HP t628 Troubleshooting Manual page 69

6. To clear the Setup or Power-On passwords if set, and clear any other settings, power down the computer
and remove the AC power cord and the computer hood.
7. Locate the (blue/green) two pin password jumper on header E49 (labeled PSWD) and remove it.
8. Remove AC power, wait ten seconds until the unit AC power has drained out, then press the clear CMOS
button. (This is usually a yellow push button, labeled CMOS).
9. Replace the hood and AC power cord and turn the computer on. The passwords are now cleared and all
other user-configurable, non-volatile memory settings are reset to their factory default values.
10. Re-enter the F10 setup utility.
11. Select File > Default Setup > Restore Factory Settings as Default. This will set the default settings
back to the factory defaults.
12. Select File > Apply Defaults and Exit.
13. Shut down the computer, remove AC power cord, and then place the (blue/green) jumper back on header
E49. Replace the computer hood and power cord.
Model Description
System Boot ROM
(BIOS)
System memory
(RAM)
RTC (CMOS) RAM
Keyboard/mouse
t628
(ROM)
Keyboard/mouse
(RAM)
LOM EEPROM
TPM
The information contained herein is subject to change without notice.
The only warranties for HP products and services are set forth in the express warranty statements
accompanying such products and services. Nothing herein should be construed as constituting an additional
warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
If you require additional information or need assistance please contact James Smalls at 281-514-5723.
Location/Size Power
SPI ROM (64 Mbit)
socketed,
removable.
SODIMM socket. Main power
Removable (4GB/
8GB)
RTC RAM is 272– Main/battery
byte RAM Memory
embedded in AMD
APU's Fusion
Controller Hub
(FCH).
2k bytes embedded Main
in the super I/O
controller (SIO12)
256 bytes Main
embedded in the
super I/O controller
(SIO12)
256 bytes Aux
embedded in LAN
Chip
6 kBytes embedded Main
in TPM Chip. It's
ROM for TCG
Firmware
Loss of data Comments
If main power is Only S0/S3/S5/G3
removed ACPI states are
supported
If battery power is
removed
If main power is
removed
One Time
programmable
memory (OTP)
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