80GB: ECS P5ST-A Ver 1.0a 11/05/97-SiS-5598-(P5ST-A)C-00
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- The New Guy
- Posts: 1451
- Joined: Fri Mar 29, 2002 10:32 pm
- Location: Pennsylvania, USA
When drives are Master/Slaved, the controller in the Master is used. Perhaps the older controller did not like the newer drive for some reason.
CPU - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), i430VX, 128MB EDO.
BIOS patched by BiosMan (Jan Steunebrink).
BIOS patched by BiosMan (Jan Steunebrink).
Dear KachiWachi,KachiWachi wrote:When drives are Master/Slaved, the controller in the Master is used. Perhaps the older controller did not like the newer drive for some reason.
Perhaps. Although, I do not think you have read all my posts.
Basically the problem is.
1)The new HDD did not like the floating middle connector.
The old drive, however, was HAPPY with either:
2) slave (new HDD) connected to the middle connector where slave IS detected correctly with No errors, a key to hit 'To Continue' booting etc.
3) Or slave not connected (middle connector floats) where slave is NOT detected/ignored. That's, master boots up and goes to work as normal and as a single master HDD- exactly the same way as if two connector IDE cable used where slave is not present!
But then, the older controller is doing things differently for the two drives' master/slave arrangements. Mysterous!
That's not quite right, I'm afraid. There's an old Conner document describing how it used to work on some early IDE drives here which tells you that for most commands the DRV bit would determine which drive responded; but that the slave drive did signal to the master in certain circumstances using the Host PDIAG and Host DASP signals. This document discusses four different ways of using these signals... no wonder there used to be compatibility issues!!KachiWachi wrote:When drives are Master/Slaved, the controller in the Master is used.
Tested patched BIOSes. Untested patched BIOSes.
Emails *will* be ignored unless the subject line starts "Wim's BIOS forum"
Emails *will* be ignored unless the subject line starts "Wim's BIOS forum"
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- The New Guy
- Posts: 1451
- Joined: Fri Mar 29, 2002 10:32 pm
- Location: Pennsylvania, USA
NickS -
That's kinda what I was refering to, since he mentioned that the new drive didn't like being in the slave position on the cable.
Maybe the older drive has some sort of termination problem, so that when the new drive was placed in the chain, things didn't work right.
No matter...just as long as everything works now.
That's kinda what I was refering to, since he mentioned that the new drive didn't like being in the slave position on the cable.
Maybe the older drive has some sort of termination problem, so that when the new drive was placed in the chain, things didn't work right.
No matter...just as long as everything works now.
CPU - DFI 586IPVG, K6-2/+ 450 (Cyrix MII 433), i430VX, 128MB EDO.
BIOS patched by BiosMan (Jan Steunebrink).
BIOS patched by BiosMan (Jan Steunebrink).
Aah. This is what I said:KachiWachi wrote:NickS -
That's kinda what I was refering to, since he mentioned that the new drive didn't like being in the slave position on the cable.
Maybe the older drive has some sort of termination problem, so that when the new drive was placed in the chain, things didn't work right.
No matter...just as long as everything works now.
1)The new HDD 'MASTER' did not like the floating middle connector.
That is, when I disconnect the slave (old drive) from the middle connector.
2) The old 'MASTER' drive, however, was/is HAPPY with new HDD slave connected to the middle connector where this slave IS detected correctly with No errors, a key to hit 'To Continue' booting etc.
3) Also, the old 'MASTER' drive was/is HAPPY with new slave HDD NOT connected (i.e middle connector floats) where slave is NOT detected/ignored. That's, The old master boots up and goes to work as normal and as a single master HDD- exactly the same way as if two connector IDE cable used where slave is not present!
You, see I NEVER 'mentioned that the new drive didn't like being in the slave position on the cable.' If anything, the OPPOSITE!