Hard Disc linking
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From: nospam on 27 Jul 2005 17:33 Hi, I have just installed a second hard disc (with no links, = slave) and all works perfectly. I had to work out whether the boot disc was configured as a Master or as Drive select so I checked the documentation that came with the disc many years ago. I was surprised as to how the boot disc is configured. All works well was I didn't alter anything but I am left curious. The boot disc is a Maxtor 5T030H3 and is linked as follows; Link between Pins 1 and 6 Link between Pins 2 and 3 X = Pin O = No Pin 1 2 3 4 5 X X X O X X X X X X 6 7 8 9 10 The manual say for a master there should be a link between 1 and 6 but does not show any other links present. Now all works fine so I was curious as to what the link between 2 and 3 is for. Maybe it is just 'parked' there, this is making the assumption that pins 2 and 3 are earth pins. Does anyone know the real reason? Thanks
From: Rod Speed on 27 Jul 2005 17:54 nospam <nospam(a)nospam.demon.co.uk> wrote: > Hi, > > I have just installed a second hard disc (with no links, = slave) and > all works perfectly. > > I had to work out whether the boot disc was configured as a Master or > as Drive select so I checked the documentation that came with the > disc many years ago. > > I was surprised as to how the boot disc is configured. > > All works well was I didn't alter anything but I am left curious. > > The boot disc is a Maxtor 5T030H3 and is linked as follows; > > Link between Pins 1 and 6 > Link between Pins 2 and 3 > > X = Pin > O = No Pin > > 1 2 3 4 5 > X X X O X > X X X X X > 6 7 8 9 10 > > The manual say for a master there should be a link between 1 and 6 but > does not show any other links present. > > Now all works fine so I was curious as to what the link between 2 and > 3 is for. > Maybe it is just 'parked' there, this is making the assumption that pins 2 and > 3 are earth pins. Yep, very likely, tho the official park position is between pins 4 and 5, even tho there is no pin 4. Not as satisfactory tho because that only has one pin the jumper and so it can fall off easier. > Does anyone know the real reason?
From: Arno Wagner on 27 Jul 2005 18:41 Previously nospam <nospam(a)nospam.demon.co.uk> wrote: > Hi, > I have just installed a second hard disc (with no links, = slave) and > all works perfectly. > I had to work out whether the boot disc was configured as a Master or as > Drive select so I checked the documentation that came with the disc many > years ago. > I was surprised as to how the boot disc is configured. > All works well was I didn't alter anything but I am left curious. > The boot disc is a Maxtor 5T030H3 and is linked as follows; > Link between Pins 1 and 6 > Link between Pins 2 and 3 > X = Pin > O = No Pin > 1 2 3 4 5 > X X X O X > X X X X X > 6 7 8 9 10 > The manual say for a master there should be a link between 1 and 6 but > does not show any other links present. > Now all works fine so I was curious as to what the link between 2 and 3 > is for. > Maybe it is just 'parked' there, this is making the assumption that pins > 2 and 3 are earth pins. > Does anyone know the real reason? That looks like an incorrectly parked jumper. Either both pins are ground or both are connected to pull-up resistors. In both cases the jumper does nothing and should not have any negative impact, but still it likely is a not documented position and any kind of problem could (unlikely in this case) result. BTW, it is called "jumpered" because the bridges are "jumpers". Arno
From: Peter on 27 Jul 2005 19:56 > The manual say for a master there should be a link between 1 and 6 but > does not show any other links present. > > Now all works fine so I was curious as to what the link between 2 and 3 > is for. > > Maybe it is just 'parked' there, this is making the assumption that pins > 2 and 3 are earth pins. > > Does anyone know the real reason? Pin 1 J1 IDE Connector | J2 Power ___________ ________|_________________________ | .................... || @ * * o |/ \ | .......... ......... || @ o o o o || O O O O | |______________________||___________||_________| | | | | | | | | | | | | | | | | | | J50 Master/Slave -----' | | | | | | | `-+12V J48 Cable Select -------' | | | | | `---+12V Return J46 4092 Cyl Limitation---' | | | `----- +5V Return J44 Factory Reserved -------' | `------- +5V J42 Factory Reserved ---------' @ = Default Jumped Positions * = "Spare" Jumper Position o = Default Open Positions
From: nospam on 28 Jul 2005 11:24
Thanks everyone Why would you want/need to have a cylinder limit? Is it a hardware issue or an OS issue. Thanks again. Peter <peterfoxghost(a)yahoo.ca> writes >> The manual say for a master there should be a link between 1 and 6 but >> does not show any other links present. >> >> Now all works fine so I was curious as to what the link between 2 and 3 >> is for. >> >> Maybe it is just 'parked' there, this is making the assumption that pins >> 2 and 3 are earth pins. >> >> Does anyone know the real reason? > > Pin 1 > J1 IDE Connector | J2 Power > ___________ ________|_________________________ > | .................... || @ * * o |/ \ > | .......... ......... || @ o o o o || O O O O | > |______________________||___________||_________| > | | | | | | | | | > | | | | | | | | | > J50 Master/Slave -----' | | | | | | | `-+12V > J48 Cable Select -------' | | | | | `---+12V Return > J46 4092 Cyl Limitation---' | | | `----- +5V Return > J44 Factory Reserved -------' | `------- +5V > J42 Factory Reserved ---------' > > @ = Default Jumped Positions > * = "Spare" Jumper Position > o = Default Open Positions > > |