Pentium 2 VS 3 for period accurate win98 build?

Posted on 2019-10-25, 01:35

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looking to build a nice late windows9x/dos build. Something semi-period accurate either in the 98, or 99 ish range. Initially i had a P3 1ghz + Voodoo 3 in mind for the smoothest experience. But my period correct love would find more pleasure in sticking "to the 90s" and not the early 2000s that a …

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Re: Motherboard won't run P133 at proper mhz

Posted on 2019-09-19, 07:17

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

WOW... the overdrive CPUs have gone way up in price... glad I got one that came with a board for cheap. Same for the 83Mhz one for 486 boards. Anyway, Kingston did make an upgrade that had either a K6-200 or an Intel 200MMX. Regarding the Intel Overdrives for a second, is it true that the 200mhz …

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Re: Motherboard won't run P133 at proper mhz

Posted on 2019-09-19, 03:10

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Jackpot! If PCI clock @ 80MHz FSB also gets overclocked, then system should perform sligtly faster @ 120MHz than @ 133MHz (2x66MHz). You got some nice potential here with OCing, technically you can run a P55C @ 280MHz (3.5x80MHz) in that early pentium board. https://www.vogons.org/viewtopic.php?f= …

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Re: Motherboard won't run P133 at proper mhz

Posted on 2019-09-19, 01:13

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

How were you able to get 60 and 120MHz with only a 1.5x mult.? Either your motherboard's PLL supports 40 and 80MHz or it, in fact, has a undocumented 2x multiplier setting. Write down the model of your PLL chip, it must have a 14.318MHz quartz nearby. Hmm, i must not be good at finding or seeing …

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Re: Motherboard won't run P133 at proper mhz

Posted on 2019-09-18, 23:41

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Back with the Compaq 7170 again, trying to upgrade the p90 inside to a p133. After a bit of playing around i found that jumping JP7 1-2 and 3-4 would get me to 120mhz. Was it really running at 120Mhz? It could also be a BIOS reporting wrong speed. As this would be only possible 2x 60Mhz. I'd play …

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Re: Motherboard won't run P133 at proper mhz

Posted on 2019-09-18, 04:19

by

by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Soldering isn't even necessary. You can just wrap a single wire strand around Vss (ground) and a BF0 pin to set CPU multiplier to 2x, inserting a thin wire between Vss and BF0 in the socket would also do the trick. I used this trick on a IBM 330-p75 to set CPU multiplier to 3x. If your 133MHz P1 …

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Motherboard won't run P133 at proper mhz

Posted on 2019-09-18, 00:02

by

by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Back with the Compaq 7170 again, trying to upgrade the p90 inside to a p133. Can anyone help me figure out these jumpers? I can't for the life of me get it going at 133 proper. pic1.png This motherboard is funky, jumping it for 66mhz bus as stated on the chart downclocks the cpu to 100mhz. After a …

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3DFX Voodoo acting weird with textures

Posted on 2019-09-10, 06:07

by

by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got my hands on this Skywell Magic 3D ( https://i.imgur.com/lRZTTZS.jpg ), but i can't tell if its acting up. Anyone else notice their Voodoo giving them slight rainbow bands on textures? quake.jpg (You might need to zoom in to see) The middle bridge in particular displays this weird rainbow effect. …

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Re: Motherboard not detecting L2 Cache

Posted on 2019-08-22, 16:55

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

"pentium", that's the cruciual info I have managed to miss... Pentiums have 64bit databus which means all the cache sockets must be filled (each chip is 8 bits). Ahh, Looks like i gotta go shopping for a new set of 256k then. Now regarding the TAG ram. Anything i need to look out for to identify …

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Re: Motherboard not detecting L2 Cache

Posted on 2019-08-22, 16:51

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I know that you have to install SIMMs in pairs because of Pentium’s 64-bit bus, maybe it’s the same story with cache and every socket has to be populated in order for it to work? I think iv tried that before, might have been without the TAG ram though. Do Pentiums even support 128k? If the …

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Re: Motherboard not detecting L2 Cache

Posted on 2019-08-22, 05:56

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Tiido wrote: I think the chips need to be in every other socket Just tried it to no avail 😢 Both cachchk at ctcm7 refuse to acknowledge its presence. Did a re-scan of the bios and still found no settings for it?. How much performance am i loosing out by not having cache in a p90 anyway?

