Epson Equity Ie Бюллетень поддержки продуктов - Страница 2

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Subject:

Equity le - Early ROM BIOS Problem with Miniscribe 8425F

Date:

10/10/90

Page(s): 1 of 1

A problem has been reported in the Equity le when using ROM BIOS versions earlier

than release 1.76. This version has been used in production units since September

1989. The Miniscribe 8425F hard disk drive may generate a "1701" error message

when a cold boot (power switch OFF and ON) after a warm boot (software reset or

pushing the reset switch) is executed.

When the warm boot is executed, BIOS writes the status of the warm boot to the

ROM BIOS scratch register. When a cold boot is executed after a warm boot, BIOS

should erase the status in the scratch register, however, the early BIOS does not

erase the status. The BIOS reads it as a warm boot and executes the POD, skipping

the video check and the RAM check and checking the hard disk directory. This

happens too fast for the Miniscribe 8425F hard disk drive to get ready for the BIOS

check, so it shows the "1701 error message. In the case of the warm boot only, the

hard disk is already ready, so no error message is generated.

lf this problem is encountered, run the ROMBIOS program and check the ROM BIOS

version to determine if the system needs the current version of BIOS release 1.76.

Please refer to ECN No. EQIE-005, dated 9/15/89, which described the EQUlTY le

ROM BIOS release 1.76 (CMTR-A06, -B06).

Product Support Bulletin

PSB No: S-0124

Originator: REM