thevexx1 Posted August 7, 2015 Share Posted August 7, 2015 hi all, i recently flashed my both GTX 675M and i flashed the wrong version (from techpowerup) i was running the under-volt bios made by @svl7 and i had to go stock, after successful flash in dos and reboot, 8 beeps POST with black screen, even a bios reset didn't resolve the problem, i had to remove the cards and now i'm on integrated gfx. i googled for a solution. it looks like i have to resold another vbios chip or reprogram mine. is there any other solution? or can someone give me where to find these chips ?my setupAlienware M18x R2, A10 unlocked bios, no warranty, 2x GTX 675M.thanks for helping and sorry for my bad english. Quote Link to comment Share on other sites More sharing options...
Ironjer Posted August 8, 2015 Share Posted August 8, 2015 hi all, i recently flashed my both GTX 675M and i flashed the wrong version (from techpowerup) i was running the under-volt bios made by @svl7 and i had to go stock, after successful flash in dos and reboot, 8 beeps POST with black screen, even a bios reset didn't resolve the problem, i had to remove the cards and now i'm on integrated gfx. i googled for a solution. it looks like i have to resold another vbios chip or reprogram mine. is there any other solution? or can someone give me where to find these chips ?my setupAlienware M18x R2, A10 unlocked bios, no warranty, 2x GTX 675M.thanks for helping and sorry for my bad english.did you flashed both?maybe you will need a working card in slot 1 and bad flashed in slot 2 for recovery. 1 Quote Link to comment Share on other sites More sharing options...
thevexx1 Posted August 11, 2015 Author Share Posted August 11, 2015 did you flashed both?maybe you will need a working card in slot 1 and bad flashed in slot 2 for recovery.yeah i flashed both of them, i had to remove them to switch back to igfx Quote Link to comment Share on other sites More sharing options...
MrSweet1991 Posted September 26, 2015 Share Posted September 26, 2015 SVL7 has a link in his signature for people who done a bad VBIOS flash.. That's your guru Sent from my Nexus 6 using Tapatalk Quote Link to comment Share on other sites More sharing options...
thevexx1 Posted December 26, 2015 Author Share Posted December 26, 2015 After several months of waiting, I've got my chips, and i soldered them in place as well, and hell yeah i survived the 8 beep POST with black screen. But after testing some games i still have the same problem that forced me to flash my GPUs, i still have the black-screen with BRRRRRR sound after several minutes in game, well its a black screen of death, i checked the event viewer and when it happened; the critical error was : 'kernel-Power' as a source. I've tried a completely clean windows install more than 5 times with different versions of Nvidia driver, clean/replace my RAM (2x 8gb 1600 Gkill / 2x 4 gb 1600 Samsung) no SLI cable since i just fixed only one GPU (the other still give me 8 beeps post in slot 0), i tried remove CMOS battery. same happening for me HELP ! Quote Link to comment Share on other sites More sharing options...
hans123 Posted December 27, 2015 Share Posted December 27, 2015 Please explain why you want to flash the cards? In case of the black screens after 5 min. gaming? Edit: what error of kernel power exactly? (41, etc....) 1 Quote Link to comment Share on other sites More sharing options...
thevexx1 Posted December 28, 2015 Author Share Posted December 28, 2015 23 hours ago, hans123 said: Please explain why you want to flash the cards? In case of the black screens after 5 min. gaming? Edit: what error of kernel power exactly? (41, etc....) this is the error in event viewer-------- error: critical log name: System Source: Kernel-Power Event-ID: 41 Level: Critical User: System OpCode: Info Task Category: 63 keywords: 2 ------------------ when my gpu started this weird phenomenon i thought the vbios caused it so i flashed the wrong bios version. so i lost it for couple months and now im back to the black-screen of death. thanks Quote Link to comment Share on other sites More sharing options...
