Is this gpu or vram failure? Thx

[myth77]

Ok, someone with expirience...what is this fault?

[rediii]

Re: Is this gpu or vram failure? Thx

Ok, someone with expirience...what is this fault?

same results with external monitor?

[myth77]

Re: Is this gpu or vram failure? Thx

same results with external monitor?

That is external...hdmi port....The original lcd is broken. Gpu on laptop is gtx1070. The funny thing is that that upper right square and bottom is working fine. So maybe a one or two gpu ram moduls gone bad...but not sure.

[rediii]

Re: Is this gpu or vram failure? Thx

That is external...hdmi port....The original lcd is broken. Gpu on laptop is gtx1070. The funny thing is that that upper right square and bottom is working fine. So maybe a one or two gpu ram moduls gone bad...but not sure.

test with mats

[macattack600]

Re: Is this gpu or vram failure? Thx

Not 100% certain but the fact your getting image in 2 corners leans more to VRAM .

Did you start with replacing thermal paste?
If no change...

your best bet its start by
Reflowing all vram see if problem clears up .
If not replace 2 at a time from donor, buy stencil.

[myth77]

Re: Is this gpu or vram failure? Thx

for the future record it was one bad vram chip. I was also lucky...second one i replaced.