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-
- FLASH BIOS Update for IBM PS/2 Model N45 Notebook Computer
-
- To Install the New Version of BIOS:
-
- Copy the file ROMIMAGE.BIN to a Diskette. After the N45 has been turned on and
- the DOS prompt is displayed, insert the diskette into the floppy disk drive.
- Use CTRL-ALT-INS to get to the Monitor prompt. The machine will re-boot and the
- following will be displayed:
-
- MFM-300 Monitor, Version X.X (X.X will be the current version)
- Memory Size: 640K + XXXXK + 64K Cache (XXXX varies with total system memory)
- ->
-
- Type NEWBIOS, press ENTER and follow the instructions displayed on the screen.
-
-
- What release 4.1E Fixes:
-
- 1) System would sometimes not save Reverse Video selection in Setup, after power
- off. This has been reported by Windows users and has been fixed.
-
- 2) Bios routines could fail to execute due to Monitor ram write access (PRIVY)
- being off. The routines which enable PRIVY now increment the semaphore
- before writing to the PRIVY ENABLE port so that interrupting routines cannot
- disable PRIVY.
-
- 3) Modified the GET_AUX_DEVICE routine so it would flush any byte from the SCP
- output buffer before reading the AUX_DEVICE byte from the SCP. This assures
- a keyboard scan can't be mistaken for the AUX_DEVICE byte
-
- 4) The Standby Timer Battery field under SETUP's (FN-F5) Power Control Window
- was displayed inconsistently. Sometimes it showed (disabled) in the border
- shade which is only for fields that cannot be changed. This field can be
- changed regardless of the state of the power button setting.
-
- 5) IRQ3 and IRQ4 bits are properly set to 1 when they are defined for the
- enabled COM1 and COM2 ports.
-
- 6) Changed "get power status" function to report Battery low. Previously the
- battery condition went from Batt High to Unknown.
-
- 7) If CRT is selected in setup, the system will now check to see if the CRT is
- attached and automatically switch to LCD if the CRT is not attached. This
- prevents the user from powering on or resuming from rest mode to a blank
- display.
-
- 8) Ring Indicate signals are now checked before entering REST mode. If Ring
- Indicate is active and "Resume on Modem Activity" is selected in setup, the
- system will not enter REST and display a "Serial Port Active" message. This
- message is also displayed if the Carrier Detect signal is active and the
- system will not enter REST or STANDBY.