Thinkpads Forum

About 3 weeks ago I had my T60p serviced under warranty as it had been overheating (98
deg.C) under heavy load and powering off. I believe the air holes were
cleaned and heatsink reseated. It had been keeping temps in the aircon'd
office own to 60-70 deg. when relatively idle. It has also ben
previously serviced for the same problem about 12 months ago.

Today I'm working from home - sat at a table, under a parasol in the
garden temp outside is showing as 27 deg.C ambient. A little wam,
but in shade with a light breeze (and very nice!). The "spec"d max
ambient for the T60p is 35 deg.C

The system is running relatively idle - averaging around 15-20% most of
the time, with obvious peeks as apps are used. CPU is in auto,
throttling back

Yet temps are in the 70-80 deg.C range.

I ran cpuburn (cpu intensive app) and within a few seconds the temp hit
95 deg.C (and a smell) before I aborted the process. This was with no
additional CPU load

What next? Should I be returning for service again & trying to persuade
them to fit a new motherboard, or new fan? I can't be sure exactly what they did last time, although I'm sure they said the heatsink had been reseated (and presumably new paste used??!)

Is there any EC change on
these T60p models? Is there any real fix? Is this just a hard design
fault with these systems? I'd assert I should be able to run 100% cpu in
ambient 35 without exceeding the cpu shutdown temp @98 deg.C -- probably
maxing around 90 tops. Is there anything that can be done?

For a 2008-93G what are typical idle/full load temps?

My son has a new-ish Dell (with a 2.5Gh core 2 duo) and it runs *so* cool.

Nigel.

The CPU and GPU of the T60p and T61p run pretty hot under load (80-90 degrees). The T61p does a little better at idle but not much different under load:

http://www.notebookreview.com/default.asp?newsID=3889

Unfortunately, it doesn't take much of a cooling system performance degradation to increase these temps from the high 80's (normal) to the high 90's (a little concerning)!

A few months ago I upgraded the CPU of my T61.

I took out the original T7700 and installed a T9500. But have had several incidients of overheating.
So I had to open the T61 again and found the heat sink was not fully attached / contacted the surface of the CPU.
I think it would be a good idea to send your T60p back and ask them to check whether the heat sink is installed properly.

Tseng wrote:A few months ago I upgraded the CPU of my T61.

I took out the original T7700 and installed a T9500.

Upgrade T7700 Merom to T9500 Penryn in a T61? How could that be possible? Don't you get any error message?

T61 manufactured after April. 2008 should be able to accept both Merom and Penryn.