VOGONS


First post, by ubiq

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The Concept
I've already gone and built a few "dream" retro PCs, this time I just want a decent Windows 98 machine in the 300-500 MHz range. Really want to target 1998-1999 "ok" performance. So, I'm not trying to max out any particular motherboard or CPU. I also have a PicoGUS, and I figure this would be a good machine to check the new CDROM emulation features that have been developed.

The Challenge
I'm only going to use parts I already have lying around, including this mATX BitFenix Prodigy M 2022 case:

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The Hardware
I have a bunch of motherboards I can choose from, but I want to use the PicoGUS, it's got to have ISA. I also feel that a 1998-1999 era computer should have some kind of early AGP video card (also, I don't really have an appropriate PCI video card, best I have is a Radeon 7000 which is too new!).

So, both ISA and AGP. This rules out both my actual mATX boards: an ASUS P3B-1394 and a Gigabyte GA-5SMM. So I'm going to go hardmode and cram a BabyAT board in here, which gives me a choice of: Acorp 6VIA85P, Acorp 6ZX85, Procomp Informatics B684, and a Soyo SY-6IEB.

Arguably the worst choice, I'm going with the Soyo as it has the least miserable slot layout in terms of actually having a chance at fitting in the case:

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For the rest of the hardware:
CPU: Celeron 333 (SL2WN)
Memory: 128 MB of "SpecTek" RAM
Storage: 160 GB Samsung 2.5" PATA laptop HD (this case was designed only for SSDs.. hopefully this works)
Graphics: nVidia TNT2 Vanta 16 MB AGP + Voodoo 2
Sound: Sound Blaster AWE 64 Value (with a 16 MB upgrade) + PicoGUS

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Phew! I think this is going to be a winning combination! Now to throw these parts at the case and see what sticks...

Reply 1 of 12, by ubiq

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Ok, I'd call this a good first start:

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HD fits like a dream:

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Port situation is pretty cramped though:

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No optical media was a given, but no removable media at all is a pain. I think I'm going to try can cram a SD card drive in there somehow. Also plan to pin-out the PS2 connector and get that in there somewhere. I actually have the onboard USB connected to the case's built-in side-panel slots, but a couple rear slots might be useful too...

Reply 2 of 12, by Nexxen

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Nothing wrong here, only a beautiful project 😀
Voodoo + Pico gus : nice!

PC#1 Pentium 233 MMX - 98SE
PC#2 PIII-1Ghz - 98SE/W2K

"One hates the specialty unobtainium parts, the other laughs in greed listing them under a ridiculous price" - kotel studios
Bare metal ist krieg.

Reply 3 of 12, by shevalier

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ubiq wrote on Today, 01:02:

Phew! I think this is going to be a winning combination! Now to throw these parts at the case and see what sticks...

The case is simply gorgeous, by the way.
The Celeron 300/333 is a timeless gaming classic of that era.
There's one caveat, though: at 100 MHz FSB(300Mhz -> 450) , it's faster than many PII.
Unfortunately, the LX/EX can't do that. You need at least a ZX.

Aopen MX3S, PIII-S Tualatin 1133, Radeon 9800Pro@XT BIOS, Audigy 4 SB0610
JetWay K8T8AS, Athlon DH-E6 3000+, Radeon HD2600Pro AGP, Audigy 2 Value SB0400
Gigabyte Ga-k8n51gmf, Turion64 ML-30@2.2GHz , Radeon X800GTO PL16, Diamond monster sound MX300

Reply 4 of 12, by ubiq

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Nexxen wrote on Today, 01:59:

Nothing wrong here, only a beautiful project 😀
Voodoo + Pico gus : nice!

Thanks! 😊

Reply 5 of 12, by ubiq

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shevalier wrote on Today, 06:05:

The case is simply gorgeous, by the way.

Yeah! It certainly looks good in pictures (which sold me on it, originally), but it has its issues. Those plastic handles are much less sturdy than they should be, making the whole thing rather wobbly. The power cable routing for the PSU is a horrific mess. And having the power buttons, lights, and USB on a removable side panel is a real pain it the butt when building a system!

shevalier wrote on Today, 06:05:

The Celeron 300/333 is a timeless gaming classic of that era.
There's one caveat, though: at 100 MHz FSB(300Mhz -> 450) , it's faster than many PII.
Unfortunately, the LX/EX can't do that. You need at least a ZX.

Yup, knew this going in. At best, I can put a 533 MHz Celeron on a slocket and see how that performs. One of my Acorp boards has an Apollo Pro 133 chipset which would open up a lot of possibilities, but I feel that's slightly newer than the specs I'm targeting (and the slowest CPU I have to put in it is a P3 750).

Reply 6 of 12, by shevalier

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ubiq wrote on Today, 13:20:
shevalier wrote on Today, 06:05:

The Celeron 300/333 is a timeless gaming classic of that era.
There's one caveat, though: at 100 MHz FSB(300Mhz -> 450) , it's faster than many PII.
Unfortunately, the LX/EX can't do that. You need at least a ZX.

Yup, knew this going in. At best, I can put a 533 MHz Celeron on a slocket and see how that performs. One of my Acorp boards has an Apollo Pro 133 chipset which would open up a lot of possibilities, but I feel that's slightly newer than the specs I'm targeting (and the slowest CPU I have to put in it is a P3 750).

