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150W Ac Adapter and E1705 Beeping

post #1 of 12
1/8/08 at 2:13pm
Thread Starter 
Hi,

I just got a spare E1705 and bought a 150W Ac brick to install a gtx 7950.

When the battery is charging and the system is off,there is a continuous beeping on the system.

As soon as I disconnect the adapter the beeping is gone.

Any ideas?

Thanks
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post #2 of 12
1/9/08 at 3:10pm
Thread Starter 
The beeping occurs only when the computer is turned off and the battery is being charged.

Thanks.
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post #3 of 12
1/11/08 at 11:51pm
Does the computer recognize the 150W adapter in the BIOS? It might be that the computer can't read what kind of adapter is plugged in, either due to a bad connection or a bad power supply.
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post #4 of 12
1/12/08 at 10:54am
I don't think it matters that it's a 150W adapter...my E1705 with the standard 90W adapter makes a very faint beeping/chirping sound when charging. You can barely hear it unless you are either real close to the computer or it's a very quiet room. As soon as the battery is charged, it stops. I'm hoping it's normal too.....
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post #5 of 12
1/12/08 at 8:48pm
Don't know if this helps, but I've had both a generic and a genuine Dell 150 watt adapter and never heard this beeping sound. I'll experiment more and see if I can make it do the same as yours is.
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post #6 of 12
1/12/08 at 9:49pm
Thread Starter 
Thanks guys,

I do confirm I get the beeping only when the battery is being charged.After that everything is fine.
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post #7 of 12
1/12/08 at 10:35pm
I have a 150 watt it does not beep
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post #8 of 12
1/13/08 at 8:07am
Do you mean the high frequency hiss sound? It's more of a soft cricket chirp than a "beep", and yeah, that's normal - it's just the Dell's switching power supply being weird. I think how bad it is depends on what revision of motherboard you have, and what specific power supply chips and more importantly, how good your ears are.
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post #9 of 12
1/13/08 at 1:49pm
Sorry, can't get mine to make any sort of noise.
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post #10 of 12
1/13/08 at 9:55pm
This is Nonya from Dell

I do believe it's normal

Peace out
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post #11 of 12
1/13/08 at 10:44pm
Man that would be annoying. I sure am glad mine never did that and if it did I didnt notice it haha.
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post #12 of 12
1/18/08 at 9:10pm
My 1705 with a 90watt brick does the beeping too!
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