Texas Microsystems, Inc. 2003 - Page 15

35. The base memory size and clock speed are written
to the screen as £ollows:
Base memory size is ____ K, Clock speed is xxxx MHz.
36. Expansion memory
greater than zero,
£ollows:
size is determined, and
is written to the screen
Expansion memory size is K
i£
as
37. Base memory is tested. 1£ an error occurs, the
£ollowing message is displayed:
Memory Test Failure
Address = xxxx, Data = yyyy
Continue? (YIN)
Where: x = address
y = £ailing bit
N2~~
1£ Y is entered to continue the BIOS
will try to down-size the memory and
continue the power-up sequence. 1£ an
error exists, it is recommended that the
user recti£y the problem, since un-
reliable operation may occur otherwise.
38. Expansion memory is tested. 1£ an error occurs,
the £ollowing message is displayed:
Address = _____ , Should Be =
H, Is ____ H
39~ Hard disk is initialized.
40. Expansion card BIOS ROMs are initialized.
41. Keyboard and timer interrupts are enabled.
42. BIOS ROM checksums are calculated. 1£ an error
occurs, the £ollowing message is displayed:
ROM Checksum error.
43. BIOS Report Sequence. In steps 44 through 48, the
computer displays a message £or each error that
occurred during power-up:
Preliminary AT Users Manual
12
11/26/86