The laptop suddently and abruptly shut down while watching a video file. Check the owner's manual on reset of those modes. Also, how was the laptop shut down from its last use? If left in 'sleep' or 'hibernation' mode too long, it could have shut down or lost its restart cache. The real-time clock may stop if the BIOS battery is dead.Īnd many systems won't show life signs if the real-time clock is DOA. But the BIOS battery is good for about 3~4 years, depending on use. That battery may be a rechargeable type, not needing replacement. ![]() But there also is a 'sleep' battery that keeps the OS in memory when not active. When was the last time the BIOS battery was changed? Most laptops have three, one being the main power battery. ![]() Medion Akoya P6648, it doesn't turn on at all. Hannstar K Mv 4 94v 0 Manual 8,6/10 7135reviews
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