CompuServe Thread

#* Accelerator boards *

9 messages in this thread
#195478From: NiklasMay 2, 1995 11:18 AM
Hi, A friend of mine bought an accelerator card for his Amiga and I believe it's called DKB 1202? He tried to upgrade the card with two SIMMs of 1Meg each but hasn't been able to boot the card with the additional memory. I'm not certain about the name of the card and I'm not an Amigauser myself so I'm just forwarding his question to you. Please let me know if you have any experience about this card and any suggestions about how to make it work! Thanks Peter
#195499From: LEPIDO R VARGASMay 2, 1995 3:48 PM
try writing to amigavendor forum and ask dkb software how he can boot his 1200
#195509From: Keith MeyersMay 2, 1995 6:03 PM
I'd suggest that he check to make sure the memory is non-parity, or Mac compatible memory. "IBM PC" memory probably will not work due to the parity bit it includes. Although I've never seen the accelerator board, I _think_ it has 72-Pin SIMM slots, and I'd like to point out that I've never seen a 1MB 72-Pin SIMM, so he may also have some kind proprietary modules. Regards, Keith.
#195530From: Rick GreenMay 2, 1995 10:17 PM
PMJI, but you can use IBM PC memory with parity bit on these accelerators. I used one 8MB IBM Simm in my CSA 12 guage for a while before I got my 16MB Mac Simm. The parity bit is just ignored. Chances are, he just got hold of a proprietary Simm. Now on the Internet with Compuserve and PPP Rick Green Via AP1.80
#195542From: Jonathan BlackwellMay 2, 1995 11:40 PM
All accelerators that I know can use the IBM type SIMM's … they just ignore the parity chip. Also, 72pin SIMM's are the most commonly avaialable 32bit memory now. -Jonathan MAC Quadra/486PC compatible courtesy Amiga, Emplant and BB. Emplant beta tester. Running AP v1.80. E-mail: JonathanB@delrina.com http://www.delrina.com
#195626From: Jim SakladMay 3, 1995 6:47 PM
Keith – > I'd like to point out that I've never seen a 1MB 72-Pin SIMM Isn't that what came in the "stock" A4000? Four 1meg SIMMS? jsaklad@welchlink.welch.jhu.edu . . JimDoc, on AutoPilot
#195729From: Keith MeyersMay 4, 1995 5:26 PM
Don't know, never seen a stock A4000. It could have had one 4MB SIMM. Regrads, Keith.
#195827From: Van Hoyweghen KarlMay 5, 1995 3:45 PM
Jim my A4000 came with one 4meg SIMM. (it was so high I couldn't use te last expansion slot!) Karl Van Hoyweghen (going offline a few days for rebuilding my A4000 in Z7-tower)
#195616From: Ronald B. RomineMay 3, 1995 5:48 PM
Nik >>I believe it's called DKB 1202? He tried to upgrade the card with two SIMMs of 1Meg each but hasn't been able to boot the card with the additional memory.<< I don't believe the DKB 1202 offers support for two 1-meg SIMMs. Due to the design, it supports: – one 1-meg SIMM (1-meg RAM) – one 4-meg SIMM (4-megs RAM) – two 4-meg SIMMs (8-megs RAM) – and a mix of one 1-meg SIMM + one 4-meg SIMM (5-megs RAM). Try the 1-meg option using each SIMM to make sure they are good. Also, doulbe check the jumpers, I remember that there was a typo in the manual concerning the jumper settings for one of the configurations. Ron.