EVGA GTX 770 2Gb SC /w ACX

Summary

  • Resistances
    • VCore – 5.3
    • VMem – 119.4 (Hynix H5GQ2H24AFR-R2C)
    • PEX – 179
    • 5V – ?
    • 3.3V – 700
    • 12V – 6K+
  • Working after speculative VRAM reflow, to fix, need to replace or re-ball this chip.
  • Chip A1 shows as faulty in MATS
  • Replacement appears successful
mats version 400.184.  Testing GK104 with 20 MB of memory starting with 0 MB.

Read    Error Count: 0
Write   Error Count: 16076
Unknown Error Count: 0

=== MEMORY ERRORS BY SUBPARTITION ===
SUBPART READ ERRORS WRITE ERRORS UNKNOWN ERRS
------- ----------- ------------ ------------
FBIOA0            0            0            0
FBIOA1            0        16076            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

Failing Bits: 
   A052 


=== 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. ?
- --- ----------- ------------ ------------ ------ ------ ------
A 052           0        16076            0    188  15888      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
   ADDRESS EXPECTED   ACTUAL  REREAD1  REREAD2 FAILBITS TPSBE  ROW COL BIT(s)
   ------- --------   ------  -------  ------- -------- -----  --- --- ------
0001356c80 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA120 009a 024   A052
0001356c84 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA121 009a 024   A052
0001356c88 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA122 009a 024   A052
0001356c8c aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA123 009a 024   A052
0001356c90 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA124 009a 024   A052
0001356c94 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA125 009a 024   A052
0001356c98 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA126 009a 024   A052
.........
0000550abc aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA107 002a 03d   A052
000055ba80 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA1c0 002a 024   A052
000055ba84 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA1c1 002a 024   A052
000055ba88 aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA1c2 002a 024   A052
000055ba8c aaaaaaaa aabaaaaa aabaaaaa aabaaaaa 00100000 WA1c3 002a 024   A052
If you are getting failure for first MB of FB then try option -no_scan_out
Error Code = 00000001 

                                        
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The chip is Hynix H5GQ2H24AFR-R2C

EVGA GTX 770 2Gb SC /w ACX – Faulty VRam

Followed procedure Graphics Card VRAM Chip Replacement Procedure, seems successful!

Testing

  • Kombuster HD, Furmark HD – OK
  • GPU temp shows as a nice low 61 degrees C under load, but very hot on the back of the card behind the VRM area (don’t think there were originally any thermal pads here?).
  • Heaven HD running well.
  • 3D TimeSpy – runs very slow, scored ‘Great’, don’t think that’s valid, but at least it didn’t crash.