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Hi guys , like you can see Im begginer, student and noob from east Eu that accidentaly bought clevo p170hmx few months ago. Specs are P170hm board i7 2760qm 8gb ddr3 gtx580m 2x 500gb SSD FSP standard 220W PSU (I think its 220w 19v-11.57A) Everything was fine till this weekend I was playing doom4 for 3 hours and Pc just crashed with black screen with sound still runing , than fan went loud with 6 loud beeps . Who crashed said it was TLDR bug. Wrom that point laptop works fine but when I start any game or furmark after few seconds to few minutes it crash with same symptoms. What I did try is , tldr change from 2 to 8 and its same, 10 different drivers with DDU, system reinstall, flashed original vBios on card (i noticed that after first crash memory would stuck to 130-300mhz in games and furmark , after flash it was normal all again but still crash after 1min or less ) Now what I did that gave me result is lowering GPU and memory clocks from 620/1500 to 480/1333 now it looks stable. I couldn find vBios with higher voltages to flash cos Im noob and I did try bios mod with Nbitor but allways ended up with corrupted bios that didnt want to load from cmd with nvflash. I didnt try to flash bios for mobo (p170hm) cos I cant find one and that lead me to registration on this forum. My gustion is whats wrong with my notebook and how to fix it...btw I found nvidia Quadro 3000m but dont know will it work on p170hm, If I cant get p170hm to optimal state Ill go with exp Gdc beast and one hd7970 from my desktop cf system just for fun. Sry for bad English.