y580 cmos battery

[artesby 0]

hello

i was playing with my bios gpu\display settings but smth went wrong and i got black screen

i know that i can reset my bios to default pulling out the bios battery

but i cant find it on board

please tell me where its located

[Reanimax 3 448]

@artesby, there is no cmos battery on board. Did you try to connect external display?

[artesby 0]

@artesby, there is no cmos battery on board. Did you try to connect external display?

i dont exactly remember marker in which i changed the value

there was smth like "video settings" -> "display settings" (graphic adapter priority? ) and there was select [ igfx, peg, pci ] i changed from igfx to pci

i tried to connect default vga display, nothing happened

well i found my bios: http://imgur.com/a/v6t36#7

advanced -> video configuration -> smth there

i tried f9 enter f10 enter, that didnt work out

looks like reseting bios doesnt touch this variable 

[Reanimax 3 448]

@artesby, you ask on lenovo.com. If you search through forum there you will see few people with same question and there is no solution.