Compaq CQ62

[greigc]

I have two motherboards from this model with the exact same problem... Turns on and the CAPS lock light flashes 3 times then it turns off and back on, then flashes constantly.

I have changed the memory as per HP's diagnostic table (3 Flashes states bad memory).

I have reflown the GPU and southbridge with no difference...

Any other ideas???

[spleenharvester]

Re: Compaq CQ62

Have you checked the 1.8v voltage supply for the RAM is present?

[spidey]

Re: Compaq CQ62

Have you checked the 1.8v voltage supply for the RAM is present?

it is a point.

Also clean ram slots.

[Pragmatiko]

Re: Compaq CQ62

bios

[greigc]

Re: Compaq CQ62

If its the bios how would I reflash it?

[greigc]

Re: Compaq CQ62

Where would I find the 1.8V on the ram?

[Pragmatiko]

Re: Compaq CQ62

If its the bios how would I reflash it?

with programmer

[spidey]

Re: Compaq CQ62

check from the schematics.

[greigc]

Re: Compaq CQ62

From what I can see there is 1.6V on the VSUS so that should be ok... Now I gotta try and find the BIOS IC ;-)

[Pragmatiko]

Re: Compaq CQ62

pls write right model #ABZ

[sasser]

Re: Compaq CQ62

Could someone create collection for bios laptop thread . Sometimes hard to find correct bios for some model laptop. Anyone hav the collections?

[spleenharvester]

Re: Compaq CQ62

Need the model number as someone else mentioned. You can get it from manufacturer 99.9% of the time if you put the whole model number in. The hardest part is doing the flashing

[greigc]

Re: Compaq CQ62

I can find a pre programmed one on ebay. Its a winbond BIOS. or if I can remove the same one from another board I got lying around.

[greg464]

Re: Compaq CQ62

You can try with good CPU and check CPU socket.

[greigc]

Re: Compaq CQ62

I have tried another CPU but the error states bad memory, I know the memory is ok tho as it works fine in another laptop...

[greigc]

Re: Compaq CQ62

Would a bad CMOS cause the cpu to not get hot? without the heatsink the cpu is stone cold, southbridge is warm and GPU is warm... this is on both boards... just flashes 3 times then goes off and back on then constantly flashes the CAPS lock.

[spidey]

Re: Compaq CQ62

check vcore voltages, you need a schematic. What is the mobo code ?

[spleenharvester]

Re: Compaq CQ62

Definitely check Vcore. If you can't find the schematic, just take your DMM, wind the ground wire round the shielding of a USB port or a similar ground, then try and get some readings off the caps behind the CPU socket.