Dell Vostro 15 3510 Service Manual - Page 110

M-BIST, Real Time Clock—RTC reset, How to run M-BIST

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3. Turn off the wireless router. 4. Wait for 30 seconds. 5. Turn on the wireless router. 6. Turn on the modem. 7. Turn on your computer. M-BIST M-BIST(Built In Self-Test) diagnostics tool, featuring improved accuracy in system board failures. NOTE: M-BIST can be manually initiated before POST(Power On Self Test). How to run M-BIST NOTE: M-BIST must be initiated on the system from a power-off state that is either connected to AC power or with battery only. 1. Press and hold both the M key on the keyboard and the power button to initiate M-BIST. 2. With both the M key and the power button that is held down, the battery indicator LED may exhibit two states: a. OFF: No fault detected with the system board b. AMBER: Indicates a problem with the system board Real Time Clock-RTC reset The Real Time Clock (RTC) reset function allows you or the service technician to recover the recently launched model Dell Latitude and Precision systems from No POST/No Boot/No Power situations. You can initiate the RTC reset on the system from a power-off state only if it is connected to AC power. Press and hold the power button for 25 seconds. The system RTC reset occurs after you release the power button. NOTE: If AC power is disconnected from the system during the process or the power button is held longer than 40 seconds, the RTC reset process gets aborted. The RTC reset will reset the BIOS to Defaults, un-provision Intel vPro and reset the system date and time. The following items are unaffected by the RTC reset: ● Service Tag ● Asset Tag ● Ownership Tag ● Admin Password ● System Password ● HDD Password ● Key Databases ● System Logs NOTE: The IT administrator's vPro account and password on the system will be un-provisioned. The system needs to go through the setup and configuration process again to reconnect it to the vPro server. The below items may or may not reset based on your custom BIOS setting selections: ● Boot List ● Enable Legacy Option ROMs ● Secure Boot Enable ● Allow BIOS Downgrade 110 Troubleshooting

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3.
Turn off the wireless router.
4.
Wait for 30 seconds.
5.
Turn on the wireless router.
6.
Turn on the modem.
7.
Turn on your computer.
M-BIST
M-BIST(Built In Self-Test) diagnostics tool, featuring improved accuracy in system board failures.
NOTE:
M-BIST can be manually initiated before POST(Power On Self Test).
How to run M-BIST
NOTE:
M-BIST must be initiated on the system from a power-off state that is either connected to AC power or with
battery only.
1.
Press and hold both the
M
key on the keyboard and the
power button
to initiate M-BIST.
2.
With both the
M
key and the
power button
that is held down, the battery indicator LED may exhibit two states:
a.
OFF: No fault detected with the system board
b.
AMBER: Indicates a problem with the system board
Real Time Clock—RTC reset
The Real Time Clock (RTC) reset function allows you or the service technician to recover the recently launched model Dell
Latitude and Precision systems from
No POST/No Boot/No Power
situations. You can initiate the RTC reset on the system
from a power-off state only if it is connected to AC power. Press and hold the power button for 25 seconds. The system RTC
reset occurs after you release the power button.
NOTE:
If AC power is disconnected from the system during the process or the power button is held longer than 40
seconds, the RTC reset process gets aborted.
The RTC reset will reset the BIOS to Defaults, un-provision Intel vPro and reset the system date and time. The following items
are unaffected by the RTC reset:
●
Service Tag
●
Asset Tag
●
Ownership Tag
●
Admin Password
●
System Password
●
HDD Password
●
Key Databases
●
System Logs
NOTE:
The IT administrator's vPro account and password on the system will be un-provisioned. The system needs to go
through the setup and configuration process again to reconnect it to the vPro server.
The below items may or may not reset based on your custom BIOS setting selections:
●
Boot List
●
Enable Legacy Option ROMs
●
Secure Boot Enable
●
Allow BIOS Downgrade
110
Troubleshooting