Two X220's one hot one cool

X200, X201, X220 (including equivalent tablet models) and X300, X301 series specific matters only.
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karotlopj
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Two X220's one hot one cool

#1 Post by karotlopj » Tue Aug 08, 2017 1:26 pm

I have two X220's, one runs hot, I can't even put my hand against the fan outlet. The other runs cool, I can't even sense any heat by the fan outlet. The cool one use an i7 processor, the other uses an i5.

Can anyone explain the difference, and is there any way to make the hot one run cooler. There does seem to be quite a lot of heat generated on the left hand side of the palm rest.

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Re: Two X220's one hot one cool

#2 Post by Thinkpad4by3 » Tue Aug 08, 2017 2:53 pm

Check the thermal paste. I use a i5 X230 and i7 X220 on a daily basis and neither run more than luke warm air out of the fan. Use TPFanControl to see if the fans are going full speed.
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Re: Two X220's one hot one cool

#3 Post by TankPad » Tue Aug 08, 2017 11:22 pm

Check the task manager and see if the hot one has something hogging the processor.
You could even try switching the hard drives too and see if the problem stays or switches to the other machine.

It could also be dirt in the fan or old, flaky thermal paste.
| 701c | X220 | T420 | X230 | T430s |

karotlopj
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Re: Two X220's one hot one cool

#4 Post by karotlopj » Wed Aug 09, 2017 2:07 am

Actually when switching on the hot one today, I get 'FAN ERROR'. I took off the keyboard sprayed some silicone lubricant on the fan and blew through the grill but it made no difference.

Do I really need to replace the fan?

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Re: Two X220's one hot one cool

#5 Post by axur-delmeria » Wed Aug 09, 2017 4:06 am

Where exactly did you spray the lubricant? It should be at the shaft or axle of the fan. Usually that requires complete disassembly of the laptop.
Daily driver: X220 4291-P79 i5-2520M

In reserve: X61 T7500, X60 T2300
In pieces: X60s CS U1300 [board only], two retired but working X61Ts
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karotlopj
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Re: Two X220's one hot one cool

#6 Post by karotlopj » Thu Aug 10, 2017 12:50 am

I sprayed it over the fan.

I tried booting up this morning and even though the fan didn't start spinning I did not get the FAN error and was able to boot.

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Re: Two X220's one hot one cool

#7 Post by RealBlackStuff » Thu Aug 10, 2017 3:47 am

Time to do your homework first!
And there's more where that came from, check the other goodies on that webpage!

karotlopj
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Re: Two X220's one hot one cool

#8 Post by karotlopj » Fri Aug 11, 2017 1:57 am

Almost all these books are written for people who use Windows or Linux. I try to avoid both, although sometimes needs must. Often the most effective way of fixing a Windows computer is to switch it off and switch it back on again. Most problems are due to software rather than hardware.

Interestingly my X220 has been booting up without the FAN ERROR msg over the last few days. The fan doesn't seem to switch on at all, but I haven't left it running for very long so it hasn't had time to heat up

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Re: Two X220's one hot one cool

#9 Post by axur-delmeria » Fri Aug 11, 2017 3:24 am

karotlopj wrote:
Fri Aug 11, 2017 1:57 am
Almost all these books are written for people who use Windows or Linux. I try to avoid both, although sometimes needs must.
So what are you running on your X220? Mac OS?
Daily driver: X220 4291-P79 i5-2520M

In reserve: X61 T7500, X60 T2300
In pieces: X60s CS U1300 [board only], two retired but working X61Ts
RIP: 760XD 9546-U9E

karotlopj
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Re: Two X220's one hot one cool

#10 Post by karotlopj » Fri Aug 11, 2017 4:32 am

Sometimes needs must.... But I prefer OS/2 and FreeBSD.

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Re: Two X220's one hot one cool

#11 Post by TankPad » Fri Aug 11, 2017 9:33 am

karotlopj wrote:
Wed Aug 09, 2017 2:07 am
Actually when switching on the hot one today, I get 'FAN ERROR'. I took off the keyboard sprayed some silicone lubricant on the fan and blew through the grill but it made no difference.

Do I really need to replace the fan?
Some silicon oils are conductive so I'd strongly advise against just spraying the general area of the fan. Does the fan appear to be turning over when you boot the computer without the keyboard?
| 701c | X220 | T420 | X230 | T430s |

karotlopj
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Re: Two X220's one hot one cool

#12 Post by karotlopj » Fri Aug 11, 2017 11:26 am

TankPad wrote:
Fri Aug 11, 2017 9:33 am
karotlopj wrote:
Wed Aug 09, 2017 2:07 am
Actually when switching on the hot one today, I get 'FAN ERROR'. I took off the keyboard sprayed some silicone lubricant on the fan and blew through the grill but it made no difference.

Do I really need to replace the fan?
Some silicon oils are conductive so I'd strongly advise against just spraying the general area of the fan. Does the fan appear to be turning over when you boot the computer without the keyboard?
I thought I would just check.... I removed the keyboard without disconnecting it and switched on. The fan did not move. I switched off and poked around the fan blades and blew through the fan and through the outlet at the side and sitched on and off a few times and noticed the fan start up for a few seconds. Then switch on and off a few times and booting a few commands from the network it appeared to start consistantly and then stop, but it ran almost silently. So maybe the silicon oil acted like a weak glue initially and prevented it from spinning up.

Anyhow it seems to be working fine for the moment, so now I have two cool X220's :)

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Re: Two X220's one hot one cool

#13 Post by TankPad » Sat Aug 12, 2017 9:35 am

Good to hear you got it back up and running.
It would be a good idea to give it a thorough cleaning now, before it happens again and risks damage to the system though. That silicone oil could actually give all the dust something to stick to.
I'd remove the fan blade and lube the shaft inside too, just to make sure that's not the cause is the binding.
| 701c | X220 | T420 | X230 | T430s |

karotlopj
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Re: Two X220's one hot one cool

#14 Post by karotlopj » Sat Aug 12, 2017 11:07 am

TankPad wrote:
Sat Aug 12, 2017 9:35 am
Good to hear you got it back up and running.
It would be a good idea to give it a thorough cleaning now, before it happens again and risks damage to the system though. That silicone oil could actually give all the dust something to stick to.
I'd remove the fan blade and lube the shaft inside too, just to make sure that's not the cause is the binding.
Thanks for the advice. How do you suggest I clean it? And how easy is it to remove the fan blade? I have too many ThinkPads in pieces which were taken apart with good intentions but somehow never managed to get re-assembled...

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Re: Two X220's one hot one cool

#15 Post by TankPad » Sat Aug 12, 2017 7:57 pm

karotlopj wrote:
Sat Aug 12, 2017 11:07 am
TankPad wrote:
Sat Aug 12, 2017 9:35 am
Good to hear you got it back up and running.
It would be a good idea to give it a thorough cleaning now, before it happens again and risks damage to the system though. That silicone oil could actually give all the dust something to stick to.
I'd remove the fan blade and lube the shaft inside too, just to make sure that's not the cause is the binding.
Thanks for the advice. How do you suggest I clean it? And how easy is it to remove the fan blade? I have too many ThinkPads in pieces which were taken apart with good intentions but somehow never managed to get re-assembled...
Well you need to get the motherboard out but I find the X220/X230 some of the nicer ThinkPads to disassemble so it's not too difficult.
Once the motherboard is out, then you can remove the fan and housing, give it a good clean and reassemble. All in, it takes me about 10-15 mins now, having worked on a lot of them but if you take your time and maybe watch a few disassembly videos first, you could have it back together in an hour.
| 701c | X220 | T420 | X230 | T430s |

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