m9750 Strange problem ... very weird problem...

grr1016 · 10-30-2009, 10:53 PM

Ok I inherited a m9750 from a client who didnt want to pay to get it repaired. Most of the time when you turn it on, all the lights on the case come on but NOTHING on the screen, no bios etc. I can hear windows start but again, nothing on the screen. Occasionally it will boot like normal.When it went into windows the first time after the problem I noticed the time was reset. I replaced the motherboard cmos battery . Same problem started after a short time. I reinstalled windows, tested the memory, which came out w/o errors. Same problem.
I also tried to output the video to a monitor when it was in windows but nothing on screen, (I know I was in windows cause I can hear it), nothing happened. It will output to a monitor when I get in to windows normally.

It seems to work normally more often I fool around with the main laptop battery. (take it out put it in) try AC only etc. This however may be a coincidence. Anyone experience this?
Thanks for any input.

qhn · 10-31-2009, 03:16 AM

Taking your fumbling with battery and adapter as some sort of work-around, I would first try also with another battery - OEM preferably - and another OEM adapter and see.

cheers ...

grr1016 · 10-31-2009, 09:42 AM

I initially thought of this as well. I tried another power supply today, not OEM, with same result. A OEM PSU and battery will be more difficult to procure in the near future, they seem to be hard to locate. I cannot see why the system time resets with a new cmos battery installed on the motherboard. This should be independent of the AC adapter/ battery.

qhn · 10-31-2009, 09:53 AM

CMOS battery does run down. Or a bad "new" CMOS (ouch)?

cheers ...

littlefrankus · 10-31-2009, 02:45 PM

I would unplug that battery and the the power cord and then hit the power button for about 10 seconds to drain the power in the machine... then hook the battery back up and the power cord and then boot up and see what happens...

grr1016 · 11-01-2009, 08:25 PM

I disconnected the power, remove battery and disconnected the new cmos battery held down power button for 2 min, waited 1/2 hr, plugged all in. I was able to restart 6 times before the problem started again. I followed the same procedure and I am typing on it right now. Why would this keep happening? I dont have another cmos battery today, but I seriously doubt a bad battery out of the package. Bad cmos? I was wrong btw, it's a 9700i, not a m9750.

littlefrankus · 11-01-2009, 08:34 PM

I wouldnt remove the cmos battery when doing it and see what that happens...

grr1016 · 11-01-2009, 10:04 PM

Should have mentioned, I tried this many times with no luck, It only works when I disconnect the cmos battery and reconnect. It works for a 5-10 restarts then the same problem.

littlefrankus · 11-01-2009, 10:13 PM

has your ram checked out fine...if it did I would reseat and swap them around...

grr1016 · 11-01-2009, 10:48 PM

ramtest was fine, reseated , I even tried 2 other sticks

littlefrankus · 11-01-2009, 10:50 PM

very weird problem...

10-30-2009, 10:53 PM	#1
grr1016 Registered User Join Date: Aug 2009 Posts: 8 Credits: 293	m9750 Strange problem Ok I inherited a m9750 from a client who didnt want to pay to get it repaired. Most of the time when you turn it on, all the lights on the case come on but NOTHING on the screen, no bios etc. I can hear windows start but again, nothing on the screen. Occasionally it will boot like normal.When it went into windows the first time after the problem I noticed the time was reset. I replaced the motherboard cmos battery . Same problem started after a short time. I reinstalled windows, tested the memory, which came out w/o errors. Same problem. I also tried to output the video to a monitor when it was in windows but nothing on screen, (I know I was in windows cause I can hear it), nothing happened. It will output to a monitor when I get in to windows normally. It seems to work normally more often I fool around with the main laptop battery. (take it out put it in) try AC only etc. This however may be a coincidence. Anyone experience this? Thanks for any input.

10-31-2009, 03:16 AM	#2
qhn Registered User Join Date: Mar 2006 Posts: 20,059 Reviews: 8 Benchmarks: 18 Credits: 54,574	Taking your fumbling with battery and adapter as some sort of work-around, I would first try also with another battery - OEM preferably - and another OEM adapter and see. cheers ... __________________ m6805@3700; SZ71WN/C ; Macbook 2ghz/4gig/250gb/superdrive; 7811FX are u Folding@Home? - Firefox Beta - MediaPortal "the" Media Centre/HTPC!

10-31-2009, 09:53 AM	#4
qhn Registered User Join Date: Mar 2006 Posts: 20,059 Reviews: 8 Benchmarks: 18 Credits: 54,574	CMOS battery does run down. Or a bad "new" CMOS (ouch)? cheers ... __________________ m6805@3700; SZ71WN/C ; Macbook 2ghz/4gig/250gb/superdrive; 7811FX are u Folding@Home? - Firefox Beta - MediaPortal "the" Media Centre/HTPC!

