UNSOLVED
PL
Precision Laptops
5 Posts
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225012
October 13th, 2011 09:00
M4600 random power down
We have a group of M4600's experiencing random power shutdowns. These shutdowns do not generate BIOS logs, or logs in the event viewer. Diagnostics run cleanly. We've eliminated heat issues, and there are no thermal logs in the BIOS. We sometimes see graphics distortion prior to power downs. Having Optimus on or off doesn't seem to affect the power offs. But we notice that the PCs shutdown more often when the USB ports are in use. We've deployed 20+ M4600's all using a coporate image of Win7x64 Enterprise. Only about 7 of these are experiencing these random shutdowns/power offs. These affected PCs will run for a couple days without issues, then have a random shutdown(s).
Any suggestions on how to resolve this issue would be appreciated.
I am having this same problem. I have read on another post that it is related to the battery. A coworker of mine experienced the same symptoms. He removed the battery, checked the contacts , and then put it back in. He hasn't experienced a problem since (several weeks). I've just done the same thing since I had two shutdowns today.
It just happened to me this morning. Just a blink and the laptop was completely off.
I've been running wireless for months and usually have multiple USB devices going.
This is the first shutdown I had. I hope it doesn't start happening more.
I will keep an eye on this board to see if any final solution is found.
scadd_man
1 Message
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Posted November 21st, 2011 13:00
I also have a pair of M4600s doing the exact same thing. The latest shutdown occurred while the user was off of his docking station he did however have a USB mouse plugged into his system. I'm totally baffled as to what could be causing these random power reboots that seem to be occurring. Any additional information you come across would be appreciated.