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VL486 Motherboard

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First post, by aacheron

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Hi again, I'm having seriusly problems to get this mobo working (Unidenfied VL-486).

I only have this info :
http://stason.org/TULARC/pc/motherboards/U/UN … -486-VL486.html

I can't get it shows bios or even vga bios. I think It's a memory mather, manual above indicates that only supports 30 pin FPM SIMM with parity (9 chips not 3 chips simms). I tried to get some but without any luck, but It's question of time until I can get correct SIMMs to test this.

I tried my FPM SIMMs with no parity chip, without success.

With a speaker installed, it beeps continously (8 beeps) then stop. Keyboard lights flash at power on and processor (in working order) gets hot...

Any of you have had this mobo? I can't belive it can be so special with memory simms.

Any idea?

Thanks mates!

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Reply 1 of 6, by aacheron

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🤣 Very bad pic, sorry, more info :

VL-486 Rev. 1.0

256Kb cache

Chipset - UMC
UM82C482AF
UM82C481BF
UM82C206F

nextron 751-98 (written onto a isa bus side, I think it's not important, it's only bus connector manufacturer)

AMI BIOS AB3804109 '93

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Reply 2 of 6, by luckybob

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unless i'm drunk, but 8 beeps on an ami bios board is memory error. Aparently it wants those 9 chip 30 pin simms.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 3 of 6, by aacheron

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luckybob wrote:

unless i'm drunk, but 8 beeps on an ami bios board is memory error. Aparently it wants those 9 chip 30 pin simms.

Yes I know, It's a bit temperamental mobo, I'm trying to find those "ultra rare" simms, it refuse to boot with any of my simms... If I'm lucky, next week I will get that 9 chips simms...

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Reply 5 of 6, by shspvr

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aacheron wrote:
luckybob wrote:

unless i'm drunk, but 8 beeps on an ami bios board is memory error. Aparently it wants those 9 chip 30 pin simms.

Yes I know, It's a bit temperamental mobo, I'm trying to find those "ultra rare" simms, it refuse to boot with any of my simms... If I'm lucky, next week I will get that 9 chips simms...

I just wonding you are installing 4 stick in Bank 0 rigth?.
Here old list on beep code
http://www.computerhope.com/beep.htm

Reply 6 of 6, by aacheron

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shspvr wrote:
I just wonding you are installing 4 stick in Bank 0 rigth?. Here old list on beep code http://www.computerhope.com/beep.htm […]
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aacheron wrote:
luckybob wrote:

unless i'm drunk, but 8 beeps on an ami bios board is memory error. Aparently it wants those 9 chip 30 pin simms.

Yes I know, It's a bit temperamental mobo, I'm trying to find those "ultra rare" simms, it refuse to boot with any of my simms... If I'm lucky, next week I will get that 9 chips simms...

I just wonding you are installing 4 stick in Bank 0 rigth?.
Here old list on beep code
http://www.computerhope.com/beep.htm

Of course! Also I tried (as a desperate option) Bank1

Thanks for the link, i'm sure it's a memory issue.

*** building better worlds ***

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