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- Path: news.isp.net!sfsp63
- From: shotgun@slip.net
- Newsgroups: comp.sys.amiga.hardware
- Subject: Re: Put 2.04 ROM in 1.2 500, red screen problem, Help!
- Date: Fri, 12 Jan 96 14:18:52 GMT
- Organization: n/a
- Message-ID: <4d65mh$7dv@news2.isp.net>
- References: <4c01bq$d44@muss.CIS.McMaster.CA> <4c1ctj$1n@muss.CIS.McMaster.CA> <95365.124247LEEK@QUCDN.QueensU.CA>
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-
- Hi,
-
- In article <95365.124247LEEK@QUCDN.QueensU.CA>, <LEEK@QUCDN.QueensU.CA> wrote:
- :In article <4c1ctj$1n@muss.CIS.McMaster.CA>, u9408669@muss.cis.McMaster.CA
- (D.R.
- :Ward) says:
- :>
- :>have to put a jumper wire across two of the pins on the 2.04 ROM...
- :>Unfortunately, I can't remember the pins and I would have to open my
- :>machine to check.
- :
- :According to the piece of paper that comes with my 2.1 Kit, the pins 31
- :& 1 should be jumper in A500 Rev 3, 5 boards while it should be cut in
- :Rev 6 & up.
- :
- :>HR!/F.U.N u9408669@muss.cis.mcmaster.ca
-
- I never heard of cutting anything on a Rev. 6 and up. As I understand it (and
- used for many years) there is no modification needed.
-
- However you are right about the modification on the Rev. 3 and Rev. 5. There,
- pin 1 and pin 31 have to be jumpered.
-
- And in the instructions that came with 3.1, it states:
-
- For Rev. 3 and Rev. 5 boards, the ROM must have Pin 1 connected to Pin 31.
-
- For Rev. 6A and above, the ROM must not have any connection.
-
- The last part means no jumper as there was for Rev. 3 and Rev. 5.
-
- Michael
-