HP Pavilion 6535 Display remains black after power up

A friend asked me to fix his HP Pavilion 6535. The display monitor
remained black when powering the PC up. I followed the instructions
from HP website to reset the BIOS (ie. on power up after keyboard
lighst turn on click on F1, wait 5 seconds, then click on F5, wait 5
seconds, then click on F10). I tried it and it worked. He brought it
back 1 week later with the same problem. This time I followed the same
solution with no luck. I tried removing the RTC Battery and cleared
the CMOS using the J6 jumpers. Still the PC won't reset back to the
original BIOS configuration. I want to upgrade the CMOS and the
chipset, but I need to see the display monitor first in order to
upgrade. Can someone please help me?

Art,

Let's get the horse before the cart. First make sure that the motherboard and
the rest of the system are working. At this point, with nothing displaying on
the monitor when the system is powered up, there is some diagnosis to be done.

Are there any beeps when the system is powered up? Are all the memory modules
seated well in their sockets? Do you hear some clicking noises as the hard
drive starts spinning and recalibrates itself?

In short, possibly the motherboard has failed. Or the processor. Or memory.

One word about BIOS upgrades: caution. What will be accomplished by a BIOS
upgrade? Does it fix a known problem that you have encountered? Does it add a
needed feature or two? If there is not a positive answer to these questions,
why do a BIOS upgrade, which does have some risk involved with the process.

.... Ben Myers

On 17 Jan 2004 22:53:39 -0800, (Art) wrote:

>A friend asked me to fix his HP Pavilion 6535. The display monitor
>remained black when powering the PC up. I followed the instructions
>from HP website to reset the BIOS (ie. on power up after keyboard
>lighst turn on click on F1, wait 5 seconds, then click on F5, wait 5
>seconds, then click on F10). I tried it and it worked. He brought it
>back 1 week later with the same problem. This time I followed the same
>solution with no luck. I tried removing the RTC Battery and cleared
>the CMOS using the J6 jumpers. Still the PC won't reset back to the
>original BIOS configuration. I want to upgrade the CMOS and the
>chipset, but I need to see the display monitor first in order to
>upgrade. Can someone please help me?

Ben - very interesting, just thought i would make a mention regarding
the BIOS comment you made. i recently used an Epox board which had a
problem when running that meant the modem couldn't dial out. Nothing
was displayed in the support or BIOS notes to indicate that a BIOS
update would resolve the problem and I was unaware of that resolution
until Epox support answered a posting to a NG I made on the subject.
How are we supposed to know whether these things are worth doing if
they (the manufacturers) cannot be honest about the problems and the
fixes for them?

Here am I loking around for undated info regarding a HP Pavilion 7965
motherboard which i replaced in May 2003 for a customer. Then that
research suggested a new mobo would cure the pc of hanging at the blue
HP screen. It did, or something else changed and it cured at the same
time but now the same problem is back and this is with a board that I
was told had been updated to cure the original board's problem.

In looking for others with the same problem, I saw another posting you
made regarding F1, F10 and am about to try that but how will it work
for if it fixes? it really isn't good enough for the manufacturer to
wash their hands in the way that do.

Chris
Always trying to learn, always willing to teach



ben_myers_spam_me_not @ charter.net (Ben Myers) wrote in message news:<>...
> Art,
>
> Let's get the horse before the cart. First make sure that the motherboard and
> the rest of the system are working. At this point, with nothing displaying on
> the monitor when the system is powered up, there is some diagnosis to be done.
>
> Are there any beeps when the system is powered up? Are all the memory modules
> seated well in their sockets? Do you hear some clicking noises as the hard
> drive starts spinning and recalibrates itself?
>
> In short, possibly the motherboard has failed. Or the processor. Or memory.
>
> One word about BIOS upgrades: caution. What will be accomplished by a BIOS
> upgrade? Does it fix a known problem that you have encountered? Does it add a
> needed feature or two? If there is not a positive answer to these questions,
> why do a BIOS upgrade, which does have some risk involved with the process.
>
> ... Ben Myers