T60 Fans

[CoolRunnings]

I have several T60 machines that need new fans. I read somewhere on here that there were two models of fans for the T60 with discrete graphics. Each of mine has an X1400 GPU. One has a super rattly fan. The other appears to work but the machine gets too hot, locks up, and stops working unless I keep a notebook cooler under it. Anyone know if there's a specific FRU or aftermarket part that is superior for cooling these T60s? I have the 14" non-widescreen model with the X1400 chip on each of my 3 T60s. Any suggestions here would be appreciated!

[dr_st]

To me it just sounds like both of your fans have problems.

There were two Lenovo fan FRUs for T60 with discrete graphics:

41V9932 - Originally released for Core Duo models
41W6407 - Originally released for Core 2 Duo models

Both fans are completely interchangeable and I've seen the first used on C2D models, as well as vice versa.

The differences between them are emphasized in this picture:
http://img823.imageshack.us/img823/4723 ... 1w6407.png

It is suggested (and informal experiments someone support this theory), that 41W6407 is better for CPU cooling, while 41V9932 is better for GPU cooling - the reason is in the heatpipes. The CPU heatpipe on the 41W6407 reaches both vents, so gets cooled better, however it comes at the expense of the GPU heatpipe which no longer enjoys direct exposure to the vent as it does in the 41V9932.

However, both fans when operating well should be more than adequate for a T60 with X1400. I used to have the 41V9932 on my T60 w/ X1400, which died and was replaced with a 41W6407. It seems to me that the CPU temps are a bit lower now, and the GPU temps are a bit higher, but the difference is maybe ~3C each way. I have never had any problems with the machine locking up due to heat, with either fan.

With that said, I have the 15" T60, so the larger chassis may be somewhat better ventilated. Quite a few people suggested various modifications to the heatsink (from applying better thermal grease, to using custom-made copper shims for the CPU/GPU cooling pads). You can find a lot of talk about it in the forums.

[Peak2Peak]

...Also check out the following for info on T60 fans & HSF etc:

Improving T60p heatsink performance
More questions about T60/p heatsinks...
How thick is the gap between GPU & heatsink?
T60 Replacing Fan - Thermal Grease (Pic warning)
ThinkPad T60 Fan Repair

[CoolRunnings]

Thanks guys! You rock!