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- Some weeks are I released a text in Swedish in fidonet how to build in a
- 3 1/2" IDE Harddisk in your A1200 INTERNALLY.. I decided to translate this
- into English and release it as a file!
-
- ****************************************************
- * HOW TO INSTALL A 3 1/2" IDE HARDDISK IN AN A1200 *
- * BY CHUCKY OF X-TRADE *SOME* TIPS BY DIRTYBUSH/DC *
- *I TAKE NO RESPONSABILITY OF ANYTHING WHEN YOU DOES*
- * THIS INSTALLATION.. *
- * *
- * IF YOU AREN'T USED TO *SIMPLE* ELECTRONICS AS *
- * THIS YOU SHOULD LET SOMEONE ELSE DO THIS FOR YOU *
- ****************************************************
-
-
-
- In this text theres NO need to BEND any metals as described in some
- german computer magazines etc..
-
- YOU NEED:
-
- 1 Screwdriver
- 1 small cup to keep the screws
- 1 3 1/2" IDE SLIMLINE Harddisk
- 1 40 pin 3 1/2" IDE contact with cable
- 1 44 pin 2 1/2" IDE contact with cable
- 1 Power contact for the HD
- some cables
- some paper
-
- ok here you go:
-
- 1. open your Amiga..
- 2. Disconnect the cables connected to the diskdrive power and the LEDs
- 3. To make room for the HD you must CUT the contacts from those cables and
- solder them DIRECTLY on the pins in your computer. be EXTREMELEY careful
- when doing this so the cables comes on the RIGHT pin!!!!
- 4. To get power to your HD you take the power from the discdrive power.
- connect the cables as following to your HD-Power contact:
- (You can see a little "1" stated just by the side of the connector on the
- Amiga 1200 PCB that's where pin 1 is!)
-
- Diskdrive power connector in the computer:
-
- ---- <- A protection in your 1200 so you cant turn the contact WRONG
- 1234 1=+5V 2 och 3 = GND 4=+12V
-
-
- The HD Contact:
- ______
- | |
- | 1234 | 1 = +12V 2 och 3 = GND 4 = +5V
- \____/
-
-
-
- NOTE:
- Isolate the contacts with TAPE or anything else.. just to make sure
- you doesnt frie your Amiga.
-
- 5. Remove that lille metallic shield for the space to the clock! If you want
- a clock in your 1200 buy a memorycard with a clock in it instead
- You need to do this to make room for the HD in the computer.
- 6. Now you have to make a IDE cable. as you notice the IDE controller in
- the Amiga got 44 pins but the HD got only 40 pins.. this is as the 2 1/2"
- drive have it's power connected in the IDE cable aswell.. (5V). The thing
- you have to do is a cable that only contains the 40 first pins connected.
- the last 4 can be skipped.
- There ARE adapters to buy so you dont have to make a OWN 2 1/2" -> 3 1/2"
- cable, but if you can't get hold of an adapter like this then you must make
- one. Its quite simple.. just get your 2 1/2" contact WITH cable and solder
- the FIRST 40 pins to your 3 1/2" contact with cable..
- The pins are counted as following (In the contact):
-
- 1 3 5 7 9 11 13 15 17 19 Etc...
- 2 4 6 8 10 12 14 16 18 20 Etc...
-
- In the cable it's ofcauze counted as: 1 2 3 4 5 6 7 8 9 10 11 12 etc etc.
- (With a start on the colored cable)
-
- The "44" pin is located just next to the RF-Modulator in your Amiga...
-
- It's NO DANGER to connect the cable UP-SIDE-DOWN in your HD as long as
- the pins 41-44 in your 1200 is ***NOT*** connected.
- (As those pins are containing +5V power etc!)
- (read below for specifications)
-
- 7. now place your HD next to the diskdrive UP-SIDE-DOWN.
- connect the power and the IDE cable.
- and isolate the HD PCB with a piece of paper just to make sure nothing
- will happen.
- 8. Check all your solderings SEVERAL times! especially to the POWER!!!
- 9. Turn ON your computer and now you HD should spin up. the HD led will flash
- a little when the HD got the right speed and then boot up as usual.
- If your HD is silent you have connected the POWER wrong OR the IDE cable
- is up-side-down! test with the IDE cable disconnected or turn it around!)
- 10. Load a HD prep program (I have supplied HDToolBox) and prep your drive.
- (there are other prep programs for A1200 HDs like the GVP ExpertPrep etc)
- 11. put in all screws in your Amiga.
