more info on raedon display card - need help

[jimnto]

Hey
I had the motherboard out and was preparing to reflow the chip but I am not sure and I need help. I put it back together to try and force the symptoms.
I can't get it to happen by flexing. It seems to be time related. Now the display goes very very very fussy and then more and more garbled and then re-boots. Or goes to sleep and then when i resume - it is OK.

Is it heat build up or memory failing? The thinkpad PC Doctor utility doesn't ever find problems with the video.

How can I test to see what the issue is.

on another note - when I put it back together I stripped a screw holding the display on and i have three left over.

[censored] - i wish I knew!!

JN

[richk]

It might be failing video memory chip. In that case, reflow will not help. Does external display work the same? How long are the screws? How much did you take apart?

[rbena]

Is it heat build up or memory failing?

Hi JN -

I've posted a reply on the previous thread you'd started. Would be good if you could post your findings there. Many thanks.

[jimnto]

I reflowed - melted some parts and bought a used broken r40 to get the parts. WEll then the broken one had spilled coffee on the mb and so what the hell. i migrated all my guts from my 14"r40 over to the 15" r40.

I am a happy guy!

JN