GVP1230+ Accel Board Jumper settings?

gtrmn01 · 08 February 2010, 18:47

Hello again and HELP! Does anyone have a manual or know the jumper settings for a GVP1230+ accelerator board. The other labels on the unit read exactly as follows:

JAWS 2/9/93
MASTER. / /
PROD. RELEASE
REV 1.0 CS#1B26

It had a 4 MB simm on it, I just purchased 2-16MB simms from SOftware Hut (THANKS!) but it only recognizes them as 8MB. I have tried searching but all the info leads to dead links. Any help would be appreciated. Thanks in advance.
gtrmn01

solaris104 · 08 February 2010, 19:57

In google I found this:

A1230 Turbo+ (original) Jumpers:
J1 - ON - 68020 / (OFF - 68030)
J2 - RESERVED (ON)
J3 - RESERVED (OFF)
J4 - RESERVED (OFF)
J5 - (ON - No 16MB SIMMS) / OFF - 16MB SIMMS PRESENT
J6 - RESERVED (OFF)

CN4 - RESERVED (OFF)
CN5 - (ON - 4k REFRESH DRAM 16M) / OFF - 2k REFRESH DRAM 16M
CN6 - RESERVED (ON)
CN7 - RESERVED (OFF)

(.)=DEFAULT

gtrmn01 · 08 February 2010, 21:52

Solaris104... Thank you, I saw that message and I THOUGHT my board didn't have a CN4. Actually I OPENED my eyes (or getting old

) and it was up above covered by the metal plate. Now the settings make sense. THANK you so much. I have now 32mb to play with WOOOHOOO

NOW to find a software pack that works with version 1. I tried all the ones on EAB file server and other sources, but they all give me error message not compatible with my board.

bobingabout · 03 September 2013, 20:21

This is actually useful information.
I was just in the same boat, I had a 16MB SIMM recognised as an 8MB SIMM.
The information I found on google all sugests that J3 is the 16MB disable jumper, not J5, however, the numbering order of the jumpers is strange, starting from the right you have J4, J6, J5, J3, J2, J1. the default pattern listed did not match where the jumpers were on my board.
However, if you number them in order from the right, starting with J1, then the 3rd jumper is J3, and everything matched up with the defaults, so what the manuals I were finding were naming J3, was labled on the board as J5.

So I pulled J5, as your information sugests, and everything works!

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08 February 2010, 18:47	#1
gtrmn01 Registered User Join Date: Dec 2009 Location: Shelton,CT/USA Age: 68 Posts: 22	GVP1230+ Accel Board Jumper settings? Hello again and HELP! Does anyone have a manual or know the jumper settings for a GVP1230+ accelerator board. The other labels on the unit read exactly as follows: JAWS 2/9/93 MASTER. / / PROD. RELEASE REV 1.0 CS#1B26 It had a 4 MB simm on it, I just purchased 2-16MB simms from SOftware Hut (THANKS!) but it only recognizes them as 8MB. I have tried searching but all the info leads to dead links. Any help would be appreciated. Thanks in advance. gtrmn01 Attached Thumbnails Last edited by gtrmn01; 08 February 2010 at 19:45.

08 February 2010, 19:57	#2
solaris104 Registered User Join Date: Jul 2008 Location: Czechia Posts: 99	In google I found this: A1230 Turbo+ (original) Jumpers: J1 - ON - 68020 / (OFF - 68030) J2 - RESERVED (ON) J3 - RESERVED (OFF) J4 - RESERVED (OFF) J5 - (ON - No 16MB SIMMS) / OFF - 16MB SIMMS PRESENT J6 - RESERVED (OFF) CN4 - RESERVED (OFF) CN5 - (ON - 4k REFRESH DRAM 16M) / OFF - 2k REFRESH DRAM 16M CN6 - RESERVED (ON) CN7 - RESERVED (OFF) (.)=DEFAULT

08 February 2010, 21:52	#3
gtrmn01 Registered User Join Date: Dec 2009 Location: Shelton,CT/USA Age: 68 Posts: 22	Solaris104... Thank you, I saw that message and I THOUGHT my board didn't have a CN4. Actually I OPENED my eyes (or getting old ) and it was up above covered by the metal plate. Now the settings make sense. THANK you so much. I have now 32mb to play with WOOOHOOO NOW to find a software pack that works with version 1. I tried all the ones on EAB file server and other sources, but they all give me error message not compatible with my board.

03 September 2013, 20:21	#4
bobingabout Registered User Join Date: Aug 2012 Location: England Posts: 41	This is actually useful information. I was just in the same boat, I had a 16MB SIMM recognised as an 8MB SIMM. The information I found on google all sugests that J3 is the 16MB disable jumper, not J5, however, the numbering order of the jumpers is strange, starting from the right you have J4, J6, J5, J3, J2, J1. the default pattern listed did not match where the jumpers were on my board. However, if you number them in order from the right, starting with J1, then the 3rd jumper is J3, and everything matched up with the defaults, so what the manuals I were finding were naming J3, was labled on the board as J5. So I pulled J5, as your information sugests, and everything works!

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