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2 Posts
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3250
September 7th, 2005 00:00
C840 AC adapter issue
I am getting the message:
"Warning: 70 watt (20V, 3.5A) AC adapter detected. System will not be capable of running in full performance mode without a 90 Watt (20V, 4.5A) AC adapter."
I'm using the PA-9 adapter that says 20V 4.51A output.
No dock.
I never got the message before. Any ideas
Thanks
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AussieChris
4.2K Posts
0
September 7th, 2005 20:00
Hi,
You have a motherboard problem. Live with it, replace it, or have it repaired. The MBD is the same as an Inspiron 8200. http://www.aqstech.com/ The link may help for a repair. If you do a search, you will find your not the first with this problem.
Regards Chris
DCookies
20 Posts
0
November 16th, 2005 16:00
Based on what others have posted about the DC power wire failing between the iron core (that filters out electromagnetic interference) and the plug into the laptop, if you have a volt meter and know how to use it, I would check to be sure that you have +20v DC between Pin 3 and Pin 1 as well as Pin 3 and Pin 2.
The error message you are getting is from a check put in to see if the correct power brick is plugged into the laptop; the PA-6 and PA-9 are plug compatible BUT the PA-6 is only a 70 watt power supply not a 90 watt.
In the PA-6 connector, Pin 2 apparently isn't connected. If the wire in the PA-9 supply to Pin 2 breaks then the BIOS would think that the PA-9 is a PA-6.
The worst case would be if the break is in the laptop.
Good luck.
Dave