Question about HP Compaq Business Desktop d330

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Not swithching on, if connect to power flashes a red light,but motherboard light is on green,fans off,harddrive not spinning.whats the problem

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Most likely the powersupply, i would replace that first. but if you get the same result you will need a new system board.

Posted on Sep 09, 2009

  • jdelta1adams Sep 09, 2009

    most likely the powersupply, i would replace that first. but if you get the same result you will need a new system board.

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Not swithching on, if connect to power flashes a green light,motherboard light flashes also on green,fans off,harddrive not spinning.whats the problem


hello iam vishal i will tell you the solution,
1)open the cpu
2)clean all the parts with a cloth
3)remove harddisk ,cmos battery and for reinsert after 5 minutes
4)remove the wire and re-attach all the pc wires
run the pc
5)problem is solved

Mar 31, 2011 | HP Compaq Business Desktop d330

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A computer with a D101GGC motherboard does not start. There is no beep or monitor singal. The fan is okay. As soon as the power is connected to the computer, the red drive access light comes on, but not...


its a common problem with intel D101GGC motherboard, just open the case and unplug the dvd power cable and data cable, then turn on the PC it will work fine.

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My computer won't start. Power supply (ttgi 450ss) has a blinking green light and the power supply fan starts when plugged in. Motherboard (asus m2npv-vm) has a green light illuminated between the pci...


See if you plugged in the 4 pin power connector on the motherboard besides the main power connection on the power supply (usually black colored and its a plastic 4 pin connector)

Try another power supply if all else fails. If new power supply does not work with this unit then its a motherboard which is blown and motherboard needs replacing.

Hope this helps

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1 Answer

Screen does not turn on but green light is on.


Green light indicates the monitor is getting power. Nothing coming up on the screen indicates, No Signal.

No signal from the computer. This means the computer itself isn't working.

A bad power supply in the computer can cause this. A bad power supply is the leading cause of desktop computer failure. It is replaceable, and can be done by the owner relatively easy.

You may have a computer tower that the Power light comes on, you hear fan/s spinning, (Including the Power Supply fan), and it sounds like the harddrive is running.

ALL the lights in your computer use less than 1 Watt.
EACH fan uses 2 to 3 Watts.
A harddrive sitting there spinning in an endless loop, consumes about 2 to 3 Watts.

A Processor uses 51 to 125 Watts. Depends on what Processor it is.

A weak Power Supply will have enough power for lights, fans, and that harddrive sitting there spinning.
It won't have enough power to turn on the Processor.

[No processor operating, then the harddrive sits there spinning in an endless loop, because there is no processor to find the boot sector]

For a test, connect your monitor to a know good computer. See if it works.
Now connect that other monitor to your computer.

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1 Answer

Mother board no display


Looks like the lights are on? Fans spin? Sounds like the harddrives spinning? The power supply is bad. has just enough power to light lights, and spin fans, but not enough for the processor. (No beep sounds, because BIOS hasn't done a memory count. It's not going to)

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.

Processors use 55 Watts to 125 Watts. Depends on the processor.
Not enough power to turn the processor on, the computer won't work. Computer isn't working there isn't anything to turn the monitor on. No Signal.

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1 Answer

My possibly fried motherboard/power supply


well..those are fine. the real issue is whether you have power to the main functions of the m/b. Does the fan on power supply turn?

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Compaq Presario 4400us


Either the new power supply you purchased is not functioning correctly. But, assuming it is now that you are getting some form of power to your PC, it is very likely the motherboard. Whatever fried your old power supply (or it could have just been the power supply itself) most likely fried your motherboard in the process. Probably not the CPU since the MB can't even post.

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Computer does not start


Before we begin we?ll need some more historical information: -Was this a functional computer that just stopped working or is this something you?re building? -If this was a working computer were any new programs, hardware, drivers or updates anything that changed recently? -Have there been any recent error messages?

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