Question about HP Pavilion a305w (DM181AR) PC Desktop

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Processor I have a HP Pavilion a305w desktop computer. I was trying to clean the heatsink on the processor and removed it... When I put it back in all that happens is the little power light on the front of the tower glows orange... It wont boot up or come on at all... What's wrong?

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  • rdgn Sep 17, 2008

    when i turn on my hp pavilion desktop a little orange light glows on the front tower.



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A little orange light glows on yhe front tower of my pc

Posted on Sep 17, 2008

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Open the case and make sure all the connectors are attached and where they should be.


Posted on Sep 01, 2008


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1 Answer

The fan on my 3100 runs normal when I first boot up then it starts running faster and faster then it tottaly shuts down. the fan works fine. could this be the processor?

The Thermal Paste in-between the Processor, and Heatsink, has dried up.

Use a plastic scraper to clean top of Processor, and bottom of Heatsink. I use an old credit card.
Scrape off as much as you can.

Use Q-tips dipped in Isopropyl Alcohol. Don't worry about dripping off, alcohol will evaporate.
Takes a LOT of alcohol dipped Q-tips, as it's usually a gooey mess.

Isopropyl alcohol is EXTREMELY FLAMMABLE!
Use in a WELL ventilated area with NO sparks or flames present.

When the Processor, and Heatsink are clean, and dry; properly apply fresh, new Thermal Paste.

FOLLOW Anti-Static Precautions.
If you are not aware post back in a Comment.


[Plus your computer is probably dirty inside. Use a can or two, of compressed air for computers to clean it ]

Jan 07, 2013 | HP Hewlett Packard Pavilion Slimline...

1 Answer


1) HP Pavilion 745n Desktop PC is dirty inside. Power unplugged from computer, Anti-Static Precautions -> FOLLOWED, use a can, or two of compressed air for computers, and clean. (Especially the processor heatsink fins, and processor fan)

2) Also replace the Power Supply.

Before doing so suggest performing the simple test to see if the problem is the Power On button, or Power Supply. Test voltages coming out of Power Supply with a multimeter, or use a KNOWN to be good, Compatible power supply for a test unit, borrowed from a working computer.

Need guidance with the above post back in a Comment.


Nov 23, 2012 | HP Pavilion 754n PC Desktop

1 Answer

My HP monitor, connected to CPU does not display anything on the screen but the power is on, showing yellow and green colour (blinking).

first remove the cover switch of the computer and check the cable from the monitor to the computer is connected properly then check wethe the smps is working then check wether the processor fan is working if working remove the meomery card and clean with a clean cloth and also remove the processor heat sink and clean both surface of the heatsink and the processor and lay a thin layer of heat sink solvet and replace the processor fan firmly to the processor and switch on the computer

Mar 26, 2011 | Computers & Internet

1 Answer

Wont boot up to desktop

remove the computer covers remove the memory from slot and clean the memory with clean soft clothalso remove the processor fan from the socket clean the surcace of the heatsink and the processor and apply thin layer of heatsink solventand fix the processor fan firmly on the processor socket

Jan 15, 2011 | HP Pavilion dv6000z Notebook

2 Answers

Why my computer shut down every 2 hours

right click on the desktop click on properties select the screen saver option in this option u can see the power option and selcet never option of turn off hard disk and standby options.

Nov 15, 2010 | Computers & Internet

1 Answer

You have to put a lot of weight on the heat sync for it to boot up

I would assume that it's the cpu heatsink? Actually, it's a bad thing to put extra weight on the heatsink for it may damage the processor. The spring and locking mechanism of the heatsink is just enough to transfer the heat from the processor to the heatsink. Problem maybe on your processor not properly seated on the slot. Remove the heatsink assembly, and release or remove the processor from the slot. Check if there's a foreign object in the slot, a brush will do the cleaning. Reinstall the processor and the heatsink assembly.

Sep 06, 2010 | Dell Dimension 4700 PC Desktop

1 Answer

While cleaning I took the processor out and now my Dell XPS 410 wont start.

I do not understand what do you want to find under the processor??? Leprechauns???

If you desperately want to clean your computer, never ever use vacuum cleaner, if you want to clean heatsink and fan, exactly remove only and only fan, brush and blow heatsink if you must.

Now, again, as you did put already your computer to pieces:

1. switch off computer, remove power cord from teh socket
2. remove again the wall,
3. remove heatsink and fan, check if processor is correctly installed, replace heatsink and fan,
4. remove and re-insert memory sticks, thes have tendency to burn or get moved during cleaning, check if memory is correctly inserted
5. check power connectors on the motherboard, 24pin as well as 4 pin
6. check power supply itself

If computer after tha procedure still do not start, tehre question arises:
1. did you used vacuum cleaner to clean?
2. did you use static strap...

If your answer is yes/no you fried your processor, memory or motherboard... or all three, check then all three components against known working computer and then replace bit which you fried...

Aug 23, 2010 | Dell XPS 410 PC Desktop

1 Answer


try to isolate your processor. use other processor with the same specs that is installed in your desktop. then try to boot it up.

Apr 11, 2010 | HP Pavilion a305w (DM181AR) PC Desktop

1 Answer

My Computer will not work fans did work but have also now stopped


You may want to make sure that both the atx connector and the additional 4pin p4 connector are tight. Also, either tighten or remove all expansion cards because one could be loose or bad. You may also try re seating the cpu. It could also be the voltage switch on the back of the power supply (if it has one -- some do some dont). There could also be something shorting between the motherboard and the case.

Could also be the case that the initial cpu is fried due to no grease and the new cpu may not be compatible with that motherboard. Make sure that if that motherboard has jumpers that they are set correctly for you specific cpu.

YOu can find documentation and driver for your product here.

Hope this helps. Please remember to rate this information.


Nov 15, 2008 | HP Pavilion a305w (DM181AR) PC Desktop

1 Answer

Hp pavilion won't start up

Unless you are familiar with computer hardware you should take your PC to a technician. I think your processor is probly getting too hot. Your computer will shut. itself off if the processor over heats. Try opening up your case and blowing out all the dust you can with air duster. You may need to replace your processor, video card, ram or motherboard. All of those can cause the problem you are having

Apr 06, 2008 | HP Pavilion a305w (DM181AR) PC Desktop

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