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M18X R1 fried? Videocard, BIOS advice needed.

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Hello to all big format laptop users!:alien:

I`ll try to make it as short as possible. I have the Alienware M18X R1 for about 7years, i think. It was a problematic machine all the time. But during warranty period local support fixed everything super fast and free of charge :). I even upgraded from gtx 580m sli to gtc 780m sli. And made primary hdd samsung evo ssd. Unlocked Bios. Power brick i changed 3 times by now. Battery once. And 6moths ago one of the long time ago installed 780m died ( started with artifacts on screen then refused to boot windows). Replaced that and was as happy as ever. The machine kept working stable and i pushed all i could get from it in reasonably modern titles. Even tried RDR2 on default settings, gave me 17fps :). Not sure if SLI is supported for that game. The point is it was running fine for last 6 months.

What happened:  Gaming as usual, room temp 23C. After around 2hr suddenly black screen. The laptop switched off by itself.

What i check: First checked power brick. Green light off. Unplug from wall and laptop. After plugging in wall green light back on. Connect laptop light off.

Next: Tried take out battery, unplug. And hold the PWR button for 1 min. Try to start on battery - nothing. Plug in - green light off again.

Later: after some googling found that need to try to remove video cards. Done that. OK Nice! Plug in power and it starts as nothing happened on the integrated intel video.

Found out that i one of the video cards is plugged in that triggers the power brick to trip. (the original upgrade 780m from years ago). 

Start with GPU: Insert the other one in its slot. Systems start. But immediately i notice there`s no video drivers. OK i think reinstalling and job done. Drivers reinstalled, asked for restart. After restart nothing. Still no driver.

Windows device manager: This is bogging me. it shows that i have 670M instead of 780m.:02: Windows gives Code 43 Error.

BIOS: I go into bios just to find that that it has reverted back to A05 (hows that possible?). And its so limited that i cant even choose witch video card to use. But it detects nVidia GFX.

How to get at least my single 780M to be working?! Update bios again to unlocked? Did this event fry Vbios on my other card maybe?

System: m18x R1

SLI gtx 780m

Unlocked bios (before event)

nvidia driver 443.x(or there about)

Win: 7, 64bit

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Day two update:

I tried couple of things.

1. reset BIOS to optimum defaults. No results all the same.

2. In safe mode. Device management disabled the video card. Shut off laptop. restart. Enable device. Nothing changes.

3. Safe mode again. Using DDU uninstalled geforce drivers. Restart. Install fresh driver (tick clean install option). Restart. Finally - Nvidia icon appeared in task bar. nvidia control panel works. Video card seems to be working fine :)

4. opened device manager. Still showing GTX 660. Opened Gpu-Z, showing 660. nVInspector showing 780M.:concern:. WTF is going on here!? (sreen added)

I tried to fire up game. Performance seems to be ok for single card. of course can feel the difference from SLI setup. Could it be that windows got some error? Or the card itself is reporting wrongly? But why?!

Could it be because my BIOS somehow reset itself to A05 from A05 unlocked and this is making the windows confused?

I didn`t see the use of unlocked bios anyways, as my processor is QM (locked) so i can`t do a squat even with unlocked bios. No use for me. Therefore i`m not realy interested in it atm.IMG-20210122-204740.jpg

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