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Disclaimer: Apologies for long post. Hello everyone(active), I have a possible huge problem with my GT70 MS-17621 ver 1.0 motherboard as I believe the GTX 680M videocard has fried the onboard video circuit of the motherboard(mobo). The mobo did work fine before after taking out thr videocard, but came with problem of the fan blowing 100% after few seconds starting up from power button press. After trying to get the videocard to work/post (without consulting any forums,at the time), I tried to make the card work again by installing back in 5 or more times in span of 1 hour. After fifth time install card back in, then take out the card, the system will not ever post anymore, the power LED will not change from white to orange anymore and nothing will post on screen display. I have tried to do blind flash of unlocked bios method but spamming pressing keys Ctrl+Home, (Ctrl+FN+PageUp)(even Shift variation) to no avail in beeps or changes in status. I believe now the issue has resided to hardware IC chip failure on the motherboard since it will not ever post anymore, with or without the videocard installed. what I am afraid now is to install new(used) videocard MSI GTX770M 3GB card in, and the motherboard could also fry up the new videocard also. I have dealt with a non-working GT70 laptop for this past month now and been reading all threads in this MSI category for solution but it seems no one has come across this problem, from dead videocard also make the mobo die along with it after a couple of more tests for any signs of electronic life. If someone can chime in about which area on the motherboard can be the problem, I would like to try and diagnosis+troubleshoot why this is happening. So, basically signs of life from MS-17621 motherboard are: Pressing Turbo, Fan, Backlight, Monitor buttons on trim panel = lights up/or fades out keyboard backlight lights up all white after pressing backlight button, pressing second time and third time turns off backlight sections and off. battery charging still works for good battery, battery light lights up when 180w ACadapter is plugged in. After about 30-45 seconds without pressing turbofan button, the fan kicks into high RPM mode and when pressing Turbo button after, the fan will not change speed and stay on high. Power button LED will remain white and never change to orange. No error code beeps ever come out of speakers since problem happened, and will not beep for blindflash attempt. I truly need the help, just knowing I bought this laptop back in December 2012 for $2,300 makes me feel this GT70 needs CPR rescue to come back to life, either by a certified gaming laptop technician or by MSI support, it has worked very well up till this past month.

Hello Everyone. This is my first post, I'm not really that well educated in the world of laptops, so please go easy, I might need a bit of hand holding here. my laptop is the GT70-0nc, its the barebones MS-1762 I believe, I bought it from a custom laptop builder online. The 675m is fried I think, BSOD all over the place, disabling it and switching to my HD4000 integrated fixed the BSOD. I'm looking into upgrading the GPU of my laptop except there's some things that have me completely baffled... 1. Which GPU's are actually compatible? - I was looking at the 680m but if there are newer gpu's that work I'd love consider those too. 2. I have read a lot about flashing my BIOS, this really confused me. I get the American Megatrends Logo on boot up, so I tried checking out their BIOS but everything i've read says use the MSI VBios? I have a good bit of experience with the hardware in my laptop, I've taken it apart quite a few times like to change thermal paste / general maintinence and upgrade my WIFI card. it's the software and compatibility issues that are really getting me stuck. Any help would be massively appreciated! Thanks