Power Adapter Noise

X60/X61 series specific matters only.
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aMadUrchin
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Power Adapter Noise

#1 Post by aMadUrchin » Fri Jul 13, 2007 2:03 pm

My power adapter for the X61s makes buzzing noise, is that normal?

It also gets really hot
T20: PIII 650MHz (256KB) 384MB RAM 30GB 13.3 XGA
X61s: C2D L7500 1.6Ghz, 4GB RAM, 100GB 7200RPM, 12.1 XGA UltraLight
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mgags7
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#2 Post by mgags7 » Fri Jul 13, 2007 2:40 pm

mine too. I'm gonna call lenovo and complain about both that and my hard drive making excess noise.
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dickeywang
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#3 Post by dickeywang » Fri Jul 13, 2007 5:21 pm

Same problem with my wife's X61. It almost sounds like the power adapter is singing by itself. I put it 4 feets away and it is still louder than the hard drive and the fan, especially when the cpu usage is high or the DVD-RW on the X6 ultra-bay is spinning up.
Have to call Lenovo.
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aphex
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#4 Post by aphex » Fri Jul 13, 2007 5:40 pm

strange, the power adapter for my x60 tablet is silent.. it gets hot, but not as hot as my old T41 adapter.
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ryengineer
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#5 Post by ryengineer » Fri Jul 13, 2007 9:51 pm

dickeywang wrote:Same problem with my wife's X61. It almost sounds like the power adapter is singing by itself.
Can't help myself chuckling after reading your post.

Sure, you should get in touch with lenovo, they'll send you replacement.
"I've come a long, long way," she said, "and I will go as far,
With the man who takes me from my horse, and leads me to a bar."
The man who took her off her steed, and stood her to a beer,
Were a bleary-eyed Surveyor and a DRUNKEN ENGINEER.
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sugo
ThinkPadder
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#6 Post by sugo » Fri Jul 13, 2007 10:32 pm

It would be helpful for everyone to share the FRU number of their silent and buzzing ac adapters.

I know certain FRUs are silent and some are noisy for T42.
X61
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politicorific
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Location: fort wayne, in

#7 Post by politicorific » Sat Jul 14, 2007 3:42 pm

FRU 92P1159

This is my "silent" adapter.

I should point out that I have not abused my ears too much, but I still have trouble hearing sin waves over 17,000 hertz. Each person is different. I attempted to record the slight buzz the device makes with a mic - the only way I could hear this was by putting the brick right next to my ear, but had no luck - I had the 20db mic boost on and my speaker system had too much white noise at nearly 90% volume. The fan on my system is far louder, but that is not something that bothers me all that much.
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aMadUrchin
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Location: Seattle, Washington

#8 Post by aMadUrchin » Sun Jul 15, 2007 11:31 pm

my humming adapter has FRU: 92P1155

If I compress the adapter with my hand I can change the pitch of the sound
T20: PIII 650MHz (256KB) 384MB RAM 30GB 13.3 XGA
X61s: C2D L7500 1.6Ghz, 4GB RAM, 100GB 7200RPM, 12.1 XGA UltraLight
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sugo
ThinkPadder
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#9 Post by sugo » Mon Jul 16, 2007 12:05 am

Time to call Lenovo and ask for FRU 92P1159 as an exchange :)
X61
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