Re: What in the world is up with this chip on this Unisys 486 board? Pic attached...

Posted on Today, 01:41

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Keyboard controller IC (microcontroller), with tiny 8 bit cpu and tiny memory, some ROM on one die. This modifications I see this often with IBM produced boards as well. Cheers,

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Re: My first "retro" PC - overkill Win98/XP build

Posted on Yesterday, 23:00

by

by pentiumspeed

in Marvin \ System Specs

in Marvin \ System Specs

I feel that 775 is more suitable than 478 for reasons that it supports duo core, which could speed up when running some big software such as Eclipse, JDK,Visual Studio 2008, 3DS MAX, etc. Multithread has been applied to these apps. For video card, it seems that Geforece7 with AGP slot is your …

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Re: A new covid lockdown project - help if you can

Posted on Yesterday, 15:25

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes go ahead, that is called underclocking and another benefit is cooler. Take care with the socket. That socket's slots for tool to pull CPU out cracks easily if using levering method to pry out the CPU. Cheers,

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Re: TNT2 M64 on Super 7 system - Worth it?

Posted on Yesterday, 01:39

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Is GF2 is a bus AGP? FYI: Many PCI video cards especially TNT2, GF2 and later and some other will not initialize on some boards, newer the better. TX and PII/PIII, socket 370 chipset is best for these and no longer CPU limited too. Cheers,

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Re: Guidance for Windows 98/Windows XP Gaming Build

Posted on 2020-04-06, 02:02

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

98se likes AGP based computers best and 512MB max for max safety and reliability , while XP works best with late AGP and PCIe boards. But problem is AGP with high performance cards is expensive to meet demands of newer games that goes with XP territory easier said is PCIe mothrboards best fit for XP …

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Re: Commodore 286-16 / Memory

Posted on 2020-04-05, 20:11

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The setup says to hit F2 key. Also please post pictures of memory modules that you could not use on this 286? Cheers,

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Re: Commodore 286-16 / Memory

Posted on 2020-04-05, 20:10

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The setup says to hit F2 key. Cheers,

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Re: MSI 815E Pro Photo needed

Posted on 2020-04-05, 20:08

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

No, first picture is one you need to fill in missing components. The last picture is does not match what your motherboard has.

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Re: Help me build the Ultimate DOS gaming computer.

Posted on 2020-04-05, 19:57

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Which Pentium 100 that can go to 1X multiplier? I'd love to play with socket 5 or 7 at 1x using a Pentium CPU. Cheers,

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Re: Bought these (retro) hardware today

Posted on 2020-04-05, 19:50

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Keep 75, it will might go to 90 and 100. For 133 thru 200 you need a unlocked Pentium 200. Cheers,

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Re: White traces on my AWE32 - should I worry?

Posted on 2020-04-05, 04:40

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just dried up flux that couldn't be removed easily except manual gentle scraping off then cleaned with alcohol. Happens all the time with some poor flux. Cheers,

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Re: Bought these (retro) hardware today

Posted on 2020-04-04, 01:25

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

while RAM chips are normally quite reliable. Not in my experience. True. Years ago, I had a PCI Tnesg ET4000w32i/p with one bit bad outside of typical memory requirement on windows 98se. I had extremely long bookmarks in firefox. One day I happened to scroll all the way toward bottom and was …

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Re: Bought these (retro) hardware today

Posted on 2020-04-03, 17:32

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have same heatsink, they are the best for socket 462 with four hole mounting. Not all motherboard have these holes. But there are clip on heatsinks with copper forged in the base.

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Re: SIPP Memory Orientation [SOLVED]

Posted on 2020-04-03, 15:32

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Note the outlined SIPP silkscreen print on the motherboard, one end is boxed around the pin 1 of this SIPP connector. Cheers,

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Re: Newly made ISA CL-GD5434

Posted on 2020-04-03, 01:30

by

by pentiumspeed

in Marvin \ Video

in Marvin \ Video

Oh no yes! I'd love one. Buy the PCI CL5434 and donate it to the card. Cheers,

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Re: MFM-Harddrive spins up and down on power up

Posted on 2020-04-03, 01:27

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Dropped hard drives is junk regardless of brands. Not what you are trying to implying at. Cheers,

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Re: MFM-Harddrive spins up and down on power up

Posted on 2020-04-03, 00:09

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Back then I purchased Hitachi 320GB SATA based on 2 platter, 4 head 500GB chassis, two hard drives and they did have ramp parking. still good after 8 years of full time use. Now stored. Cheers,

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Re: Genius Peripherals

Posted on 2020-04-02, 23:21

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Had Genius mouse once. Okay mouse wedge back in the day that only one of many mice that worked on the odd-ball PC Zenith called that thing the "Eazy PC". Cheers,

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Re: What retro activity did you get up to today?

Posted on 2020-04-02, 02:51

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

CR-563-B of this type and other like it that use same interface uses a toy-like motor DC motor that has commutator gaps (trenchs) get plugged with conductive dirt and can make motor spin very poorly or fail to spin reliably, skips. This is because of the motor driver chip is high impedance which …

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Re: MFM-Harddrive spins up and down on power up

Posted on 2020-04-02, 01:55

by

by pentiumspeed

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looong ago, when IBM/Hitachi announced that around Deskstar 7K250 series. Other brands came on with this concept later on. Cheers,

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