neil@cs.hw.ac.uk (Neil Forsyth) (01/29/91)
In article <4280020@hpgnd.grenoble.hp.com> alex@hpgnd.grenoble.hp.com (Alexis MERMET-GRANDFILLES) writes: >Some people say we can use 2 x 1Meg SIMMS and 2 x 256K SIMMS to make >a 2.5 Meg STE system. > >Is it actually reliable and supported by ATARI ? Atari has a policy of not supporting anything that they don't produce. ie. 2,2.5 or 4Mb STEs are not for sale therefore if they don't work you needn't bother asking them about it. The mixing of SIMMS to get 2.5Mb is screwed up by a bug in TOS 1.6. The ROM code that sizes up memory assumes that both banks are the same size. I don't know if this is fixed in TOS 1.62. Would Atari care to comment on that? Anyway the patch is to put a program in you auto folder that checks the memory configuration and if it's not 2.5Mb make it so, set phystop to $2800000 and reset by jumping through $4. It seems that this policy also extends to hard disks. Atari UK apparently do not entertain STE hard disk problems unless the HD is an Atari one. While this is sort of understandable they should at least help the HD manufacturers to get it right if it's their fault. I believe long DMA cables (>18") contribute to the problem. I'd really like to know if new STEs have this problem resolved because I can see it hurting serious ST sales. >-------------------------------------------------------------------------- >Alexis MERMET-GRANDFILLES >alex@hpgndxo.hp.com >-------------------------------------------------------------------------- +----------------------------------------------------------------------------+ ! DISCLAIMER:Unless otherwise stated, the above comments are entirely my own ! ! ! ! "I think all right thinking people in this country are sick and tired of ! ! being told that ordinary decent people are fed up in this country with ! ! being sick and tired. I'm certainly not and I'm sick and tired of being ! ! told that I am!" - Monty Python ! ! ! ! Neil Forsyth JANET: neil@uk.ac.hw.cs ! ! Dept. of Computer Science ARPA: neil@cs.hw.ac.uk ! ! Heriot-Watt University UUCP: ..!ukc!cs.hw.ac.uk!neil ! ! Edinburgh, Scotland, UK ! +----------------------------------------------------------------------------+