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IBM 9595 Motherboard

g4ugm said:
Doesn't the BT646 have support for > 1GB? I have one on my PC Server...
Click to expand...

Yes, it does, for BusLogic formatted devices. But it is a thing that a format from a Corvette might not make an Adaptec controller happy. In the case of the BT-646,

http://ps-2.kev009.com/ohlandl/SCSI/Buslogic_BT646.html#0709_ADF
1Gbyte Translation See the following section for more details
Change CHS per track to support drive capacity > 1 GB

SCSI Parity Checking - The host adapter will check SCSI Parity if 'On' Needs to be ON for PS/2 systems.
 
ardent-blue said:
Yes, it does, for BusLogic formatted devices. But it is a thing that a format from a Corvette might not make an Adaptec controller happy. In the case of the BT-646,

http://ps-2.kev009.com/ohlandl/SCSI/Buslogic_BT646.html#0709_ADF
1Gbyte Translation See the following section for more details
Change CHS per track to support drive capacity > 1 GB

SCSI Parity Checking - The host adapter will check SCSI Parity if 'On' Needs to be ON for PS/2 systems.
Click to expand...

oops i had forgotten that... the BT646 set up warns about that when you enable/disable the option...
 
ButINeededThatName said:
It sounds like your system doesn't have the original planar then (if it is in fact a 9595), as that coupled with the board's FRU means it's an 8595 planar. One more quick question; On your operator panel, does it just have a power LED and the power switch on the right side with the display on the left? Or does it have both a power, hard disk LED and power switch on the left side with the display on the right?
Click to expand...

The early 9595's had the single planar as the base system board.
 
ardent-blue said:
Pull CR-2032. Move > J16 < to other outside pin. Pull BT-646 [plenty of frugal Corvettes around]. Pop battery in. Boot w/refdisk. It might / should come up in system programs. Toggling J10 forces system to use refdisk instead of saved configuration.

My suspicion is that either you chose an incompatible format [>1GB non-DOS or whatever] or BT-646 is mega-dorked? Report on Firmware / SCSI BIOS chips, like 3.38 / 4.70
Click to expand...

Alright, moved J16 to other set of pins, pulled battery, powered on, still no POSTing. Put jumper back, battery in, still nothing. BT-646 has 3.36 on the left two chips and 4.70 on the right two.

I did both power ons without the BT-646 in.
 
Culbrelai said:
Alright, moved J16 to other set of pins, pulled battery, powered on, still no POSTing. Put jumper back, battery in, still nothing. BT-646 has 3.36 on the left two chips and 4.70 on the right two.

I did both power ons without the BT-646 in.
Click to expand...

Sorry, it fails without the BT-646?

According to

http://ohlandl.ipv7.net/SCSI/Buslogic_BT646.html

those are the latest versions of the Firmware anad SCSI BIOS...
 
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