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The AC power adapter wattage and type cannot be determined.
My computer is now coming up with the error The AC power adapter wattage and type cannot be determined. This is my second power adapter, and now my computer is out of warranty.
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Inappropriate?There are two reasons for this;
- The data wire from the PSU to the laptop has broken, this is connected to the centre pin on my XPS M1730 - the wire is very weak and easily broken - there won't be any visible sign of damage from the outside. Basic advice, don't bend or pull on the cable whatsoever.
- The EPROM (memory) chip in the PSU is dead, this tiny three legged component tells the laptop what kind of PSU it is. This is similar to the above, but you can only check one or the other by opening the PSU.
Taking apart the PSU is something you should only do if you're qualified and aware of the risks to you, the laptop and the PSU.
If the motherboard needs replacing the message "AC adapter not present" will be in the BIOS battery info page. -
Inappropriate?manicminer is correct...to add to that, you probably cannot charge your battery even though it will run the computer. If you have another power adapter available to at least charge your battery that will suffice until a replacement adapter arrives.
