Which 486VLB motherboard to use? \ VOGONS

Which 486VLB motherboard to use?

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First post, by KingPing

Posted on 2017-04-18, 02:43

KingPing Offline

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Hello!

Im going to build a 486 PC with a AMD 486 DX4-100 (have both NV8T and the SV8B) and hopefully a VLB video card, problem is i've no idea which of this 2 mobos is better.

Option A:
ECS (i think) UM4981 AIO REV1.0

This rev doesn't support natively the AMD DX4-100, although it boots fine and says it's a DX2 at 100MHz (any problem with that?)

The attachment WP_20170417_23_00_26_Pro.jpg is no longer available

Option B:
FIC 486-PVT

The attachment WP_20170417_22_59_08_Pro.jpg is no longer available

Which one should i use???

Reply 1 of 6, by Ampera

Posted on 2017-04-18, 04:04

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IMO, Option A, but not having the boards take whichever one has pure 72-pin SIMM slots (Unless they both have them)

TBH I am in love with my EXP-4045, but that wasn't an option soooo.

Last edited by Ampera on 2017-04-18, 15:55. Edited 1 time in total.

Reply 2 of 6, by SSTV2

Posted on 2017-04-18, 14:01

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Make it simple, max out performance via BIOS settings on both MBs and use same hardware (gfx card, cpu, ram) to bench doom1/2 on them, that way you'll know better than anyone else which MB is faster.

Last edited by SSTV2 on 2017-04-18, 15:55. Edited 1 time in total.

Reply 3 of 6, by Ampera

Posted on 2017-04-18, 14:19

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forgot to tell you what CPU to use. Use the SV8B, it's faster than the NV8T

Reply 4 of 6, by Anonymous Coward

Posted on 2017-04-18, 15:10

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Option 1. UMC chipsets are good. ECS 486 boards are good too.

"Will the highways on the internets become more few?" -Gee Dubya
V'Ger XT|Upgraded AT|Ultimate 386|Super VL/EISA 486|SMP VL/EISA Pentium

Reply 5 of 6, by KingPing

Posted on 2017-04-18, 20:30

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Any problem with the UM4981 AIO Rev1.0 not supporting the DX-100?

It boots fine and report it as a DX2 100MHz, is there any danger of damaging something? I'll try both the ECS and the FIC and see which is faster anyway 😀

Reply 6 of 6, by Ampera

Posted on 2017-04-18, 22:25

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If it is running it at 3.3v or you are using a VRM adapter, then there is 0 issue. My guess is at the time the BIOS was programmed, the name DX4 didn't exist, so they just threw DX2 on there.

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