G7 what, it has full model number not just G7,
that means near zero. in fact.
what does boot mean? its a long serial process.
sure no windows (no windows stated, XP?)
the power must turn on and first.
hear that fan run? feel it blow? vents clean first.
The G7 Pavilion is both a desktop PC and a Laptop,
silly no, but HP did that, google G7 , SEE?
I guess the BATTERY thing is not the CMOS battery but the huge , Laptop battery. smart act taking it out first. they do short.
but what about sound, and the fan blowing. it must blow
or the Power pack is dead.
i bet the old mother board was ok. and you didnt do the strip down test to prove that.
ever heard of these?
1: CMOS RTC BIOS NVRAM COIN cell, replace it first.
if not the BIOS can not load configs. ever. again. bad bad bad.
2: power pack dead if fan is dead. replace it its only $8
or use a voltmeter is it enters the mobo 19vdc, is ok, less that 18v not.
3: then if the fan is still dead, power dead, BIOS dead.
and external VGA port dead to external monitors, then
we pull modules off the MOBO, up to 6 or more
they all can short and when they do, power goes to ZERO
the regulators do that by DESIGN.
(the no catch fire deal)
sure wish you said (lap or desk top sure did)
after all the Desktop PSU may be bad, if its fan is dead.
SOURCE: dell latitude d620 power on password can't remove
No need to short out any pins, shorting out pins allow you to reset the BIOS quickly. When you leave the BIOS/CMOS battery out overnight, this will reset the BIOS (you only need to leave the battery out for 1/2 + hour to do the same thing).
SOURCE: laptop wont boot and the battery and power lights flash
"......no beeps and it is a 3rd party charger for this model of laptop."
That 3rd party adapter could be the problem. Also, try to take out the battery and power it up from AC adapter only.
Ideally, try to find original AC adapter just for testing.
SOURCE: WONT BOOT BLACK SCREEN
this is a easy one plug up your unit take out ur battery for 30 sec while holding do the power button hit the power button once again and it should come on and if it dont the great things is there a recall on those pc call hp they will send u a new pc free of charge
SOURCE: hp pavilion dv8000 help
I had the EXACT same issue on my HP Pavilion DV8000. After reading this thread I started disecting the machine, sure the issue was a faulty internal power plug/cable. It is TRULY a big job, but very doable without special tools. You pretty much have to take every single screw out of the thing to get to that stupid cable.
Here are a few things to know:
1) there are a lot of screws - mainly long black (L 12) and short silver (L 5x2.5). Keep track of all of them in order so you don't end up like me - with 3 leftovers. Lol. There is ONE long black screw that is a little shorted than the others (L 10). This is one I had left over. There are two VERY tiny black ones. I also have one of those left over. There is also a few smaller black ones, too. Just keep them all noted as you remove them and remember where these odd ones go!
2) There are some very flat band cables that plug in to tiny plgs. However thereis no plug on the cable. The flat end just shuves into the plugs. These are very delicate. be gentle with them.
3) When you finally get the housing for the fan loose you can now get to the entire power supply cable. Here is a note: I FIXED my problem by unplugging this cable and plugging it back in. The cable runs under the fan housing, and it seems like you have to remove that housing to get to the cable, but actually it comes out again right next to the processor and heat sink. There is a thin sheet of black sticky insulator tape over the processor and the cable at that point. You'll have to gently remove it. There is not much room there, but you CAN unplug the cable without removing the entire fan housing.
Here is what I did to test this plug and cable. After unplugging it, I shoved a tiny straightened staple (the female plug is very tiny) into the female receptacles for the prongs on the motherboard (red and black only). Then I plugged the power supply in to the power jack. With a DC meter I verified that the female end of the power cable inside the machine was getting juice, and it was.
With nothing left to test, I put it all back together (save three screws) and it is now charging the battery and running from the ad power plug. Whatever I did fixed it!
One last note: There are 4 sequenced screws that hold the heat sink tight. These are under a bit of pressure so the sink is tight. DO NOT remove these as the sink has a heat conducting "goo" that helps it disperse the processor heat. As old as these machines are now, you don't really want to disrupt that "goo" and risk the processor over heating.
I hope all of this typing helps someone.
SOURCE: hp pavilion a820n comp won,t turn on . rear power
make sure nothing is plugged in to your front card readers slots:
If so PC will not boot. Other then that can you put a different power supply in it? Just to see if it is the Power supply..
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