Zotac mini 1080ti and Aorus 1080 TI

[hashwood]

Hello,

I am new in GPU repair, I work on DSLR and Lenses. But I have multimeter, SMD rework, BGA rework and some electronics experience. I have two boards and I don't know if they have bad GPU, so they are useless.

1st. Zotac mini 1080TI (picture with voltage and impedance on all coils)


GPU was reballed, GPU heats up but not like normal working cards more slower, it shows in device manager, but gives blue screen when installing drivers. What's strange is that all mosfet drivers gets relatively hot: uP1959 .  Here is a picture with Thermal camera with the mosfter drivers:





2nd: Aorus 1080TI (picture with voltage and impedance on all coils)


GPU heats up but very very slow, not showing in device manager. But voltages are ok.

Can someone please help me.

[m k]

GPU was reballed,

I think you should do it again.
It's not an easy thing.

In case you like to check what has happened elsewhere you can search Xbox 360 ring of death.

[hashwood]

thanks for your reply. This is my plan. Still it's very strange that the mosfet controllers are heating up like that.

my plan is to take the GPU and put it on Aorus. I discovered a bad connection pin on Aorus gpu. It seems these pascal chips are very bad made....

[wraper]

thanks for your reply. This is my plan. Still it's very strange that the mosfet controllers are heating up like that.

my plan is to take the GPU and put it on Aorus. I discovered a bad connection pin on Aorus gpu. It seems these pascal chips are very bad made....

It's not a bad connection but consequences of you removing it. BTW reballing GPU is lame and counterproductive unless you have a good reason to do so. You should have first run Nvidia MATS tool and check if RAM is OK and check VRM phases with oscilloscope if you cave any concerns there.

[wraper]

And AFAIK this GPU is not right. It should be GP-102-K6-A1, not GP-102-K1-A1 with this RAM IC not populated. Also according to compound color around the die, GPU was overheated while soldering or soldered too many times.

[wraper]

K1 no memory chip in channel A0 (Low), K2 - B0, K4 - D0, K5 - E0, K6 - F0

Memory channel numbering

[hashwood]

thanks for our reply.


Thanks for your re

I also think this is a problem, I put a K1 chip and removed a K6.

After I replaced P9511P on Zotac, now the chip heats a little faster and after 30 seconds it powers the monitor with black screen.

In MODS 400 I receive segmentation fault. Invalid register 0x1480001

The Aorus chip was not heated by me. I measured connection on pci line, pin 3 and 4 and pin 3 was not connected. After I removed it the same goes on chip (as in the picture). 

What should I do now? Should I change the memory on Zotac? or should I put the GPU A1 on Aorus ?

Or the GPU is dead?

[hashwood]

here is report.txt on zotac

=== MEMORY ERRORS BY SUBPARTITION ===
SUBPART READ ERRORS WRITE ERRORS UNKNOWN ERRS
------- ----------- ------------ ------------
FBIOA0            0            0            0
FBIOA1            0            0            0
FBIOB0            0            0            0
FBIOB1            0            0            0
FBIOC0            0            0            0
FBIOC1            0            0            0
FBIOD0            0            0            0
FBIOD1            0            0            0
FBIOE0            0            0            0
FBIOE1            0            0            0
FBIOF0            0      1435776            0
FBIOF1            0       297162            0

[wraper]

here is report.txt on zotac

No wonder. Since there is no chip where it should be of F0. You need to either replace GPU with a proper one or move a RAM chip and any missing supporting passives. RAM chip on F1 channel likely is faulty or there is some other issue on this channel.

[hashwood]

do you have a picture please with 1080TI, the one you posted is with 1080

[hashwood]

and what supporting passives are you talking about? Zotac mini board is populated on any memory chip, even if it's missing.

[wraper]

do you have a picture please with 1080TI, the one you posted is with 1080

That's not 1080. But you can see the order, it's the same for any Nvidia graphics card. Counterclockwise A1, A0, B1, B0.... F1, F0. F0 is the missing chip, F1 is the chip next to it.

[wraper]

and what supporting passives are you talking about? Zotac mini board is populated on any memory chip, even if it's missing.

If there are all of the needed components, including on the opposite side, then you can simply populate the missing chip.

[hashwood]

F1 is bad? or the errors are because F0 is missing ?

[wraper]

or the errors are because F0 is missing ?

no

[hashwood]

so F1 is bad ?

[wraper]

so F1 is bad ?

Either bad chip, bad connection or GPU fault on this channel.

[hashwood]

hope that potting F0 will get some video signal...

[hashwood]

now I get this:

=== MEMORY ERRORS BY SUBPARTITION ===
SUBPART READ ERRORS WRITE ERRORS UNKNOWN ERRS
------- ----------- ------------ ------------
FBIOA0            0            0            0
FBIOA1            0            0            0
FBIOB0            0            0            0
FBIOB1            0            0            0
FBIOC0            0            0            0
FBIOC1            0            0            0
FBIOD0            0            0            0
FBIOD1            0            0            0
FBIOE0            0            0            0
FBIOE1            0            0            0
FBIOF0            0            0            0
FBIOF1            0       297215            0


and still no video signal

[hashwood]

changed that chip, still

FBIOA0            0            0            0
FBIOA1            0            0            0
FBIOB0            0            0            0
FBIOB1            0            0            0
FBIOC0            0            0            0
FBIOC1            0            0            0
FBIOD0            0            0            0
FBIOD1            0            0            0
FBIOE0            0            0            0
FBIOE1            0            0            0
FBIOF0            0            0            0
FBIOF1            0       297189            0

[wraper]

Attach a whole document, there is more detailed data.

[hashwood]

OK, I will do that but tomorrow, I left work and the document is there. Thanks for all your help

Does the card work with all 12 memory chips in place? I added F0, but should I take out the other? I left it in place, so Zotac has 12 memory chips in place...

[hashwood]

hello, here are the files

report.txt is before installing F0, then report1.txt is after installing F0, and report2.txt is after replacing F1

[wraper]

Probably GPU is soldered badly or it's faulty. After RAM replacement the same bits are failing.

[hashwood]

thanks, so I should try reflow or reball again?