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GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
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HeatElectronics [ 18 янв 2023, 19:20 ]
Заголовок сообщения:  GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
Hello everyone! Im right now dealing with 3 graphics cards. All same model and brand (GALAX RTX 2060 6GB). When i do run Furmark and Mining software the GPU goes black or shows artifacts. After hours struggling with them i came to the conclusion the issue is located inside the GPU. The mods output showed B0 and B1 channel with error(sometimes B0 sometimes B1). I replaced RAM chips with no success. Also removed the GPU chip and reballed it with no success. The only thing i can think about is disabling the B ram bank and solder the RAM chips to the A bank (A bank is factory empty). Unfortunately im not good with bios editing. Ram chips are SK Hynix H56C8H24AIR This seems to be a common issue regarding GALAX 2060 6GB. Thank you!
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intell2000 [ 02 фев 2023, 23:30 ]
Заголовок сообщения:  Re: GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
if hynix has "s2c" marking - with high possibility that chip's have a factory defect.

described symptoms is have coincidence with this type of factory defect.

try to change all memory chips to samsung.
HeatElectronics [ 03 фев 2023, 01:37 ]
Заголовок сообщения:  Re: GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
Thanks for the reply. What do you mean by "s2c" marking? I have Samsung k4z80325bc-hc14 to use as replacement. After replacing them, is there anything else i need to do? I was thinking about flashing bios with Samsung compatibiliy. Also i saw some users here move or modify a resistor to make them work. I don't know if this is the case. Thanks

EDIT: Nevermind, just found all my Hynix ram chips are S2C
intell2000 [ 03 фев 2023, 12:45 ]
Заголовок сообщения:  Re: GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
BIOS already have samsung support. only straps resistors replacing is needed
Joe24 [ 05 фев 2023, 11:00 ]
Заголовок сообщения:  Re: GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
HeatElectronics писал(а):
the GPU goes black or shows artifacts


Have these GPUs been undervolted?
Joe24 [ 09 фев 2023, 12:03 ]
Заголовок сообщения:  Re: GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
Your GPUs are dead from mining while undervolted. To prove this, lower the GPU clock speed by 300-500 MHz and test again. Once you lower GPU clocks enough to run stable, try overclocking the VRAM by 10-15%. A slight memory overclock shouldn't change anything if it's a GPU problem.

Samsung memory won't help you. I've got a 2060 with Samsung memory sitting right here with the exact same symptoms. Crashes, black screen, and occasional single errors on B channel in MATS. When reducing GPU frequency by 300 MHz, this card will run stable even with a 15% memory overclock. Card had been mined with at 0.85V core voltage. Raising the voltage back up to normal 1.05V does nothing to fix the damage.

Trying to achieve Bank A with BIOS is ridiculous because Bank A is fused off in the GPU itself (and that's what "KA" in the GPU part number means - bank A is permanently killed). BIOS firmware has nothing to do with it.
HeatElectronics [ 10 фев 2023, 19:46 ]
Заголовок сообщения:  Re: GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
Hello Joe24. No, these GPU's were not undervolted. They are all new, and come from a customer who has a contract with Galax to sell them new in his business. Three of these new 2060 failed in the same location, B ram bank. After some time swapping ram chips and doing reballing to gpu the problem persist. I took notice of what you said about KA marking and eventually the gpu has A channel fused off. The only solution is to replace the GPU chip or use the frequency stuck at 300mhz.

Thanks intell2000 and Joe24 for your help. I learned a lot about this. Thank you!

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HeatElectronics [ 22 янв 2024, 09:02 ]
Заголовок сообщения:  Re: GALAX RTX 2060 6GB VRAM B CHANNEL DISABLED (NEED BIOS)
lambhiu писал(а):
спасибо, мне тоже нужен этот биос


Original vBios extracted
https://drive.google.com/file/d/1yBm_V4 ... sp=sharing
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