Verifying System Memory; Verifying System Memory In Setup; Testing Memory Using Epsa; System Error Messages - Dell OptiPlex 3050 Micro Owner's Manual

Table 25. Diagnostic error messages (continued)
Error messages
X:\ IS NOT ACCESSIBLE. THE DEVICE IS NOT
READY

Verifying system memory

Windows 10
1. Clickthe Windows button and select All Settings
2. Under System, click About.

Verifying system memory in setup

Steps
1. Turn on or restart your computer.
2. Perform one of the following actions after the Dell logo is displayed:
● With keyboard — Tap F2 until the Entering BIOS setup message appears. To enter the Boot selection menu, tap F12.
3. On the left pane, select Settings > General > System Information,
The memory information is displayed on the right pane.

Testing memory using ePSA

Steps
1. Turn on or restart your computer.
2. After the Dell logo is displayed:
a. Press F12.
b. Select ePSA diagnostics
The PreBoot System Assessment (ePSA) starts on your computer.
NOTE: If you wait too long and the operating system logo appears, continue to wait until you see the desktop. Turn off
the computer and try again.

System error messages

Table 26. System error messages
System message
Alert! Previous attempts at booting this
system have failed at checkpoint [nnnn]. For
help in resolving this problem, please note
this checkpoint and contact Dell Technical
Support
CMOS checksum error
CPU fan failure
System fan failure
Hard-disk drive failure
56 Troubleshooting your computer
Description
Insert a disk into the drive and try again.
> System .
Description
The computer failed to complete the boot routine three
consecutive times for the same error.
RTC is reset, BIOS Setup default has been loaded.
CPU fan has failed.
System fan has failed.
Possible hard disk drive failure during POST.