Hi,
I'm having some troubles with my laptop (HP Compaq 8510w) not booting up, and now I'm trying to figure out which component that's the one that has went bust.
Put my Win7 to sleep mode one day, and the next day the laptop used quite a while to get back into Windows when starting up. Later the same evening I shut down the laptop before going to bed, or so I thought; when I woke up the next day the laptop still tried to shut down, but now the screen was pitch black, and it didn't respond to anything at all.
Forced it to power off, but when I tried to power it back on, everything was still pitch black, and nothing happened.
When I now try to boot it up there are no beeps at startup, just a pitch black screen, so I don't even get to the BIOS or anything. The only signs of life are a sound from the CD-drive as if the laptop tries to read a CD, and that the LEDs indicates HDD activity, plus that the fan is spinning.
So far I've tried:
Since the laptop battery was almost fully charged when this happened, I've also tried booting it up with the battery in case it was the AC power supply that was the problem, but no luck again.
I believe it's either the motherboard or the CPU that has died, but I can't really tell since I'm no expert on these things. Is there an "easy" way to determine which of the two that can be the source? Or any other suggestions to what the problem may be?
I'm having some troubles with my laptop (HP Compaq 8510w) not booting up, and now I'm trying to figure out which component that's the one that has went bust.
Put my Win7 to sleep mode one day, and the next day the laptop used quite a while to get back into Windows when starting up. Later the same evening I shut down the laptop before going to bed, or so I thought; when I woke up the next day the laptop still tried to shut down, but now the screen was pitch black, and it didn't respond to anything at all.
Forced it to power off, but when I tried to power it back on, everything was still pitch black, and nothing happened.
When I now try to boot it up there are no beeps at startup, just a pitch black screen, so I don't even get to the BIOS or anything. The only signs of life are a sound from the CD-drive as if the laptop tries to read a CD, and that the LEDs indicates HDD activity, plus that the fan is spinning.
So far I've tried:
■ connecting an external screen
■ disassembling the laptop and taking out the battery (and holding down the power button for 30sec, 60sec, +++) before booting with AC power plugged in. Done this several times, no luck no matter how long I hold the power button before booting up.
■ other memory sticks that I know are functional, one at a time (for both memory slots).
■ "new" (refurbished) video card.
■ booting after taking out both the HDD and the CD-drive; when doing this there's no sign of life except the LEDs and the spinning fan.
Since the laptop battery was almost fully charged when this happened, I've also tried booting it up with the battery in case it was the AC power supply that was the problem, but no luck again.
I believe it's either the motherboard or the CPU that has died, but I can't really tell since I'm no expert on these things. Is there an "easy" way to determine which of the two that can be the source? Or any other suggestions to what the problem may be?
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