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Re: Motherboard not detecting L2 Cache

Posted on 2019-08-22, 05:30

by

by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did you also fill the TAG RAM socket ? The tiny photo only shows 8 sockets but there's a 9th one somewhere too that must be filled. Aha yes, i found a 9nth slot. Didn't seem to make a difference however, cachchk still reported no l2 cache. z1.png Looks like you can have 256k of cache ram. Im trying …

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Re: Motherboard not detecting L2 Cache

Posted on 2019-08-22, 03:03

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Compaq were pretty good with documentation. Have a look on the interweb for a service manual. I found a site with a bunch of Compaq manuals but it seems they uploaded the wrong one for the 7170 :angry: Non of them looked like service manuals anyway, just lists of parts to order. There doesn't seem …

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Motherboard not detecting L2 Cache

Posted on 2019-08-22, 00:02

by

by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Picked up a Compaq Presario 7170. Came with a p90, 20 megs and no cache. I'd like to try to add some cache as i see there appears to be sockets for it, but i can't for the life of me figure out how to get the system to actually detect them. Didn't appear to be any jumpers for them on either side of …

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Re: motherboard has issues with sound-cards / Socket 3 confusion

Posted on 2018-03-23, 22:59

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It could be that the faster CPUs are using a write back cache, and the board isn't configured properly for this. The manual I found had a bunch of CPU type jumpers in addition to the bus speed jumpers - are these all set correctly? What CPUs are you actually using with this board? I'm running a AMD …

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Re: My mobo hates sound cards / Socket 3 confusion

Posted on 2018-03-23, 19:05

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by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This sounds a lot like a bus speed issue I couldn't find an isa-bus speed diagnostics program. Although if anyone knows one, please send it my way :cool: The only options i have for ISA-Bus-Clock are: 1/4 PCLK, 1/3 PCLK, and 7.159MHZ (<--- this makes things worse) Playing around with the only …

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motherboard has issues with sound-cards / bus speed confusion?

Posted on 2018-03-23, 08:08

by

by Yuuker

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I recently aquired a Zida 4DPS / Tomato board and have been having a peculiar issue with it. It seems all my sound cards have been producing garbage noise (or no sound at all) with any cpu going faster then 66mhz. The two sound cards i have on hand are a PAS16-LMSI and a Generic YMF7-OPL3SAX card. …

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Re: My PAS and YMF cards produce garbage noises instead of proper playback.

Posted on 2018-03-01, 03:07

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by Yuuker

in Marvin \ Sound

in Marvin \ Sound

Did you install both a PAS16 and an other sound card at the same time ? That doesn't work too well, I'm afraid. I once tried that with an SB16. The PAS16 uses the AdLib/OPL base address 388h for its native part, too. During init of mvsound.sys, this can cause noise on a generic OPL3 card. A re-init …

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My PAS and YMF cards produce garbage noises instead of proper playback.

Posted on 2018-03-01, 02:25

by

by Yuuker

in Marvin \ Sound

in Marvin \ Sound

I was wondering if anyone had any issues getting these two sound cards cards, a Pro-Audio Spectrum 16 and a YMF7x-opl3sa based card to run on fast cpus (100mhz+). I initially was running a 100mhz Dx4 rig and my PAS16 seemed to be producing really distorted, staticy sounds whenever an effect was …

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Re: Resound OPL3 AdLib sound card just released

Posted on 2018-02-27, 23:03

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by Yuuker

in Marvin \ Sound

in Marvin \ Sound

It should make a great 2nd card to work with an AWE 64 Gold, Disable 388 on the AWE and feed the resound card through the lin-in on the AWE. I’m currently doing this with a SB Pro 2, but the resound should be a cleaner solution. Is it even possible to disable the Adlib-port on Awe2/64 cards? I'l …

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