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I have mentioned before usability issues of my Lenovo Thinkpad T60p computer. Usability issues is one thing. Another—and potential deadly—thing happened Saturday evening at home. This is what I write to our internal support and expect them to forward.

Saturday evening I put the power plug in the laptop to recharge. I came back to the room (our home office) 10 minutes later and saw the computer not charging. I noticed a high frequent sound and traced it to the power supply, which was incredibly hot, and smelled bad. I immediately unplugged it.

I have no exact temperature for the power supply, it felt like holding on a hot cup of coffe. Also the cord itself felt softer than usual because of the hot temperature. I have marked on the cord a mark, where the weight of the power supply pressed a mark into the cord.

I am convinced that if I had not seen what happened, the power supply would have set the entire room on fire.

For some strange reason, the power supply is working again the day after.

Technical details from the power supply and PC

• Lenovo AC Adapter 90W 20V rev H
• Serial number: 11S92P1107Z1ZD2L73W8P6
• P/N 92P1108
• PA-1900-08I
• (used for my Lenovo Thinkpad T60p widescreen type “8742-CTO”, S/N “L3-A8843 07/04”, Product id “8742Y18”)

Question for Lenovo:

How can you convince me that it’s safe to use the power supply and put it back in the wood shelf in my home office?

Is this periodical error something that could potentionally happen to the other power supply I use?

Thanks in advance for taking time to answer my questions professionally and seriously.

/Jesper Rønn-Jensen

We need to get a smoke alarm in our home office. From saturday on, all electronics is turned off at home when sleeping. This includes the wireless internet connection, printer, and also the telephone which is connected to the same power plug.

To everybody with a similar power supply: Unplug the power supply when unattended!

Related info:

• Lenovo Problem: No Wireless Reconnect After Standby (Jul 25)
• New Laptop With Better Defaults (May 17)

Technorati Tags: lenovo, laptop, burning, fire, danger, hazard

This entry was posted by Jesper Rønn-Jensen on Monday, October 8th, 2007 at 12:33 (GMT-1) and is filed under Errors, Hardware. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.