hans123 Posted December 28, 2015 Share Posted December 28, 2015 10 hours ago, thevexx1 said: this is the error in event viewer-------- error: critical log name: System Source: Kernel-Power Event-ID: 41 Level: Critical User: System OpCode: Info Task Category: 63 keywords: 2 ------------------ when my gpu started this weird phenomenon i thought the vbios caused it so i flashed the wrong bios version. so i lost it for couple months and now im back to the black-screen of death. thanks Can you tell me the graphics card temperature under load? Many people with the same problem had too high temps. best regards! Quote Link to comment Share on other sites More sharing options...
thevexx1 Posted December 28, 2015 Author Share Posted December 28, 2015 Just now, hans123 said: Can you tell me the graphics card temperature under load? Many people with the same problem had too high temps. best regards! thanks for reply, i tested with fans at max speed and it didn't went more than 70 degrees C. and with untouched fan profile it went around 65-80 degrees C. Quote Link to comment Share on other sites More sharing options...
hans123 Posted December 28, 2015 Share Posted December 28, 2015 Okay.. these temperatures are normal. did you try to do an clean install of your graphics driver? Quote Link to comment Share on other sites More sharing options...
thevexx1 Posted December 28, 2015 Author Share Posted December 28, 2015 1 minute ago, hans123 said: Okay.. these temperatures are normal. did you try to do an clean install of your graphics driver? yes i did, i bought another hdd and clean install windows 7 ultimate 64 bits after a bios reset with default setting (exept AHCI for sata), i did this more than 4 times with different version of nvidia driver. Quote Link to comment Share on other sites More sharing options...
thevexx1 Posted December 28, 2015 Author Share Posted December 28, 2015 ADD: the mobo bios A10 unlocked mod when i got the black-screen, i also did a blind flash to A03 stock version after a cmos clean, and still have the same problem. Quote Link to comment Share on other sites More sharing options...
hans123 Posted December 28, 2015 Share Posted December 28, 2015 Probably you try to underclock the card with nvidiainspector. That could help. Quote Link to comment Share on other sites More sharing options...
thevexx1 Posted December 28, 2015 Author Share Posted December 28, 2015 i remember tried this, but im gonna retest with a clean windows install. This morning i did a strange test; ac cable removed, with battery installed and 100%, i tested a game that it usualy gives me black-screen within 2 minutes, i played the game till it went critical battery and shutoff without getting black-screen Quote Link to comment Share on other sites More sharing options...
hans123 Posted December 29, 2015 Share Posted December 29, 2015 Probably the card didn't run at max. Clocks without ac connected. If you underclock the card for 50 mhz it might be solved. Quote Link to comment Share on other sites More sharing options...
thevexx1 Posted December 29, 2015 Author Share Posted December 29, 2015 (edited) okay back after a day, i under-clocked my GPU from 1240 MHz to 810 MHz, thats too much i didn't test this before, i'm guess its a power problem(mobo or power brick) so after i UC i've played for 2 hours without getting a black-screen , and the surprise comes when i opened prime95(cpu bench), poof ! black-screen. i've been testing alot and what i understand is i have a power problem, and the GPU ask more power.. no response, poof black-screen ! i also flashed the unlocked bios A03 and limited my cpu (maximum battery profile, 1 core, no turbo, disabled c6 and c7 states), i played for 3 hours without GPU UC. (in attachment i uploaded a screenshot of nvidia inspector, and i get that prompt after rebooting from a black-screen) thanks for helping, i hope someone have a solution for this. Edited December 29, 2015 by thevexx1 Quote Link to comment Share on other sites More sharing options...
hans123 Posted January 3, 2016 Share Posted January 3, 2016 I personally think that the gpu is defective. Quote Link to comment Share on other sites More sharing options...
melwilya Posted February 10, 2016 Share Posted February 10, 2016 I had a GTX 675M, same problem. Needed to replace it. Quote Link to comment Share on other sites More sharing options...
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