02-06-2009 07:35 PM
My sister is having boot problems w/ an HP Pavilion a750y that she had purchased back in 2004. When the computer is switched on, the fan runs very loudly but nothing else appears to happen on the monitor (everything is plugged in correctly). Also, the lights on the CD & DVD drive flash but the blue light on the power button is not on. On the rare occasions when we can get the computer to boot correctly, sometimes it will freeze (either on its own or when the tower is moved or bumped even slightly) and we have to conduct a hard shutdown.
I'm no expert at troubleshooting but could this be hard drive or motherboard problems? If so, which one? Any info or help would be useful to us.
HP Pavilion a750y
Intel Pentium 4
Windows XP Professional
Maxtor hard drive (250 Gb of memory)
Thank you in advance.
02-06-2009 11:10 PM
Start with the basics.
1.Unplug the PC
2.Open the case and clean out the dust bunnies. Pay close attention to clean around the processor. If you use air.DO NOT let the fans spin freely.
3.Remove and reinstall the memory,video card(if applicable) and reseat all cables.
4.Leave the cover off and start the PC up.
5. Make sure both fans are turning.
6. Look on the back to see if the power supply light is a solid green or flashing.
Let us know what you find.
02-07-2009 09:53 PM
02-07-2009 11:00 PM - edited 02-07-2009 11:10 PM
Did you look to see if it had onboard video also?
Did you remove the internal battery to reset it?
Unless the video card is bad you are probably looking at a bad power supply(even if it seems to be working) or motherboard. Look inside and see if there are any bad capacitors.
02-08-2009 11:39 PM
Yeah, it's got onboard video but it appears to me that it's never really been used (the adapter socket still has a black cap over it). The internal battery has also been removed and tested w/ another battery. And I took your suggestion and looked for bad capacitors on the motherboard and the video card but I didn't see any signs of capacitor plague in my inspections.
Maybe you're right about the problem being either the power supply, the video card, or even the motherboard itself. Unfortunately, I don't have any working spares lying around to see which one it is. I'll have to get back to you about this after I've bummed some of these parts from friends. Thanks again.
02-13-2014 05:08 PM
I just fixed mine and here is what I did:
1)open the case
2) remove the add-on video card
3) remove, dust and replace the RAM
4) remove the CMOS battery, count to 10 and replace it
5) clean the dust from side of the power supply that faces in to the center of the computer (pivot it up slightly)
6) only have the minimum peripherals plugged in (keyboard, mouse and on-board video only)
7) close the case and power on
Now it boots and runs fine. (NB. you will have to set the time and date)
Plug your peripherals back in- driver installs may launch- just follow thru.
I highly suspect it was the video- you can try that step alone if you like.