This article provides information on AC Adapter Error Messages at POST.
When powering on a Dell portable computer, you may receive an error message similar to:
The AC adapter type cannot be determined. This will prevent optimal system performance.
Strike F3 key ( before F1 or F2 key) if you don't want to see power warning messages again.
The system will continue to power on after pressing the key, but the error message is repeated every time the system is turned on.
Also, the system may exhibit symptoms such as sluggish performance or the battery does not charge.
The error message can be caused by any of the following:
Check the following items to isolate the cause of the error.
Ensure a compatible AC adapter is being used.
Dell portable systems have different power requirements based on the processor type, system features, and configurable options.
Use the list below (Table 1) to determine the minimum AC power required to effectively run the system and charge the battery.
|Wattage||Supported System Models|
Inspiron 1420, 1501, 1520, 1521, 6000, 8600, 8600c, 300m, 500m, 510m, 600m, 630m, 6400, E1505, 640m, E1405, 700m, 710m, XPS M1210, XPS M1330, and XPS M140
Latitude 131L, D400, D410, D420, D430, D500, D505, D510, D520, D531, D600, D610, D620, D630,D631, X300, Vostro 1000, Vostro 1400 and Vostro 1500
These systems can also use the PA-10 90W AC adapter.
Inspiron 1150, 1720, 1721, 5100, 8200, 8500, 9200, 9300, 9400, and E1705
Latitude 100L, D800, D810, D820, and D830
Precision M20, M4300, M60, M65, M70 and Vostro 1700
Inspiron 5150, 5160, XPS Gen2, M170, M1710 and Precision M90
Inspiron XPS, Inspiron 9100, and XPS M2010
* Systems that are compatible with the 65W PA-12 AC adapter must use the PA-10 90W AC adapter when connected to a Dell D/Port or D/Dock docking solution.
Table 1: AC Adapter Compatibility
Check the AC adapter and system power port for damage.
The AC adapter (Figure 1) has several failure points, including the cable, insulation, and connector:
Figure 1: AC adapter and cables
|Numbers reference image above:|
|AC Adapter Brick|
Figure 2: Bent ID pin (left) and Missing ID Pin (right).
The AC adapter is not recognized in BIOS (System Setup).
If the AC adapter is not recognized in the BIOS, the battery charging circuit is DISABLED by design. The system doesn’t know
if there is sufficient power available to run the system and charge the battery. In this case verify that the system has the latest BIOS available.
Watch the video on Steps to Update BIOS on Your Computer
For information on BIOS refer to Dell Knowledge Base article on What the BIOS is and How to Access it on a Dell Computer.
Article ID: SLN148385
Last Date Modified: 02/20/2015 01:21 PM