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Hi guys, i have m18x R1 model with A05 unlocked bios and i try to connect ati mobility 4870 card/s. I read ton of posts but people that seem to have similar problem with different card didn't post any solution. Case is when i connect 4870 i get black screen and 8 beeps. When i use only integrated graphics (no cards installed) laptop is starting normally. When i use integrated graphics (nvidia card installed as master) laptop is starting normally. When i use nvidia card installed as master laptop is starting normally. When i use nvidia card installed as master and ati 4870 installed as slave laptop is starting normally but in devices manager i see there is error 10 with ati card. When i use ati 4870 card installed as master i get 8 beeps and black screen. I tried to google for answers but unfortunatelly didn't find any. Do you know if that old card can work in m18x ? Maybe it's not supported at all? Do you have any ideas what else can i try?