HP G62 No Power Issue

[harshana]

Re: HP G62 No Power Issue

Anyone Own working bios file for this model. May be the bios file I use may not work.

[harshana]

Re: HP G62 No Power Issue

Anyone Own working bios file for this model. May be the bios file I use may not work.

I tried another file also. but not working.
Im thinking to flash SIO Chip. Is there any KBC backup??

[harshana]

Re: HP G62 No Power Issue

I desoldered IO chip and soldered the chip back after cleaning the pads. After that I was able to see the AC power light near the DC jack and also The laptop powered on but no display.

I planed to flash old bios back but I took a rest that day. Today When I replug without doing anything I was unable to see the changing light. Not only that. I see the IO chip is heating up. Whats wrong? Bad IO chip I guess. I can't find same IO chip within My county. Can I use something similar???


Model No: KB3926QF D2

If I ordered the same chip. Do I need to program It??? Help please

[mcplslg123]

Re: HP G62 No Power Issue

This chip is not programmable. It uses a separate EEprom chip for bios program. KB3926QF D2 and KB3926QF CO are substitutes.

[harshana]

Re: HP G62 No Power Issue

This chip is not programmable. It uses a separate EEprom chip for bios program. KB3926QF D2 and KB3926QF CO are substitutes.

Here are the KBC list available here.

https://motherboard.lk/shop/?filter_brand=ene-kbc


Im thinking about "ENE KB3926QF A1" OR "KB926QF D2" Which are available to buy. Aren't they compatible???

[ACS-Repair]

Re: HP G62 No Power Issue

harshen, does this G62 have an Intel or AMD GPU?
AMD versions of these computers have been known to fail due to the defective GPU, much like the 2011 Macs.
If it has the AMD GPU next to the processor, try reflowing it at a lower temp, being careful not to melt the CPU socket.

[harshana]

Re: HP G62 No Power Issue

harshen, does this G62 have an Intel or AMD GPU?
AMD versions of these computers have been known to fail due to the defective GPU, much like the 2011 Macs.
If it has the AMD GPU next to the processor, try reflowing it at a lower temp, being careful not to melt the CPU socket.

No there is No separate GPU.

[mcplslg123]

Re: HP G62 No Power Issue

KB926QF D2 is same as KB3926QF D2. The suffix A1 is not compatible for sure.

[harshana]

Re: HP G62 No Power Issue

KB926QF D2 is same as KB3926QF D2. The suffix A1 is not compatible for sure.

Okay. I will order KB926QF D2 Chip and try. however, can I know how we find compatible chips? Looking at pinouts??? or any other way?

[harshana]

Re: HP G62 No Power Issue

KB926QF D2 is same as KB3926QF D2. The suffix A1 is not compatible for sure.

I heard KB926QF D3 also same. So I used that chip but still nothing. even I can’t see 3v at power switch. Bios flashed still same.

whats wrong with this


Edit: I noticed that some always voltages are lower than mentioned.

10VALW——>7.22v
15VALW———> 10.24v

Is that okay???

[harshana]

Re: HP G62 No Power Issue

Any Luck

[mcplslg123]

Re: HP G62 No Power Issue

I heard KB926QF D3 also same. So I used that chip but still nothing. even I can't see 3v at power switch. Bios flashed still same.

whats wrong with this


Edit: I noticed that some always voltages are lower than mentioned.

10VALW——>7.22v
15VALW———> 10.24v

Is that okay???

Your 10VALW/15VALW is ok.

[harshana]

Re: HP G62 No Power Issue

Your 10VALW/15VALW is ok.

What do you think about the chip I used? Will it compatible or not?

[harshana]

Re: HP G62 No Power Issue

any luck

[mcplslg123]

Re: HP G62 No Power Issue

What do you think about the chip I used? Will it compatible or not?

Yes, suffix CO/D3 are also compatible on this platform.

[harshana]

Re: HP G62 No Power Issue

Yes, suffix CO/D3 are also compatible on this platform.

mm What do you suggest. Im out of ideas to fix this stuff😕

[ACS-Repair]

Re: HP G62 No Power Issue

The HP G62 has a known fault where it won't turn on because of the AMD graphics chip. Did you notice if the CAPS-LOCK LED is flashing when you turn it on?

[harshana]

Re: HP G62 No Power Issue

The HP G62 has a known fault where it won't turn on because of the AMD graphics chip. Did you notice if the CAPS-LOCK LED is flashing when you turn it on?

The thing is this laptop doesnt have dedicated graphics. There is no AMD card.

Also laptop doesnt power on.