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What is this little extra fan for on my X61 ?
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What is this little extra fan for on my X61 ?
Hi. I have to X61 laptops and one of them has a small fan (in addition to the CPU fan assembly) just to the left of the modem. The X61 with the extra fan is a T7300. The one without the extra fan is a T8100.
Re: What is this little extra fan for on my X61 ?
X60 became notorious for palmrest heat on the right side, from the stock WLAN and WWAN cards. A second fan and ventilation are added under the X61 palmrest to try and cool that part of the laptop.
Many people flash a whitelist-removed BIOS and then install a newer, cooler, half size WLAN card.
Many people flash a whitelist-removed BIOS and then install a newer, cooler, half size WLAN card.
lenovo T420 i5 2520m 16GB QHD w/ eGPU GTX 960
lenovos T520 i7 2720qm 8GB FHD, T420s i5 3320m 8GB QHD, T430 i5 3320m 8GB FHD, T430 i5 3320m 8GB FHD w/ Optimus, S1 Yoga i7 4600u 8GB FHD
IBM X601 Tablet L7500 8GB SXGA+
Enable 2 finger scroll on old Synaptics touchpads.
lenovos T520 i7 2720qm 8GB FHD, T420s i5 3320m 8GB QHD, T430 i5 3320m 8GB FHD, T430 i5 3320m 8GB FHD w/ Optimus, S1 Yoga i7 4600u 8GB FHD
IBM X601 Tablet L7500 8GB SXGA+
Enable 2 finger scroll on old Synaptics touchpads.
Re: What is this little extra fan for on my X61 ?
While the palm rest heat thing is very famous, I wonder if that is the only reason. I also have a second fan on my T9300 board X61 in that same position and trying to unplug it (even after upgrading to Middleton's BIOS and making the WiFi card much smaller), will result in a BIOS panic. It doesn't turn on too often in my case, and I count that as a good thing.fri_night_in_ninsei wrote: ↑Mon Jan 14, 2019 6:23 pmHi. I have to X61 laptops and one of them has a small fan (in addition to the CPU fan assembly) just to the left of the modem. The X61 with the extra fan is a T7300. The one without the extra fan is a T8100.
Greetings from California (and 時々日本),
MadIceTea, Thinkpad Enthusiast
Daily Driver Thinkpads: X250 16gb 3TB FHD, X61 T9300 SXGA+
Museum Piece: PC110 20MB
Past: 701Cs German, 535/X, 760E/XL, i-series 12/14xx, piano s30, R60e, X60, X61, T60, T61, X200 P8700, x2001 AFFS i5-530, X121e
MadIceTea, Thinkpad Enthusiast
Daily Driver Thinkpads: X250 16gb 3TB FHD, X61 T9300 SXGA+
Museum Piece: PC110 20MB
Past: 701Cs German, 535/X, 760E/XL, i-series 12/14xx, piano s30, R60e, X60, X61, T60, T61, X200 P8700, x2001 AFFS i5-530, X121e
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Re: What is this little extra fan for on my X61 ?
This is awesome. Any idea where could I possibly order the 2nd fan for my X61s, as mine unfortunately came without the fan installed.
X61f, 2x X230, 2x T430
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Re: What is this little extra fan for on my X61 ?
This ONLY applies to X61/X61s with WWAN option.
Check the HMM for the Second fan, (low profile only for X61s).
Check the HMM for the Second fan, (low profile only for X61s).
Still NOT a great day for a Guinness! (the Real Black Stuff).
Ireland is on FULL lockdown until 5 March 2021!
Covid-19: Stay safe, so Mask it or Casket!
Ireland is on FULL lockdown until 5 March 2021!
Covid-19: Stay safe, so Mask it or Casket!
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Re: What is this little extra fan for on my X61 ?
Models without the 2nd fan do not have the fan header for it, so even if you buy the fan there's nowhere to plug it into.Jake.Werecat wrote: ↑Thu Jul 11, 2019 6:01 pmThis is awesome. Any idea where could I possibly order the 2nd fan for my X61s, as mine unfortunately came without the fan installed.
Daily driver: X220 4291-C91 i7-2620M
Backup: X601 Core 2 Duo T8100
Toy: X60F Core Solo U1300
On loan: X220 4291-P79 i5-2520M
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod
Backup: X601 Core 2 Duo T8100
Toy: X60F Core Solo U1300
On loan: X220 4291-P79 i5-2520M
In pieces: two retired but working X61Ts
RIP: 760XD 9546-U9E; X61 7676-A24; and a BOE-Hydis HV121P01-100 in failed SXGA+ mod

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Re: What is this little extra fan for on my X61 ?
Yes, I've just noticed it today when disassembling one of my X61. The fan connector is just not soldered thereaxur-delmeria wrote: ↑Fri Jul 12, 2019 3:42 amModels without the 2nd fan do not have the fan header for it, so even if you buy the fan there's nowhere to plug it into.Jake.Werecat wrote: ↑Thu Jul 11, 2019 6:01 pmThis is awesome. Any idea where could I possibly order the 2nd fan for my X61s, as mine unfortunately came without the fan installed.

Interesting why my X61 had SIM card and 2nd mPCIe slot, but not the fun. The WWAN antenna also wasn't in place. I was hoping to put in the antenna from X60s, but it's different and thus cannot be used.
X61f, 2x X230, 2x T430
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