|
|
|
__ ____
| | | |
| |___ | |
|_____|_____ _______ _______ __________ ___________|___|
| | |__| J3 |____| J2 |____| J1 |__|ESDI hardfile||
| | Adapter/A ||
| | i-u-<i----locator ||
| | i i notch for U16 ||
| | C4 i i facing J3 ||
| | i----i ||
| | U16 ||
|__|_________________________________ P2 ____ ||
|________________| |___||
Install the new EPROM with the locator notch toward edge
connector J3.
On some ESDI adapters, U16 may be mounted horizontally. In this
case, the locator will face the left side of the card (the notch
will face component C4).
The DOWN - level modules are:
P/N 90X7399, P/N 90X8635, P/N 15F6587, P/N 15F6807 and P/N 91F7430.
Module P/N 15F6587 :caused a diagnostic formatting problem
and an intermittent hardfile delay during system operation (the
hardfile light would remains "on" for approx. 13 seconds).
also, in rare instances, a write fault could result in a
data shift problem during error recovery, which would be
detected during read operations and during diagnostics as
a "10473" error (ECC error; read error).
Module P/N 15F6807 : caused a highly intermittent problem
of undetected write faults on the last 1/3 of the last sector
written (detected during system read operations and by
diagnostics as error code 10473, ECC read errors).
Module P/N 91F7430 : experienced a highly intermittent system
"HANG" only on 115MB ESDI fixed disks.
****************************************************************
Some older versions of direct driver software, which bypass BIOS
(basic input/output system) may experience failures accessing
the Fixed Disk after the installation of this ECA. This may
occur because changing this module may alter how the Fixed Disk
subsystem "appears" to the software. Software which uses BIOS
is not affected and will function normally. DOS and OS/2 use
BIOS.
If the user software fails after this module is changed, the
original module should be re - installed, and the appropriate
software support function should be contacted for any possible
software patches or updates.
****************************************************************
After replacement of the module, FRU P/N 92F0062, advanced
diagnostics ESDI fixed disk(s) routine should be run to
insure proper hardfile operation.
Order FRU P/N 92F0062 through normal parts distribution.
Please see the LEGAL - Trademark notice.
Feel free - send a 
for any BUG on this page found - Thank you.