Compaq CQ58 no power

[KEVSPIT]

Hi

I have a Compaq CQ58 which has an intermittent power up issue. It only manages to power up once every circa twenty power cycles.

When it powers up, it boots to windows without any issues.

When it doesn't, the screen does not turn on and also there is not output on the VGA out.

Also, the POST card is giving me random codes, which are 11, 1D, 15 and 16.

I have also replaced the CMOS battery and given a hard reset but no luck.

Is this a case of CPU/GPU replacement? Any ideas?

System information as below:

Compaq Model: CQ58-300SA
Compaq Motherboard P/N: 688303-501

P/N: 010172W00-600-G
NEWTON_BR_HPC
MV_MB_V1

CPU: EM1200GBB22GV
GPU: 218-0755113

Thanks

[PlusCom]

Re: Compaq CQ58 no power

Try to flash Bios

[KEVSPIT]

Re: Compaq CQ58 no power

Hi, How can I flash BIOS when the BIN file is encrypted? I extracted the below exe file and the BIN file inside is 01885.BIN.

Compaq SP file: http://ftp.hp.com/pub/softpaq/sp66501-67000/sp66770.exe

Thanks

[PlusCom]

Re: Compaq CQ58 no power

What do you mean encrypted? just flash the bin file with programmer.

[KEVSPIT]

Re: Compaq CQ58 no power

When sp66770.exe is extracted, the BIOS file is 01885.bin

This BIOS file is not suitable to use with the EEPROM programmer because it is encrypted.

I just found out that the proper bin file can be decrypted using Phoenix Tool 2.50.

This application will create a BIN and a SIG file. Then this BIN file can be used with the programmer.

[KEVSPIT]

Re: Compaq CQ58 no power

It's not from the BIOS. After flashing the original BIOS using an SPI Flash programmer the issue persists.

Any ideas?

Thanks

[atsio]

Re: Compaq CQ58 no power

Reflow GPU

[KEVSPIT]

Re: Compaq CQ58 no power

Reflowing the GPU did not help. I will replace the device (218-0755113).

Thanks

[dj_ricoh]

Re: Compaq CQ58 no power

Does it power normal without bios battery?

[KEVSPIT]

Re: Compaq CQ58 no power

Does it power normal without bios battery?

Hi, No it doesn't unfortunately. I have also tried hard reset many times but no luck

I am finding it strange how the BIOS POST is acting. Stopping on codes 11, 13, 15 ,16 17 ,1c and 1d randomly but I cannot find what these mean for Insyde BIOS.

When I unplug the RAM the POST card gives code 50.

Thanks

[dj_ricoh]

Re: Compaq CQ58 no power

Condition of thermal pads?
They where ok?

[KEVSPIT]

Re: Compaq CQ58 no power

Condition of thermal pads?
They where ok?

On this particular model, there were no heatsink and/or pads on the GPU, strange uh?

[dj_ricoh]

Re: Compaq CQ58 no power

No. typical for this generation

Even sony vaio does this.

Take out the silicon around the chip and reflow it.

[dj_ricoh]

Re: Compaq CQ58 no power

Had a cq58 almost same crap. No power.

Had a blown fet near dc jack. It went bad because if lcd cable. First problem was no backlight. I force it to power and the notebook blew up like fireworks.(entry fet)
Change the fet, replace coil from lcd, new cable and it was like new.

Should have seen how much fumes a fet can make

[dj_ricoh]

Re: Compaq CQ58 no power

Try without screen. Just in case hahahahaha

[KEVSPIT]

Re: Compaq CQ58 no power

Had a cq58 almost same crap. No power.

Had a blown fet near dc jack. It went bad because if lcd cable. First problem was no backlight. I force it to power and the notebook blew up like fireworks.(entry fet)
Change the fet, replace coil from lcd, new cable and it was like new.

Should have seen how much fumes a fet can make

Yes I have seen FETs doing that The die will glow white until it burns!

I don't have much experience on laptop hardware but I'm slowly getting there.

[KEVSPIT]

Re: Compaq CQ58 no power

Try without screen. Just in case hahahahaha

It's not from the screen, with or without it is the same.

[KEVSPIT]

Re: Compaq CQ58 no power

No. typical for this generation

Even sony vaio does this.

Take out the silicon around the chip and reflow it.

Is there an easy way for removing the red silicon? I usually use a heat gun and scratch it away.

[dj_ricoh]

Re: Compaq CQ58 no power

I use a wood tooth pick

[KEVSPIT]

Re: Compaq CQ58 no power

I use a wood tooth pick

Do you heat it before?