Re: Bought these (retro) hardware today

Posted on Yesterday, 00:16

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Also arrived today. Micronics-branded dual socket 5 / 430NX. IBM part made by Micronics in full-AT form factor. https://dependency-injection.com/wp-content/uploads/2020/09/DSC_7996-scaled.jpeg I notice the board has two Intel Overdrives. Didn't Intel disable SMP in their overdrives? Or was that …

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Re: Bought these (retro) hardware today

Posted on 2020-09-21, 07:12

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Also arrived today. Micronics-branded dual socket 5 / 430NX. IBM part made by Micronics in full-AT form factor. https://dependency-injection.com/wp-content/uploads/2020/09/DSC_7996-scaled.jpeg I notice the board has two Intel Overdrives. Didn't Intel disable SMP in their overdrives? Or was that …

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Re: 3 (+3 more) retro battle stations

Posted on 2020-09-20, 21:42

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

Depends on if you are using Windows or only DOS. Also depends on if you are using the Adaptec 154X or the 152X. I suggest reading the first section of this: Register settings for various CPUs

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Re: 3 (+3 more) retro battle stations

Posted on 2020-09-20, 08:54

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

I've run the SXL2-50 at 55 Mhz on quite a few 386 motherboards with 32 MB of RAM without issue. I have the ULSI DX2-66 FPU, so the FPU limitation isn't so much of an issue. It's important that you set the registers up properly for L1 and L2 cache when working with an SXL.

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Re: 3 (+3 more) retro battle stations

Posted on 2020-09-19, 22:44

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

You should be able to get 55 MHz out of the sxl2 . Fpu fully stable at this speed is tough though. Even an IIT x2 50 when pressed will fail

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Re: Gainbery MAXimizer Cyrix 5x86-133

Posted on 2020-09-11, 14:41

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Same here. So I was pretty excited to find a Cyrix QFP on a Gainbery.

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Re: Batman's Revenge socket 4 motherboard - need manual

Posted on 2020-09-11, 05:32

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looks like the same board as mine. Are there more variations, besides those with and without the 5.27 V VRM? I like how Intel went to the level of detail to remove the pins from the RTC socket which aren't needed.

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Re: Modern graphics on a 486

Posted on 2020-09-11, 05:27

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nope, it's a socket 3. For some people, that's all that matters. For others, the CPU must be 486 architecture. For some, a 486 can't have PCI. Some only want period correct, etc... Whatever floats you boat man.

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Re: Modern graphics on a 486

Posted on 2020-09-11, 03:51

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I used to have my MB-8433UUD system setup with a POD-100 and a GF2MX. It ran opengl pretty well considering it is a socket 3 board.

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Re: Improving Quake performance on POD83.

Posted on 2020-09-10, 17:08

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by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Basically you won't get the exact same result on the same config if you run the benchmark a second time. Or a third time. My benchmarks have been quite consistent. Straying only 0.1 FPS running them back to back. Mine are consistent as well. 25.9 fps running the benchmark manually and 23.3 fps with …

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Re: 3 (+3 more) retro battle stations

Posted on 2020-09-07, 09:50

by

by feipoa

in Marvin \ System Specs

in Marvin \ System Specs

@ekb Thanks for the link. Interesting. Do you know if sellers ship internationally ? ------------------------------ Biostar MB-1333C-CH/1340C-CH I usually avoid wide format early 386 motherboards. They are too slow and "rigid" - pain in the bottom to deal with. This one is no different. Been …

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Re: Improving Quake performance on POD83.

Posted on 2020-09-06, 10:47

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I ran the Biostar with only 256K double-banked and the score drops from 25.9 (512K double-banked) to 25.1 fps.

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Re: Improving Quake performance on POD83.

Posted on 2020-09-06, 10:13

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The Serpent Rider wrote on 2020-09-05, 16:08: After Phils pack, there has been more uncertainty in what people are using Didn't noticed any difference in results. See attached. 23.3 fps w/Phil vs. 25.9 fps run direct. Filename Phils_vs_direct_2.jpg File size 195.27 KiB Views 85 views Filename Phils …

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Re: Is a Voodoo 2 worth the cost

Posted on 2020-09-05, 12:32

by

by feipoa

in Marvin \ Video

in Marvin \ Video

a Voodoo 3 is nice if you want to play glide games but it doesn't have nearly the same charme that a Voodoo 2 has at least for me, Voodoo 4 and 5 is not that special anymore imho apart from being "rare and expensive" and being able to put a 3Dfx badge on your PC as games in that time weren't really …

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Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)

Posted on 2020-09-04, 23:10

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That is certainly interesting - you bought the SRAM tester and they halved the price for you! It is too bad that they are gone for good. Could you take a photo of the re-marked Chinese SRAMs that actually conform to their datarate? It might put people at ease.

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Re: Improving Quake performance on POD83.

Posted on 2020-09-04, 23:06

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The cards performed about the same. I think the CPU is holding back the scores. I only tested what I have in my drawer. There's some others that I have boxed or in systems that would be nice to add to the list as well, but it is too much work for me to dig them out. I did notice that on this board, …

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Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)

Posted on 2020-09-04, 21:00

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I admittedly didn't read all 18 pages of this thread, so apologies if this was already answered -- Could you run other Socket 7 processors in this system like a K5 or K6? When using a split-rail VRM interposer, I am pleased to report that a AMD K6-III-450AFX chip will function properly on this …

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Re: Cyrix 5x86 Register Enhancements Revealed

Posted on 2020-09-04, 12:41

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

From my experience with "It's ST" 5x86 chips, they are the worst overclockers of the 3 (IBM/Cyrix/ST). Roamer has it that their requirements to qualify chips were rather low. I've tried to overclock mine and it failed immediately.

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Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)

Posted on 2020-09-04, 12:26

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can your RAMCHECK LX test the response time of DRAM and SRAM? It would be interesting to see what drift there is as these modules get up in age. Will a 60 ns stick of EDO memory still guarantee a 60 ns response 30 years later? The ability to reprogram SPD could be useful. A lot of memory …

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Re: NEC Proserva V Plus (dual socket 7 system) (have a lead on multiple of these)

Posted on 2020-09-04, 10:09

by

by feipoa

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

RAMCHECK - what is this? OK, good to know about the 1.5x setting. It is too bad the PT6501As' are fixed 3.3 V regulators. But perhaps there is still a voltage set resistor in there which can be changed to achieve 2.8 V output. socket 5/7 interposers aren't expensive if you have patience. $25-$50 …

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