= AST RESEARCH, INC. TECHNICAL BULLETIN # 1072 2-15-95 = USE OF CMD640X.SYS WITH AST SYSTEMS PROBLEM Use of the CMD640X.SYS driver may cause sporadic errors and other non-destructive failures in otherwise functional systems. CAUSE Unstable driver. The functionality and purpose of this driver are obsolete. SYSTEMS AFFECTED AST PART NUMBER AND DESCRIPTION 501680-001 2 BMS P90/1003C AA STIN 16MB256K 501533-304 C BMS P-60/423W 8MB/1MB FRA 230V 501534-204 C BMS P-90/423W 8MB/1MB FRA 230V 501534-404 4 BMS P/90 543W 8MB/1MB 230V FRA 501701-404 B BMS P/75 543W 8MB/1MB 230V FRA 501701-504 B BMS P/75 1003W 16MB/1MB 230V FRA 501533-307 C BMS P-60/423W 8MB/1MB GER 230V 501534-207 C BMS P-90/423W 8MB/1MB GER 230V 501534-407 4 BMS P/90 543W 8MB/1MB 230V GER 501701-407 B BMS P/75 543W 8MB/1MB 230V GER 501701-507 B BMS P/75 1003W 16MB/1MB 230V GER 501533-308 C BMS P-60/423W 8MB/1MB ITL 230V 501534-208 C BMS P-90/423W 8MB/1MB ITL 230V 501534-408 4 BMS P/90 543W 8MB/1MB 230V ITL 501701-408 B BMS P/75 543W 8MB/1MB 230V ITL 501701-508 B BMS P/75 1003W 16MB/1MB 230V ITL 501533-309 C BMS P-60/423W 8MB/1MB NOR 230V 501534-209 C BMS P-90/423W 8MB/1MB NOR 230V 501534-409 4 BMS P/90 543W 8MB/1MB 230V NOR 501701-409 B BMS P/75 543W 8MB/1MB 230V NOR 501701-509 B BMS P/75 1003W 16MB/1MB 230V NOR 501533-310 C BMS P-60/423W 8MB/1MB SPN 230V 501534-210 C BMS P-90/423W 8MB/1MB SPN 230V 501534-410 4 BMS P/90 543W 8MB/1MB 230V SPN 501701-410 B BMS P/75 543W 8MB/1MB 230V SPN 501701-510 B BMS P/75 1003W 16MB/1MB 230V SPN 501533-311 C BMS P-60/423W 8MB/1MB SWD 230V 501534-211 C BMS P-90/423W 8MB/1MB SWD 230V 501534-411 4 BMS P/90 543W 8MB/1MB 230V SWD 501701-411 B BMS P/75 543W 8MB/1MB 230V SWD 501701-511 B BMS P/75 1003W 16MB/1MB 230V SWD 501533-302 3 BMS P-60/423W 8MB/1MB UK 230V 501533-303 3 BMS P-60/423W 8MB/1MB INTL 230V 501534-202 3 BMS P-90/423W 8MB/1MB UK 230V 501534-203 3 BMS P-90/423W 8MB/1MB INTL 230V 501534-402 4 BMS P/90 543W 8MB/1MB 230V UK 501534-403 4 BMS P/90 543W 8MB/1MB 230V INT 501701-402 B BMS P/75 543W 8MB/1MB 230V UK 501701-502 B BMS P/75 1003W 16MB/1MB 230V UK 501533-313 3 BMS P-60/423W 8MB/1MB DUT 230V 501534-213 3 BMS P-90/423W 8MB/1MB DUT 230V 501534-413 4 BMS P/90 543W 8MB/1MB 230V DUT 501701-413 B BMS P/75 543W 8MB/1MB 230V DUT 501701-513 B BMS P/75 1003W 16MB/1MB 230V DUT 501533-312 C BMS P-60/423W 8MB/1MB LAT 115V 501534-212 C BMS P-90/423W 8MB/1MB LAT 115V 501534-412 4 BMS P/90 543W 8MB/1MB 115V LAT 501701-412 B BMS P/75 543W 8MB/1MB 115V LAT 501701-512 B BMS P/75 1003W 16MB/1MB 115V LAT 501533-305 C BMS P-60/423W 8MB/1MB SWF 230V 501534-205 C BMS P-90/423W 8MB/1MB SWF 230V 501534-405 4 BMS P/90 543W 8MB/1MB 230V SWF 501701-405 B BMS P/75 543W 8MB/1MB 230V SWF 501701-505 B BMS P/75 1003W 16MB/1MB 230V SWF 501533-306 C BMS P-60/423W 8MB/1MB SWG 230V 501534-206 C BMS P-90/423W 8MB/1MB SWG 230V 501534-406 4 BMS P/90 543W 8MB/1MB 230V SWG 501701-406 B BMS P/75 543W 8MB/1MB 230V SWG 501701-506 B BMS P/75 1003W 16MB/1MB 230V SWG 501533-401 3 BMS P-60/733C 16MB/1MB 115V 501534-301 3 BMS P-90/733C 16MB/1MB 115V 501533-404 C BMS P-60/733C 16MB/1MB FRA 230V 501534-304 C BMS P-90/733C 16MB/1MB FRA 230V SOLUTION AST recommends that users remove the CMD640X.SYS reference from their CONFIG.SYS file. Functionality provided by this driver has been incorporated in the AST system BIOS. Configuration of advanced features can be achieved with the Admin Tools Utility program. The file name is 775033.EXE. These utilities may be found on various on-line services including: AST's BBS (817) 230-6850, in the "Systems" file area. AST's BBS supports modem speeds up to 28.8k bps. The above file will also be posted on: CompuServe Go ASTSUPPORT AST Worldwide Web Site http://www.ast.com For further information on the Administrator Tools, see Software Bulletin # 0202 located on AST's BBS, in the "Systems" file area.