Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Posted on 2020-11-03, 14:58

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

233MMX is a special case cpu, it reuses 1,5x speed as 3,5x in capable motherboards. But i have never heard that 1,5x speed will in turn change to 2,0x speed. This is new. Not all OLD boards actually use multipliers the same way. At one point in time board manufacturers could float or ground a …

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Re: How to configure 486 Mainboard correctly for Am5x86 X5-133 ADZ

Posted on 2020-11-03, 14:53

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

debs3759 wrote on 2020-11-03, 14:05: The manual pages you posted don't show settings for a 5x86. Are you sure it's supported? Others own your board even have bios updates I would ask them and see if they have any ideas MSI MS-4144 ver 2.1 manual and BIOS help

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Re: Non-upgradeable 486?

Posted on 2020-11-03, 01:17

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Older 486 motherboards would require a new crystal oscillator to be upgraded. If I were you and had an original 1989 486dx25 and wanted to upgrade I would drop in a dx2 and call it a day. A DX50 will only work if the chipset and cache are up for that speed, Does the bios support different bus …

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Re: Additional memory for Cirrus Logic CL-GD5428 VLB

Posted on 2020-11-02, 23:45

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

dionb wrote on 2020-11-02, 08:11: Yes, but interlaced, so effectively unusable. Except on every SVGA CRT ever made

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Re: Put a Pentium MMX 233mhz CPU in my DOS machine, still reads as Pentium-S 120mhz. What am I missing?

Posted on 2020-11-02, 20:47

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That board will eventually fry a split rail cpu It needs a VRM to run the pmmx other option is to hack the vio to 3 volts and hope it stays stable. https://www.vogons.org/viewtopic.php?f=46&t=67586&start=60 Also You will need to jumper for 1.5 multiplier if you want 233mhz, you may overload the …

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Re: Nexgen - the 486 killer - WIP

Posted on 2020-11-02, 19:01

by

by rmay635703

in Marvin \ System Specs

in Marvin \ System Specs

I really like the idea of Nexgen VL. It just blows my mind that there's no provision for an FPU on them. Gotta wonder if any of the old coprocessor upgrade cards that fit in an ISA slot would help or make things worse? The ones I saw had up to 4 numeric coprocessors but although they fit in an IBM …

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Re: ATI Radeon R100 and Windows 3.x/NT 3.x?

Posted on 2020-11-02, 18:50

by

by rmay635703

in Marvin \ Video

in Marvin \ Video

dr.zeissler wrote on 2020-11-02, 17:30: Rage 3D pro driver does not work for R7000/R9xx0. […] Show full quote Rage 3D pro driver does not work for R7000/R9xx0. R7000 works with WFW256color-drivers R9xx0 only works with patched vesa-drivers. Doc The r100 is identical to the r7000?

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Re: ATI Radeon R100 and Windows 3.x/NT 3.x?

Posted on 2020-11-02, 15:36

by

by rmay635703

in Marvin \ Video

in Marvin \ Video

I would attempt to use the 3D Rage Pro Windows 3.1 driver You may have to mod a few things to force installation but I’ve had good luck on everything from video cards to printer drivers forcing an older driver from a relatedbut older device as the driver http://vogonsdrivers.com/getfile.php?fileid= …

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Re: Vectra 4/66 cpu upgrade problems

Posted on 2020-11-01, 22:35

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Curious...Is your HP a Vectra VE 4/66 or a Vectra N2 4/66 ? or some other ? It's the vectra ve 4/66 It’s very strange that a 486 made that late in the game can’t detect a DX4 https://www.vogons.org/viewtopic.php?t=30470 I guess your not the only one with problems with this model, oddly there are …

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Re: Can you I.D. This video card ?

Posted on 2020-10-28, 16:14

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What are these connectors for ? Looks like a daughter card connector for AV / video frame capture (but I could be wrong) Info world has reference to an MPEG daughtercard (which is probably rarer than PGA) Wonder if it’s similar https://www.vogons.org/viewtopic.php?t=28133 https://pdos.csail.mit.edu …

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Re: Socket 5 pentium on socket 7 motherboard.

Posted on 2020-10-28, 01:16

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Baoran wrote on 2020-10-28, 00:57: Would you be able to use socket A cooler on socket 7 or are the sockets different sizes? Yes, but They have much greater force to install due to the thinner socket A chip vrs the thick socket 7 It is possible to break the plastic clips. Just be careful

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Re: What display do you use for gaming ?

Posted on 2020-10-26, 02:23

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by rmay635703

in Marvin \ Video

in Marvin \ Video

I have 2 old Sony Trinitrons, honestly the 27” one is my favorite for games though, the ancient 14” is more of a work screen

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Re: Socket 5 pentium on socket 7 motherboard.

Posted on 2020-10-25, 18:52

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

pentiumspeed wrote on 2020-10-25, 02:40: Try running 120 at 133Mhz on 66 fsb. Should work. Cheers, 83x1.5 works just as well if not a little better

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Re: An AdLib-Compatible Card (1986) Older than AdLib (1987)

Posted on 2020-10-25, 04:03

by

by rmay635703

in Marvin \ Sound

in Marvin \ Sound

Did the founder of Adlib have any connection to the University of Delaware? The founder was a Vice Dean in Quebec Lyrtech was highly integrated into Adlib and provided electronic audio processing / design for military and government customers. If I had to guess Lytech may have had a hand with UODs …

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Re: Socket 5 pentium on socket 7 motherboard.

Posted on 2020-10-25, 01:05

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are many advantages of socket 7 or super 7 over Socket 5 (too many to list) But my experience with the MVP3 chipset (ETEK) is quite poor due to drivers and compatibility issues. AGP port on socket 7 has plenty of compatibility issues as well. YMMV https://www.vogons.org/viewtopic.php?t=60505 …

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Re: VL/EISA SMP Pentium (turbocharged)

Posted on 2020-10-23, 20:30

by

by rmay635703

in Marvin \ System Specs

in Marvin \ System Specs

133mhz Pentiums require minimal cooling (never had a 5vOD though) Maybe a closely aimed case fan in line would be enough, I have a $5 harbor freight laser thermometer, could test for hot spots with An “indirect “ fan blowing over the chips The issue with the overdrive cpus is if you don't have a …

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Re: VL/EISA SMP Pentium (turbocharged)

Posted on 2020-10-23, 18:32

by

by rmay635703

in Marvin \ System Specs

in Marvin \ System Specs

133mhz Pentiums require minimal cooling (never had a 5vOD though) Maybe a closely aimed case fan in line would be enough, I have a $5 harbor freight laser thermometer, could test for hot spots with An “indirect “ fan blowing over the chips

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Re: Need help finding childhood Super 7 mobo w/ big Dragonfly on box (ALI Aladdin chipset)

Posted on 2020-10-22, 17:50

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Let’s see Gigabyte usually had clouds with a cartoon dude surfing on the motherboard Amptron had weird solid green, red and white boxes My best guess is some low end PCCHIPS / Elitegroup affiliate, certain offerings from them had weird artwork

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Re: Best CGA & Hercules monochrome games

Posted on 2020-10-18, 21:23

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by rmay635703

in Marvin \ Software

in Marvin \ Software

I had mono CGa so I couldn’t see the magenta;)

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Re: VTech / Laser computers history

Posted on 2020-10-16, 13:06

by

by rmay635703

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Laser wasn’t uncommon in the US at all but oddly every one I’ve seen was XT class (of some sort) Never seen anything locally from the 286+ era Interesting to be reminded of them, some folks were very brand loyal to things.

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