This is the Optiplex forum, isn't it?

So what is the resolution?

We have same problem sometimes on both GX520 SFF and GX620 USFF

systems. Batteries are definitely not low in Voltage. The BIOS information is correct including date/time.

Dell diagnostics utility does not show any problem but the message keeps on returning sometimes.

Should ask DELL to change the main board?

rgds,

Fred

FYI:

Have changed the battery in the Optiplex GX620 system with a new Fujitsu CR2032

we had on the shelf and the message disappeared.

Fujitsu battery voltage at start of using: 3.200V

Replaced Panasonic battery voltage after taking out from PC: 3.099V .

Would expect this battery can still be used.

Guess it is really a main board problem cq a voltage comparator design mistake?