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Former Employee
Posts: 3,823
Location: Malaysia
Views: 17,093
Message 81 of 182

Re: T410 CPU fan failures?

@staylor,

I've dropped you a PM on this.

//JameZ
Navck
Ctrl-Alt-Del
Posts: 54
Location: California
Views: 16,906
Message 82 of 182

Re: T410 CPU fan failures?

My T410 with 45M2722 is still going strong. However one year ago it did have a fan error but power cycling the machine again fixed the problem. (But seeing how far this topic has gone, I'm feeling less hesistant to get the unit replaced.)

 

For the guys with 45M2724s: Do you feel that the noise fan noise is any different(Less loud, louder) and have your typical operating temperatures have changed after the replacement? Seems the fan unit (Specifically the blade profile) and heatpipe layout got changed in the 45M2724.

 

Also just a random jab/guess here but could it be that the fan's motor comes to rest in a position where during startup the motor does not have enough torque to spin it up? (Like the poles of the motor just resting in a position where it'd decrease startup torque to nil. Just a theory, it seems very rare/almost impossible for that to happen but the "duster gas on the fan solves it" gives me suspicions.)

Kicker774
Token Ring
Posts: 261
Location: Columbus, OH
Views: 16,880
Message 83 of 182

Re: T410 CPU fan failures?

We just had 3 units in a row fail on us yesterday.

Made for a busy morning when you add 2 seperate T410 units with the keyboard issue to get to as well.

 

Has anyone with Lenovo engineering offered a reason for these fan failures?

 

tofu
Fanfold Paper
Posts: 4
Location: Vancouver BC
Views: 16,671
Message 84 of 182

Re: T410 CPU fan failures?

I have the same problem. Just wonder how much does it cost? Warranty was just expired, will they still repair it for free since it is a common problem.
tofu
Fanfold Paper
Posts: 4
Location: Vancouver BC
Views: 16,657
Message 85 of 182

Re: T410 CPU fan failures?

T410 - fan error
2516-cto
*-10/04
I only have these information on hand, since I cannot turn on the machine.

 

Moderator edit by bananaman: Masked serial number to prevent misuse.

Kicker774
Token Ring
Posts: 261
Location: Columbus, OH
Views: 16,648
Message 86 of 182

Re: T410 CPU fan failures?

After almost a year of replacing fans we actually found that a bios update released in August resolves the fan failure issues with the older frus.

I beleive it's ver 1.38 or 1.39
We have tested it 4 - 5 times now and it seems to do the trick.

I half blame myself for this for not being current on updates.
But this info was readily available to the lenovo staff as well and failed to update us to the solution.

In speaking with a frontline support rep lenovo the other day it's still not a "known issue" to them. (Even though a knowledge base artle was published on this sometime mid june I believe.
Kicker774
Token Ring
Posts: 261
Location: Columbus, OH
Views: 16,644
Message 87 of 182

Re: T410 CPU fan failures?

Here it is:

 

Version 1.39
BIOS: 1.39 / ECP: 1.17/1.17

  • (Fix) Improvement of thermal control.

Version 1.39
BIOS: 1.39 / ECP: 1.16/1.16

  • (Fix) Fixed an issue where rotation error of FAN might occur.

http://support.lenovo.com/en_US/downloads/detail.page?LegacyDocID=MIGR-74268

 

 

marodrig21
What's DOS?
Posts: 2
Location: work
Views: 16,596
Message 88 of 182

Re: T410 CPU fan failures?

i had this same error and same problem i youtube it and here is a link http://www.youtube.com/watch?v=Rc2rGryt2Fg&feature=fvsr
i was able to get to the fan and blow it out i also found a peice of tape in the fan area
vpbranduk
What's DOS?
Posts: 1
Location: Manchester - UK
Views: 16,539
Message 89 of 182

Re: T410 CPU fan failures?

Coming to this thread for the obvious reason - googling to find help because my T410 is sulking and saying "Fan Error". Summing up, it appears be

a) a common but not universal fault

b) which Lenovo have initially fixed by issuing a new FRU

c) but also fixable on older FRUs by getting the right BIOS update in.

 

Great - a BIOS update will fix it for me.   Now how does one start the machine up in the first place so that you can load the new BIOS update . . . . . . ..    (Yes, I've tapped it, blown at it etc.)    Maybe I should try the "unscrew the RAM compartment" suggestion and see if that works.

 

Question - have people found the BIOS update works well?  

 

Or shall I rip the fan out of one of our other T410's to get myself going?  Now where's the thremal grease gone . . . . .

 

Paul

Kicker774
Token Ring
Posts: 261
Location: Columbus, OH
Views: 16,537
Message 90 of 182

Re: T410 CPU fan failures?

Paul, there should be a bootable iso to burn to cd or a thumbdrive
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