- 12. ENJOY your HD! You have room for a 2 1/2" HD in the Amiga aswell if you
- want to have one aswell (then you have to set your 3 1/2" drive in
- SLAVE mode, read more about that in your HD papers! It's some jumpers to
- be set!)
-
- I advice you to get a little FAN in your computer as a 3 1/2" harddrive gets
- a little bit warmer then a 2 1/2" HD. Or if you have much equipment mounted
- to your Amiga you should get another powersupply.
- Especially if you will have your computer turned on for a long time like
- running a BBS etc.
-
- I have done this and are running a 127MB Quantum 3 1/2" ELS harddrive in my
- A1200 and it does 1.2MB/sec with fastmem. (That's actually FASTER then some
- harddrives supplied with the Amiga 4000/040)
-
- NOTICE:
- Some HDs wont work on A1200.. (NOT usual but..) like a Conner 40MB harddrive
- i got at home! it just says NOT A DOS DISK when i try to format it.
-
- To contact me:
-
- BBS: GangBang +46 (0)554-12133 A3000 25MHz 68040, /X 3.6, 1GIG HD, 16.8 DS
- Hardware, Graffiti, Modules, X-rated, Elite ETC
- SYSOP: Chucky COSYSOPS: Skalman, Core, Jetfire
-
- Snail: John Hertell
- Häckgatan 3
- 665 32 Kil
- Sweden
-
- Fidonet: 2:203/603.53@John Hertell
- Internet: N/A yet
-
- --------------------------------------------------------------------
- I just got a file on how to install a 3 1/2" drive without cutting
- any cables but this was done trough making the diskdrive external..
- if you want to do that use that idea instead.. but mine looks better
- and the 3 1/2" doesnt cost so much! (i bought my 127MB drive for 3000SEK
- lower price then a 2 1/2" drive) so you earn that money and if your
- computer DO break down it wont cost so much to fix it anyway.
-
- But in that file i saw the specifications of the IDE connector so i
- will enclose it here:
-
-
- The pinouts are as follows: (_NAME means signal active low)
-
- Name 2.5" 3.5" Desc
- _RESET | 1 | 1 | Drive reset
- GROUND | 2 | 2 |
- DD7 | 3 | 3 | Drive data bus bit 7
- DD8 | 4 | 4 | Drive data bus bit 8
- DD6 | 5 | 5 | Drive data bus bit 6
- DD9 | 6 | 6 | Drive data bus bit 9
- DD5 | 7 | 7 | Drive data bus bit 5
- DD10 | 8 | 8 | Drive data bus bit 10
- DD4 | 9 | 9 | Drive data bus bit 4
- DD11 | 10 | 10 | Drive data bus bit 11
- DD3 | 11 | 11 | Drive data bus bit 3
- DD12 | 12 | 12 | Drive data bus bit 12
- DD2 | 13 | 13 | Drive data bus bit 2
- DD13 | 14 | 14 | Drive data bus bit 13
- DD1 | 15 | 15 | Drive data bus bit 1
- DD14 | 16 | 16 | Drive data bus bit 14
- DD0 | 17 | 17 | Drive data bus bit 0
- DD15 | 18 | 18 | Drive data bus bit 15
- GROUND | 19 | 19 |
- key | 20 | 20 | Key for interface connector
- DMARQ | 21 | 21 | DMA request (not supported yet)
- GROUND | 22 | 22 |
- _DIOW | 23 | 23 | Drive I/O write
- GROUND | 24 | 24 |
- _DIOR | 25 | 25 | Drive I/O read
- GROUND | 26 | 26 |
- IORDY | 27 | 27 | I/O channel ready
- SPSYNC | 28 | 28 | Spindle sync (not supported yet)
- _DMACK | 29 | 29 | DMA acknowledge (not supported yet)
- GROUND | 30 | 30 |
- INTRQ | 31 | 31 | Drive interrupt
- _IOCS16 | 32 | 32 | Drive 16 bit I/O
- DA1 | 33 | 33 | Drive address bus bit 1
- _PDIAG | 34 | 34 | Passed diagnostics
- DA0 | 35 | 35 | Drive address bus bit 0
- DA2 | 36 | 36 | Drive address bus bit 2
- _CS1FX | 37 | 37 | Chip select 0
- _CS3FX | 38 | 38 | Chip select 1
- _DASP | 39 | 39 | Drive active/slave present
- GROUND | 40 | 40 |
- +5v | 41 | -- | +5v supply
- +5v | 42 | -- | +5v supply
- GROUND | 43 | -- |
- RESERVED| 44 | -- | Reserved for future definition
-
-