10-31-2009, 02:45 PM	#5
littlefrankus I just probed you! Join Date: May 2007 Posts: 2,305 Credits: 10,696	I would unplug that battery and the the power cord and then hit the power button for about 10 seconds to drain the power in the machine... then hook the battery back up and the power cord and then boot up and see what happens... __________________ m9750: 2.0 Intel Core2 Duo/Tv Tuner/Windows XP MCE/1440 x 900 LCD/2GB Dual Channel DDR2/512MB 7950 GTX/ 3 Year Warranty ordered m9750 on MAY 26 Phase 2: 5/26/07 Phase 5: 6/28/07 Phase 6: 6/29/07 Phase 8: 7/03/07 Phase 9: 7/03/07 Landed 7/06/07 3dmark06:6147 3dmark 05: 9492 3dmark03 : 21019

11-01-2009, 08:34 PM	#7
littlefrankus I just probed you! Join Date: May 2007 Posts: 2,305 Credits: 10,696	I wouldnt remove the cmos battery when doing it and see what that happens... __________________ m9750: 2.0 Intel Core2 Duo/Tv Tuner/Windows XP MCE/1440 x 900 LCD/2GB Dual Channel DDR2/512MB 7950 GTX/ 3 Year Warranty ordered m9750 on MAY 26 Phase 2: 5/26/07 Phase 5: 6/28/07 Phase 6: 6/29/07 Phase 8: 7/03/07 Phase 9: 7/03/07 Landed 7/06/07 3dmark06:6147 3dmark 05: 9492 3dmark03 : 21019

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10-31-2009, 09:42 AM	#3
grr1016 Registered User Join Date: Aug 2009 Posts: 8 Credits: 293	I initially thought of this as well. I tried another power supply today, not OEM, with same result. A OEM PSU and battery will be more difficult to procure in the near future, they seem to be hard to locate. I cannot see why the system time resets with a new cmos battery installed on the motherboard. This should be independent of the AC adapter/ battery.

11-01-2009, 08:25 PM	#6
grr1016 Registered User Join Date: Aug 2009 Posts: 8 Credits: 293	I disconnected the power, remove battery and disconnected the new cmos battery held down power button for 2 min, waited 1/2 hr, plugged all in. I was able to restart 6 times before the problem started again. I followed the same procedure and I am typing on it right now. Why would this keep happening? I dont have another cmos battery today, but I seriously doubt a bad battery out of the package. Bad cmos? I was wrong btw, it's a 9700i, not a m9750.

11-01-2009, 10:04 PM	#8
grr1016 Registered User Join Date: Aug 2009 Posts: 8 Credits: 293	Should have mentioned, I tried this many times with no luck, It only works when I disconnect the cmos battery and reconnect. It works for a 5-10 restarts then the same problem.

11-01-2009, 10:13 PM	#9
littlefrankus I just probed you! Join Date: May 2007 Posts: 2,305 Credits: 10,696	has your ram checked out fine...if it did I would reseat and swap them around... __________________ m9750: 2.0 Intel Core2 Duo/Tv Tuner/Windows XP MCE/1440 x 900 LCD/2GB Dual Channel DDR2/512MB 7950 GTX/ 3 Year Warranty ordered m9750 on MAY 26 Phase 2: 5/26/07 Phase 5: 6/28/07 Phase 6: 6/29/07 Phase 8: 7/03/07 Phase 9: 7/03/07 Landed 7/06/07 3dmark06:6147 3dmark 05: 9492 3dmark03 : 21019 Last edited by littlefrankus; 11-01-2009 at 10:15 PM.

11-01-2009, 10:48 PM	#10
grr1016 Registered User Join Date: Aug 2009 Posts: 8 Credits: 293	ramtest was fine, reseated , I even tried 2 other sticks

11-01-2009, 10:50 PM	#11
littlefrankus I just probed you! Join Date: May 2007 Posts: 2,305 Credits: 10,696	very weird problem... __________________ m9750: 2.0 Intel Core2 Duo/Tv Tuner/Windows XP MCE/1440 x 900 LCD/2GB Dual Channel DDR2/512MB 7950 GTX/ 3 Year Warranty ordered m9750 on MAY 26 Phase 2: 5/26/07 Phase 5: 6/28/07 Phase 6: 6/29/07 Phase 8: 7/03/07 Phase 9: 7/03/07 Landed 7/06/07 3dmark06:6147 3dmark 05: 9492 3dmark03 : 21019

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