The start of a EPIC Dual Pentium Pro Build

Elf

Storybook
Feb 4, 2019
750
223
43
Western United States
Interesting daughter board for carrying the two CPUs, I don't think I have seen that arrangement on anything x86 before! Although, I guess you could consider the cartridge type Pentium II processors to be somewhat similar.
 

Irinikus

Well-known member
Dec 16, 2019
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South Africa
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The really cool thing about this particular board is that you can get daughter boards which allow it to support dual Pentium’s/Pentium Pro’s/Pentium II’s, allowing for excellent comparison’s between them!
 
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Irinikus

Well-known member
Dec 16, 2019
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South Africa
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The Intergraph Intense 3D 3400 + Lynx4 will be the weapon of choice as far as graphics for this system goes: (It's the best PCI-based system from Intergraph that I'll be able to fit into the system)



I already have the Lynx 4 Geometry Card:



It's performance isn't as good as that of the voodoo2 setup that I'll be installing in the single Pentium Pro setup, but it is a Pro card! (But it does run at twice the colour depth!)

 
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Irinikus

Well-known member
Dec 16, 2019
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So these are the components that I'm getting from Poland for this build:



This is a really cool motherboard, but it does come with one rather large limitation in that it can only really be supported in certain full tower cases, due to the orientation of the CPU card!

The CPU's face upwards and therefore require clearance from the drive bays and very few cases have that available clearance!

Funny enough the Vobis highscreen colani 486 Computer Case is one of the few capable of the job. I now need to find someone in Germany willing to ship one to me, as most sellers aren't willing to do so!!! :(

If I manage to get one, I will have to perform an expert RetroBright job on it and apply UV stabilisation once complete. (I have already done some research on this.)
 
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Irinikus

Well-known member
Dec 16, 2019
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I had a huge amount of drama with this board today, as there was a hidden connection fault in the plug which connects the ATX to AT converter cable to the ATX plug on the power supply!

I wanted to send it back to the seller as a faulty board, but as it turns out it was a power coupling connection problem!

Here are some pice of it connected up and booted to BIOS: (For some reason it doesn't like the Matrox G450 card, so I've had to slot the Dynamic pictures Oxygen 202)







The CPU's are currently clocked @ 133MHz, as the system isn't fitted with active cooling.

Thus far I've only been able to find a non-alpha Windows 95 driver for this card, and of cause, this won't do! (Any help in this would be much appreciated!!!)
 

Irinikus

Well-known member
Dec 16, 2019
566
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South Africa
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I now have windows NT4 SP6 installed with the Oxygen 202 driver!



And 3D StudioMax R3 is up and running on the system:





The Oxygen card has special settings for various 3D packages, including StudioMax:

 
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MatzeLoCal

New member
Sep 1, 2021
1
0
1
I've just committed to buying this little monster: (I will only start working on it once I've completed my EPIC single Pentium Pro build!)





I have the same board but with Dual Pentiums. Back then I used it for my BeOS daily driver. My plan was to upgrade just the daughter boards … but then I bought a new Asus Board with Dual PII@350 for my final BeOS machine.
I still have the computer in the attic …but not sure if it still working
 

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