Nope, the problem is that the Pentium 2's L2 cache doesn't operate at full speed, making it slow.
And the Celeron with a 100 MHz FSB and no L2 cache outperformed the Pentium 2 with a 66 MHz FSB thanks to faster memory, even with equal core frequencies.
But only the lower-end Mendocino models—the 300A, and often the 333—can operate at a 100 MHz FSB.
The higher the frequency, the less likely it is. The processor multiplier is locked. And the Mendocino process technology only allows frequencies of 300–550 MHz.
This was the key to creating a "student" PC.

Aopen MX3S, PIII-S Tualatin 1133, Radeon 9800Pro@XT BIOS, Audigy 4 SB0610
JetWay K8T8AS, Athlon DH-E6 3000+, Radeon HD2600Pro AGP, Audigy 2 Value SB0400
Gigabyte Ga-k8n51gmf, Turion64 ML-30@2.2GHz , Radeon X800GTO PL16, Diamond monster sound MX300

Reply 7 of 12, by RetroPCCupboard

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Looka great. Well done. How did you handle the mounting of the motherboard? I am assuming there were no mouting holes of AT motherboard?

Reply 8 of 12, by Hans Tork

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Really awesome build. The voodoo 2`s are so expensive. Back then this might have been an "ok" build, but right now this would qualify as a premium retro build. TNT2 with voodoo 2 would probably make a killer combo for early and late DOS games.

I once thought about getting the PicoGUS. I have heard it is really convenient. How does it fare and sound as compared to the actual AWE 64 or other cards it emulates?

i7/Titan X/X-Fi- XP
P4/X800/Audigy 2 ZS- W98
P3/Voodoo 3 3000/AWE 64 - W95

Reply 9 of 12, by ubiq

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shevalier wrote on Today, 13:45:
Nope, the problem is that the Pentium 2's L2 cache doesn't operate at full speed, making it slow. And the Celeron with a 100 MHz […]
Show full quote
ubiq wrote on Today, 13:20:
shevalier wrote on Today, 06:05:

The Celeron 300/333 is a timeless gaming classic of that era.
There's one caveat, though: at 100 MHz FSB(300Mhz -> 450) , it's faster than many PII.
Unfortunately, the LX/EX can't do that. You need at least a ZX.

Yup, knew this going in. At best, I can put a 533 MHz Celeron on a slocket and see how that performs. One of my Acorp boards has an Apollo Pro 133 chipset which would open up a lot of possibilities, but I feel that's slightly newer than the specs I'm targeting (and the slowest CPU I have to put in it is a P3 750).

Nope, the problem is that the Pentium 2's L2 cache doesn't operate at full speed, making it slow.
And the Celeron with a 100 MHz FSB and no L2 cache outperformed the Pentium 2 with a 66 MHz FSB thanks to faster memory, even with equal core frequencies.
But only the lower-end Mendocino models—the 300A, and often the 333—can operate at a 100 MHz FSB.
The higher the frequency, the less likely it is. The processor multiplier is locked. And the Mendocino process technology only allows frequencies of 300–550 MHz.
This was the key to creating a "student" PC.

Sorry, I meant that the Acorp board would open up other (Pentium II) CPU possibilities - I get that there's little overclocking potential in faster Mendocino Celerons. So yeah, if I'm stuck at 66 MHz FSB then at least 533 MHz > 333 MHz. Of course the classic build would be a 300A @ 450 on a BX, but I'm working with what I got here!

Reply 10 of 12, by ubiq

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RetroPCCupboard wrote on Today, 15:18:

Looka great. Well done. How did you handle the mounting of the motherboard? I am assuming there were no mouting holes of AT motherboard?

Yeah, there's no overlap between BabyAT and mATX. So it meant a lot of careful(ish) work with my Dremel making new holes. I wasn't as accurate/careful enough to keep the holes small enough to thread the standoffs into, so I had to use a nut on the back of each. Also, the bottom-left hole on the board isn't grounded so I just put a standard BabyAT plastic standoff in there and left it floating. I could go back and use an actual screw-in nylon standoff, but ehhh.. the board is quite stable without it.

Basically, BabyAT in a mATX case is very doable, you just have to want it! (It also helped that all the boards I was looking at were late 90's transitionary boards that all support ATX power.)

Reply 11 of 12, by ubiq

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Hans Tork wrote on Today, 18:13:

Really awesome build. The voodoo 2`s are so expensive. Back then this might have been an "ok" build, but right now this would qualify as a premium retro build. TNT2 with voodoo 2 would probably make a killer combo for early and late DOS games.

I once thought about getting the PicoGUS. I have heard it is really convenient. How does it fare and sound as compared to the actual AWE 64 or other cards it emulates?

I'm still in the building phase of this one and haven't really got in to putting it through its paces yet. I'm also using this build to explore the PicoGUS, which I haven't done much of as of yet. That said, last night I had a peek at where the PicoGUS project is at these days and a lot has changed in the past year! With everything it can do now, I'm thinking that the AWE 64 might actually be redundant in this build...

Reply 12 of 12, by ubiq

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Ok, hold on to your socks... I've solved my slot shortage problem by enabling this case's True Gamer Mode:

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As you can see, I've now found room for both rear USB slots as well as an SD to IDE adapter (using a CF card adapter face plate 🥴):

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😊