HP pavillion dv6 wont boot

[hienton2]

I am working with HP dv6. All led lit . Hardrive spin. but never have screen picture light. Error led blinks 3 times. I already clean rams and socket. No help.
Any body has idea? TIA

[DerStrom8]

Re: HP pavillion dv6 wont boot

I have a similar problem with my HP dv2500. It could very well be a problem with the NVIDIA display chip. They're notorious for bad solder joints that come undone over time and kill the display. Your choices would be to do a reflow of the solder joints or purchase a new motherboard. Reflow is cheap, but there's the possibility that you'd damage components on the board. Buying a new motherboard is less risky, but costs more. Take your pick

I wish you the best of luck.
Regards,
Matt

[hienton2]

Re: HP pavillion dv6 wont boot

Already reflow but no help. Thanks Matt

[DerStrom8]

Re: HP pavillion dv6 wont boot

Already reflow but no help. Thanks Matt

In that case, you'd be better off just buying a new motherboard. The joints under the chip are not set up in a way that you can really replace it yourself. You could take it to a pro, but it'd probably be cheaper to just buy a new mobo.

Regards

[hienton2]

Re: HP pavillion dv6 wont boot

This is northbrige ic Matt. I never install BGA ic. Need pro . I think I must look for a motherboard.

[opamp]

Re: HP pavillion dv6 wont boot

That's a memory error get the schematic and check for proper voltages to the modules. If evrything seems right replace the northbridge

[DerStrom8]

Re: HP pavillion dv6 wont boot

That's a memory error get the schematic and check for proper voltages to the modules. If evrything seems right replace the northbridge

Thanks for looking that up. I didn't even think to

Mine's definitely different then. I'm 99.99% sure the error i'm getting has to do with the video card (chip).

[opamp]

Re: HP pavillion dv6 wont boot

What's the model number?

[opamp]

Re: HP pavillion dv6 wont boot

This is northbrige ic Matt. I never install BGA ic. Need pro . I think I must look for a motherboard.

What's the model number?

[hienton2]

Re: HP pavillion dv6 wont boot

It is dv6-1243cl

[opamp]

Re: HP pavillion dv6 wont boot

It looks like the cpu has an integrated memory controller. Try changing the cpu if the memory slots have the appropriate voltage on them.

[opamp]

Re: HP pavillion dv6 wont boot

Hey Matt, I know what you're saying those nvidia chips are a real pain the only way to really fix them is to replace them with a new one.

[nish_pinto]

Re: HP pavillion dv6 wont boot

If you want to save some bucks, you better Reball that nvidia chip. Even if you replace that motherboard, you'll get the same problem after certain usage time.

[Joseph67]

Re: HP pavillion dv6 only boot sometimes

Hi, my Pavillion dv6 does boot sometimes but most of the time does switch off before getting to boot. I have measured the voltages on the filters and they seem OK, like 3V, 5V and 12V and that is after the power led goes off.
Even plugging it in the mains just to charge the battery has the same effect i.e. the power led goes off after a short wile. This particular board does not have an NVidia chip but an ATI so I don't think it has anything to do with the video chips.
Any ideas??
Thanks.
Joseph.

[Th3_uN1Qu3]

Re: HP pavillion dv6 wont boot

It's the same thing with any BGA. The nvidia chips were problematic themselves, but any BGA can get unsoldered from the board. My money is still on the northbridge. Especially if it's AMD RS780M or RS880M, which i strongly suspect is the case in that model.

[Joseph67]

Re: HP pavillion dv6 wont boot

Thanks for the suggestion.
I've got a HOZAN spot heater with some heads of the right size so I will have a go at re flowing the chip.
Cheers, Joseph.

[highpulse]

Re: HP pavillion dv6 wont boot

reflow will no nothing to it
just had same machine , fortunelty i had this ati chip in stock , and its not working , only after replacing new chip

[senchire]

Re: HP pavillion dv6 wont boot

Yea its strange a bit with ati's 90% of the time I had to replace them because they just die.

[Joseph67]

Re: HP pavillion dv6 wont boot

Hi, I've found a brandnew mainboard for $85,99 on Ebay. Company name is Ascendtech.
Just replaced the board and running as new.
I just used better thermal paste than HP did.
I hope that this will make the difference in performance.
Cheers.