laptop

2 Answers

How to power up a compaq 243890-001 power supply without the the motherboard? Its not green to ground


Remove Power Supply
1 . Shut down your computer and unplug the power cord and all cables connected to the system.

2 . Open the computer case and disconnect all power connectors from the motherboard, drives, cards and fans.

3 . Remove the four screws that secure the power supply to the case. These screws are located on the back of the computer case, at each corner of the power supply.

Wire and Start Power Supply
1 . Switch the power supply to the "Off" (sometimes "O") setting.

2 . Insert the end of one wire from a single pole, single throw (SPST) switch into the green wire of the ATX power connector (the largest power supply connector).

3 . Insert the end of the other wire from the SPST switch into the black wire of the ATX power connector. If your power supply has two black wires, connect the SPST to the black wire directly beside the green wire.

4 . Wrap electrical tape around the ATX power connector and wires from the SPST switch to hold them in place. Make sure there is no exposed copper or silver wire from the SPST switch wires.

5 . Turn the SPST switch to the "Off" position, if not already set. Plug the power supply into the wall outlet and switch it to the "On" (sometimes "I")setting.

6 . Connect any other computer components that you wish to operate without the motherboard, such as fans, drives or cards. Turn the SPST to the "On" setting to activate the power supply.


Hope the above information will be helpful to you.
Thanks.

Dec 01, 2010 | Compaq (243890-001) 250-Watt Power Supply

2 Answers

Compaq Presario SR2150NX doesn't turn on. Front panel green light turns on but nothing else happens (no fans, no boot, no noise, nothing) Please advice


On the back of the Power Supply there should be a Green LED, When you power it on if it is flashing, this means that the Power Supply is dead and you need to replace it.

Apr 14, 2010 | HP Compaq Presario SR2150NX PC Desktop

3 Answers

CPU fan runs at high speed and won't boot


Change the setting in the BIOS menu. reboot your computer.. when you see the dell logo.. press F1 (or F2 if F1 doesn't work) button until you see the BIOS screen. Check for fan options and change it

Jun 20, 2009 | Dell OptiPlex GX520 PC Desktop

1 Answer

Computer won't boot up


Check the heat sink connected on your processor and its cooling fan is working or not

Apr 09, 2009 | HP COMPAQ Presario SR5410F Pentium...

2 Answers

My DC5000 SFF turns on okay then switches off randomly Help!!


Which fan are you referring to? As far as I know the fan in the power supply runs at the same speed at all times. So if that is the fan you are hearing it may indicate that the power supply is failing. The power supply may be over heating and shutting down. I would try a different power supply if you can get your hands on one.

Jan 18, 2009 | Compaq DC5000 PC Desktop

1 Answer

Power supply making noise and burnt smell can i adapt a normal power supply for compaqs proprietary power supply


hello,
a noise may accure in power supply due to a short circuit or fan does not run properly. if you smell like burnt then you should remove the power supply from pc and open it. then check the capaciter and other element and if you find any broken capaciter then change it with it original value.
ramesh

Nov 29, 2008 | Compaq Computers & Internet

1 Answer

Compaq Presario


Bad hard drive or memory is bad

Dec 01, 2007 | HP Compaq Presario 2500 HP Pavilion ZE...

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