Question about Compaq (176763001) 120-Watt Power Supply

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Power supply crow bar

My pc is not turning on it's blink in red color 2 or more second it say's inside the cover back when blink in red color 2 or more seconds its (Power supply crow bar) what can i do about this. thanx

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Hi, if your computers manual tells you that you have a power supply fault you need to replace the power supply or take the computer to a repair shop and have them do it for you. Regards mistyman

Posted on Sep 22, 2007


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Posted on Jan 02, 2017


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1 Answer

Beeps red light hp pc

The blinking should be in a pattern.

Power Green On (S0) Computer on
Power Green 1 blink every 2 seconds (S1) Suspend Mode
Power Green 1 blink every 2 seconds (S3) Suspend to RAM
Power Green Off (S4) Suspend to Disk (if applicable)
Power Clear Off (S5) Computer off
Power Red 1 blink followed by 2-second
pause - Repeat
Power Supply failure
Power Red* 2 blinks 1 second apart CPU thermal shutdown
Power Red* 3 blinks 1 second apart CPU not installed
Power Red* 4 blinks 1 second apart Power supply overload (crow bar)
Power Red* 5 blinks 1 second apart No memory
Power Red* 6 blinks 1 second apart No graphics
Power Red* 7 blinks 1 second apart System board failure (detected prior to video)
Power Red* 8 blinks 1 second apart Invalid ROM
Hard Drive Green Blinking Hard drive activity

Aug 17, 2013 | HP Computers & Internet

1 Answer

Replace the 2 bulbs. Unit powered up correctly and turned on like normal. Then Lamp1 and Lamp 2 indicator lights blinked (Indicating Start UP). After some period of time, it switched to Red 6 times blink...

1 red blink every 2.5 seconds indicates a cover error-- for this check the lamp cover
2 times red blinks very 2 seconds indicates temperature error. for this let the projector cool off check filters and fans that there is no blockage of air for proper cool down
3 red blinks every every 2 seconds Power error. incorrect voltage input or internal malfunction.
4 red blinks every 2 seconds indicates Fan Error check the fans make sure they are working and not blocked or need replacing.
i have nothing on 6 ligths go ahead reconect and check for proper count. hope this information helps.
Best of Luck.


Jun 05, 2011 | Sanyo PDG-DXT10L Projector

2 Answers

Power supply for Philips HEPC 7501/05 failure, can't start my pc! where can I find similar products to replace it?

hi zibby,
power supply are you sure of this,when turn on is the fan inside is not blowing,it easy to replace psu,my power supply is 4 1/2 years before i replace,the price of this made in china more or less $30.00.the important on specification is capacity how many watts
your psu.check on
on frigure as sample disconnect psu besure power off and disconnect all connection at the back of cover of psu
two quick lock in bolt loosen and slide off cover,
on psu there are multiple colors cable that are supplying your
mother board and others devices such as cd room,floopy anf hardisk, pull out or disconnect supply cable on mother board and other devices,then at the back side of cpu beside psu there are 5
screw loosen this and pull out your psu(power supply unit).then if you have new one just reverse the process of disconnecting psu on connecting back new one.
have anice day,rate me if your satisfied to my solution,thanks a lot.

Apr 29, 2009 | Computers & Internet

1 Answer

Red blinking light when on my compaq deskpro en pc

Probably your power supply. They are pretty cheap to replace. If it's plugged into a power bar then try plugging it directly into a wall socket just to make sure it isn't your power supply.

Apr 01, 2009 | Compaq Deskpro EN 6350 Model 4300...

1 Answer

Protron 26' t.v

Symptoms of a Defective or dying Power supplies on LCD TVs.
1. Light(s) on the front panel are behaving not normal example, blinking, amber color or
not steady, fainting, etc.
2. TV not turning ON properly.
3. TV turns OFF by itself.
4. Needs to be unplug to many times to make it work.
5. Humming or high pitch noise heard through speakers or at the back of the TV.

I repair these power supplies. Write to if you require further assistance.

Dec 30, 2008 | Protron PLTV-26 26 in. HD-Ready LCD...

3 Answers

CPU not powering up

check for loose video card or ram. try to remove them and insert them back again

Oct 16, 2008 | HP Compaq dx5150 PC Desktop

2 Answers

Tv shuts off spontaneously. red power light blinks.

re: sony flat panel lcd tv mod. # klv s 40a10.
No power. When power button is pressed, nothing happens.
The stand-by at the power supply ( cn6201) measures to be 3.47 v. instead of 5 v. However, when I unplug cn6201 (5 pin connector) I can read 5v. at the power supply.
Any suggestions?

Jan 23, 2008 | Sony BRAVIA KLV-S40A10 40 in. HD-Ready LCD...

1 Answer


your motherboard is faulty. replace.

Jan 04, 2008 | Compaq Deskpro EN FC 6450+ Model 10000...

4 Answers

HP Compaq d530

it all depends on the number of flashes , pause, repeat.
Since the problem did not indicate any beeps her is the following info

Power LED blinks RED 2 times, one every second, followed by a
2-second pause. = Processor Thermal Protection Activated

3 blinks 1 second apart = Processor not installed (not an indicator for a bad processor).

4 blinks 1 second apart .= Power Failure (power supply is overloaded)

Other possibilities are:
5 blinks 1 second apart No memory
6 blinks 1 second apart No graphics
7 blinks 1 second apart System board failure (detected prior to video)
8 blinks 1 second apart Invalid ROM

Nov 07, 2007 | HP Compaq Business d530 Ultra-Slim PC...

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