Ремонт: Ноутбуков, Компьютеров
https://vlab.su/

PALIT GTX1080 DUAL 8G GDDR5X 256 BIT DVI 3-DP HDMI
https://vlab.su/viewtopic.php?f=48&t=118606		 Страница 1 из 1
Pandemonium6 [ 02 сен 2021, 02:35 ]
Заголовок сообщения:  PALIT GTX1080 DUAL 8G GDDR5X 256 BIT DVI 3-DP HDMI
Всем привет :-)

Palit
GTX1080 DUAL 8G GDDR5X 256 BIT DVI 3-DP HDMI
P/N: NEB1080015P2-1045D MADE IN CHINA

Under 1.8V inductor on the bottom side there are some components.

SU3: 08=F2L
SQ13: 21J09
SQ10: 702 4
SQ11: 702 4 but different pinout

Please help identify them.
madking [ 02 сен 2021, 04:30 ]
Заголовок сообщения:  Re: PALIT GTX1080 DUAL 8G GDDR5X 256 BIT DVI 3-DP HDMI
Pandemonium6 писал(а):
SU3: 08=F2L

RT7296FGJ8F
Pandemonium6 писал(а):
21J09

viewtopic.php?f=48&t=117228&hilit=%2A21J%2A
Pandemonium6 писал(а):
SQ10: 702 4
SQ11: 702 4 but different pinout

DUAL N-MOSFET 2N7002
Pandemonium6 [ 02 сен 2021, 04:51 ]
Заголовок сообщения:  Re: PALIT GTX1080 DUAL 8G GDDR5X 256 BIT DVI 3-DP HDMI
Thank you very much :-)

Now is eureka :-)

https://gofile.io/d/GsoALj

1.8V buck converter produces this what on the movie and a reset circuit resets something behind it due to brown outs on power. This ringing starts when the lower mosfet stops pushing to ground and there should not be such oscillations on the input to the inductor. Also a frequency of this 1.8V phase got crazy and dancing faster and slower.
Symptoms: Undetected completely, undetected stops at 2d, detected mats PASS when board is cold, detected mats FAIL, sometimes black screen.
It is still 870 ohms on this rail so it is almost the moment of a sudden failure.
Let me replace it before it will be too late :-)

Are there any replacement ICs of this buck converter?
Pandemonium6 [ 02 сен 2021, 11:11 ]
Заголовок сообщения:  Re: PALIT GTX1080 DUAL 8G GDDR5X 256 BIT DVI 3-DP HDMI
I have to reedit what I wrote above, because it will be a little bit misleading for future readers.
All voltages and transients are good.
What happened to the card? Owner says that during a game play he got massive artefacts for a second and his monitor went black.

I have a strange problem. This card is sometimes undetected with normal not detection beeps, sometimes stays at 2b and no beeps, sometimes boots and MATS PASSes but sometimes it boots but MATS FAILs.

Sometimes when computer boots you hear single - normal beep from the pc speaker.
Sometimes very short beeps within the the time frame of the single beep. Some of you will use translator so I describe it again.
Instead of one 500 ms beep when the card is normally recognized I get 2-5-7 very short beeps within this half a second. It looks like cables not contacting properly but maybe it is a symptom of a failure you had before and you already know?

Anyway sometimes I have good boots with PASS in mats, when it fails mats reports only one error, nothing more. It looks like something got reset or was disconnected. Every fail has a different memory.

When boots normally
Код: Выделить всё
=== 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


When boots normally but fails mats
Код: Выделить всё
=== 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            1            0            0
FBIOD1            0            0            0

Failing Bits:
   D017 D019 D021 D023 D025 D027 D029 D031


=== MEMORY ERRORS BY BIT ===
P : Partition (FBIO)
                                            READ 0 READ 1 READ ?
P BIT READ ERRORS WRITE ERRORS UNKNOWN ERRS EXP. 1 EXP. 0 EXP. ?
- --- ----------- ------------ ------------ ------ ------ ------
D 017           2            0            0      0      2      0
D 019           2            0            0      0      2      0
D 021           2            0            0      0      2      0
D 023           2            0            0      0      2      0
D 025           2            0            0      0      2      0
D 027           2            0            0      0      2      0
D 029           2            0            0      0      2      0
D 031           2            0            0      0      2      0


=== MEMORY ERRORS BY ADDRESS ===
ADDRESS : Failing memory address, or buffer offset if starting with 'X+'
T : Type of memory error: W = write, R = read
P : Partition (FBIO)
S : Subpartition
B : Bank
E : Beat
U : PseudoChannel
   ADDRESS EXPECTED   ACTUAL  REREAD1  REREAD2 FAILBITS TPSBEU  ROW COL                                  BIT(s)
   ------- --------   ------  -------  ------- -------- ------  --- ---                                  ------
0000459610 55555555 ffffffff 55555555 55555555 aaaaaaaa RD0701 0008 049 D017,D019,D021,D023,D025,D027,D029,D031
If you are getting failure for first MB of FB then try option -no_scan_out
Error Code = 00000001


Another fail:
Код: Выделить всё
=== 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            1            0            0
FBIOC1            0            0            0
FBIOD0            0            0            0
FBIOD1            0            0            0

Failing Bits:
   C001 C003 C005 C007 C009 C011 C013 C015


=== MEMORY ERRORS BY BIT ===
P : Partition (FBIO)
                                            READ 0 READ 1 READ ?
P BIT READ ERRORS WRITE ERRORS UNKNOWN ERRS EXP. 1 EXP. 0 EXP. ?
- --- ----------- ------------ ------------ ------ ------ ------
C 001           2            0            0      0      2      0
C 003           2            0            0      0      2      0
C 005           2            0            0      0      2      0
C 007           2            0            0      0      2      0
C 009           2            0            0      0      2      0
C 011           2            0            0      0      2      0
C 013           2            0            0      0      2      0
C 015           2            0            0      0      2      0


=== MEMORY ERRORS BY ADDRESS ===
ADDRESS : Failing memory address, or buffer offset if starting with 'X+'
T : Type of memory error: W = write, R = read
P : Partition (FBIO)
S : Subpartition
B : Bank
E : Beat
U : PseudoChannel
   ADDRESS EXPECTED   ACTUAL  REREAD1  REREAD2 FAILBITS TPSBEU  ROW COL                                  BIT(s)
   ------- --------   ------  -------  ------- -------- ------  --- ---                                  ------
0001167f38 55555555 ffffffff 55555555 55555555 aaaaaaaa RC0640 0022 069 C001,C003,C005,C007,C009,C011,C013,C015
If you are getting failure for first MB of FB then try option -no_scan_out
Error Code = 00000001
Страница 1 из 1 Часовой пояс: UTC + 4 часа
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/