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Windows 7: HP Pavillion a6000

25 Apr 2011   #1

HP Pavillion a6000

I brought my aunts computer home to clean it up... (Remove malware,spyware... Disable addons... etc)

It was fully operational but for some reason. the computer would not turn on at home... I tried diagnosing the trouble for quite some time but i resorted to just switching out the power supply (i had several lying around)

I've stupidly unplugged everything without taking a picture first and now can't find a diagram to show me where to plug everything back. I've managed to provide power to the motherboard but I'm having an issue

when i turn on the switch to the power supply the motherboard receives power and the computer turns on... Now to turn it off i can only do so by turning that same switch off... Get it? i don't know if I'm quite making any sense.

I know that along from the main connector to the board itself i need to connect another plug to it.

Can you guys just begin to ask questions lol

Edit: The model number for the model number is ht2000

My System SpecsSystem Spec

25 Apr 2011   #2

windows 7 ultimate 64 bit

Does it fully boot up?
My System SpecsSystem Spec
25 Apr 2011   #3


the computer turns on... Why havent i checked to see if i can see video from it?... /sigh, brb
My System SpecsSystem Spec

25 Apr 2011   #4


No video output... How do i make it POST?
My System SpecsSystem Spec
25 Apr 2011   #5

windows 7 ultimate 64 bit

ok check, the 20+4 motherboard connector(sometimes the+4 part is not plugged in), some use a 4 pin connector near the cpu, all the drives connected, possible bad power cord/outlet... that should be about all that a power supply swap be involved with
My System SpecsSystem Spec
25 Apr 2011   #6


okay, so i did notice that connector neir the cpu and plugged in the corresponding power plug to it. Now, When i plug in the power chord to the back of the power supply the computer will turn on as normal... for about 5 seconds and then the fans stop spinning... i immediately turn of the power to prevent overheating...

again, the power button on the computer is not functioning! the computer turns on when i plug in the power plug and the only way to shut it down... right now... is by unplugging it. Thanks in advance for all the help!
My System SpecsSystem Spec
26 Apr 2011   #7

windows 7 ultimate 64 bit

is this the right oneHP Pavilion a6000 Desktop PC series*-* HP Pavilion a6000n Desktop PC Product Specifications - c00873231 - HP Business Support Center

are you getting any beeps?

Did you unplug the connectors for the power/ restart buttons from the motherboard?
My System SpecsSystem Spec
26 Apr 2011   #8


It looks like the right one however... i got the following numbers from the motherboard...

HT2000 & MCP61PM-HM

I think the model number might be HT2000... I am not getting any beeps.

I left the cmos battery off the motherboard since last night. i just got home, plugged in the battery and plugged the power to the power supply.. as soon as that happens the computer turns on but no display is being seen to the monitor. No beeps... 10 seconds later, the fan stops but i can still hear the computer on! you mentioned the "Restart buttons" whats that?
My System SpecsSystem Spec
26 Apr 2011   #9

Win7 Enterprise, Win7 x86 (Ult 7600), Win7 x64 Ult 7600, TechNet RTM on AMD x64 (2.8Ghz)

Could you have accidentally knocked loose any of the MotherBoard Panel connectors that control ON/OFF, Reset Button, Led power / HD lights ?

Attached Thumbnails
HP Pavillion a6000-mb_header_panel.jpg  
Attached Images
My System SpecsSystem Spec
26 Apr 2011   #10

Windows 7 Ultimate x86

As for turning on and the comp turning itself off after ~ 5 secs: It might be a long shot but I had that happen at several HPs/Compaqs so far:
HPs are notorious for having the main switch on the comp failing. Those plastic switches are garbage. If you press them too hard or off center they have a tendency to get stuck in the front plate so that the contact never get's released.
(That's just like when you do a hard shut down by holding the power button for 4 seconds) Thus turning on and off without any chance for BIOS Beeps and the likes.
Try turning the computer on with just your fingertip, avoid to push in the button too deep.
Or try to power it on with the front cover of the mini tower removed so that you have to press that little "stick"

My System SpecsSystem Spec

 HP Pavillion a6000

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