02-07-2012 09:59 PM
Have a problem with my wife's Lenovo S10-2. Yesterday, after a 8-10 hours of netbook's inactivity (w/o heavy tasks), I found it deadly hanged. I turned it off by pressing a Power button by ~5 secs.
After turning on again, I see only blank screen with non-blinking cursor at top-left corner. No Lenovo's splash screen, no beeps, no reaction on F2 or other keys. It's still can be powered off by pressing Power for 5 secs.
Note: the cooler starts up with power on, but stops at same time as the blank screen with cursor appears.
Removing HDD and GSM card did not bring any effect. W/o RAM, netbook also doesn't say any beeps, but the screen is all black, with no backlight.
Tried to clear CMOS by removing a battery, power cord and pressing Power by 60 secs. No changes at all.
I also tried to enter BIOS recovery mode by pressing Fn-B while connecting power cord w/o battery. It starts with cooler working constantly, black screen (as described), but still no beeps. No SD or USB activity too -> no BIOS ROM search on external media.
The cursor is not blinking, does it mean anything? Could it be hanged by overheating in 2-3 seconds after power on?
I saw similar problems ten years ago with Intel Celeron 600, which halted after 8-10 seconds after powering on, because there were no thermal grease on CPU at all.
Any suggestions? What should I check?
P.S. Sorry for bad English, that's not my native language)
02-08-2012 03:06 AM
02-08-2012 09:00 PM
my S10-2 have second internal RAM slot, not a soldered RAM, and it's empty. I tested RAM on another notebook, no problems were found. Can it be BIOS problem? I heared that (on another notebooks) Fn-B may not working because of invalid BIOS checksum (when it corrupted), in that case it can be restored only with external SPI programmer.
Unfortunately, the warranty was expired. So I have to search local solution for my problem.
02-09-2012 11:00 PM
No beeps at all, with or without RAM. Although, I didn't hear any beeps in normal boot too, since the sound volume was muted via FN keys. Maybe it's still muted. Is there a way to reset master volume?
I brought the netbook to local service yesterday, their tech thinks it may be south bridge, or really corrupted BIOS.
02-11-2012 06:56 AM