T61 Power Issues

[Xander_25]

Good Afternoon all,

I've got a Lenovo T61 Series notebook; Type 7658-18U. Recently, when I try to power it on, the post screen displays for a few seconds, then the unit cuts off. I've removed the hard disk thinking that may be the source of the issue, however, that did not help. I am unsure as to what else can be the issue; I may try reseating the ram modules later on, does anyone have any ideas as to what could be causing this problem? Any help would appreciated. Thanks.

[TuuS · Accepted solution]

Make sure you have a good ac power adapter, and removing all drives and accessories is a good thing to try, but if the problem persists, you may have a bad system board.

As for the ram, I'd definitely try it, but ram is usually good or bad, I haven't seen a bad sodimm cause a machine to post for a few seconds then shut off. 

Good luck

[lead_org Microsoft MVP Contributor]

take off the main battery, and power on the laptop with only the AC adapter attached, does it still exhibit the same behaviour?

If so, take out the ram and start the laptop without the ram, does it beep?

[Xander_25]

Good Day, I did try removing the battery and powering it on, and it came on... OS is corrupted though, but I already did a back up, so that's no issue. I will leave it on overnight after re-doing the OS and see if it cuts off again. I will then re-install the battery and see if it functions normally, or cuts off; if it does cut off with the battery, I assume I may need to replace it. I'll report back if any further issues. I apologize for the late response, been a busy week at our I.T. Dept. Thanks for the assistance!

[Xander_25]

Hi all,

After trying the suggestions, it worked for a bit and I was able to re-install the OS, but after a few minutes, the same issue arose again: it began cutting off again. I am strongly convinced now that the mainboard is shot and will possibly look at purchasing a new one laptop. Thanks to you all for your assistance.