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replacement for 80286

Cimonvg

Experienced Member
Joined
Apr 4, 2009
Messages
267
Location
scandinavia
Heh. I'm going to hazard a guess that the logic is to double the host CPU clock so the 386sx runs at closer to its rated clock speed. (And also to support the FPU socket?) I do vaguely remember once reading a review of 386sx upgrade boards (PC Magazine?) that featured at least one board that didn't do that. It's amazing to contemplate what it'd be like to have an original 6mhz AT with one of those installed.

Hello
i did some tests. AMD286-8mhz - AMD286-6mhz -

to compare against:

View attachment 60006
;Data collected by: TOPBENCH | Benchmark and detection stub | Version 0.97
;This file contains fingerprinting information about your computer. Please
;email this file to trixter@oldskool.org with a subject line of "Benchmark" to
;help test these routines and seed the TOPBENCH database.

[UIDF102A099F]
MemoryTest=924
OpcodeTest=398
VidramTest=779
MemEATest=515
3DGameTest=386
Score=16
CPU=Intel 80286
CPUspeed=8 MHz
BIOSinfo=R(C)1985-1989, American Megatrends Inc,.All Rights Reserved.1346 Oakbrook Drive, Suite-120, Norcross, GA-30093. Phone-(404)-263-8181. (04/30/89, rev. 0)
MachineModel=01FC
BIOSdate=19890430
BIOSCRC16=F102
VideoSystem=VGA
VideoAdapter=VGA, Paradise PVGA1A, 8-Bit-Video, 8-Bit-ROMfixed-sync, 512kb Vi
Machine=AT clone

and the MakeIt486 (no cache enabled):

View attachment 60007
;Data collected by: TOPBENCH | Benchmark and detection stub | Version 0.97
;This file contains fingerprinting information about your computer. Please
;email this file to trixter@oldskool.org with a subject line of "Benchmark" to
;help test these routines and seed the TOPBENCH database.

[UIDF1026E7]
MemoryTest=769
OpcodeTest=372
VidramTest=787
MemEATest=491
3DGameTest=358
Score=18
CPU=Cyrix/TI 486-class processor
CPUspeed=33 MHz
BIOSinfo=R(C)1985-1989, American Megatrends Inc,.All Rights Reserved.1346 Oakbrook Drive, Suite-120, Norcross, GA-30093. Phone-(404)-263-8181. (04/30/89, rev. 0)
MachineModel=01FC
BIOSdate=19890430
BIOSCRC16=F102
VideoSystem=VGA
VideoAdapter=VGA, Paradise PVGA1A, 8-Bit-Video, 8-Bit-ROMfixed-sync, 512kb Vi
Machine=AT clone

and at last the "new" Nokia-module:
View attachment 60008
;Data collected by: TOPBENCH | Benchmark and detection stub | Version 0.97
;This file contains fingerprinting information about your computer. Please
;email this file to trixter@oldskool.org with a subject line of "Benchmark" to
;help test these routines and seed the TOPBENCH database.

[UIDF102920]
MemoryTest=1048
OpcodeTest=396
VidramTest=771
MemEATest=527
3DGameTest=401
Score=16
CPU=AMD Am386SX
CPUspeed=8 MHz
BIOSinfo=R(C)1985-1989, American Megatrends Inc,.All Rights Reserved.1346 Oakbrook Drive, Suite-120, Norcross, GA-30093. Phone-(404)-263-8181. (04/30/89, rev. 0)
MachineModel=01FC
BIOSdate=19890430
BIOSCRC16=F102
VideoSystem=VGA
VideoAdapter=VGA, Paradise PVGA1A, 8-Bit-Video, 8-Bit-ROMfixed-sync, 512kb Vi
Machine=AT clone

..i had to build some socket extensions , but after i firm pressure the Nokia-module did connect to the motherboard ;)
View attachment 60009

The speed of this "new" (a call it new - i have never used it before :D ) nokia-module is not doubled. But the feeling , when used in PCDOS is better then the MakeIt486 (without cache enabled) !!
/cimonvg

(edit amd286-6mz to amd286-8mhz)
 
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