Re: Found my Viper 770 Ultra! But there's a problem.

Posted on 2022-02-23, 21:46

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Besides the capacitance and voltage rating, the physical dimensions of the capacitor are the last important factor to determine for selecting a suitable replacement. If you have calipers (preferable) or a ruler with millimeters, measure the dimensions as best you can. L456L is production markings …

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Re: ATX12v EPS to 5v Possible?

Posted on 2022-02-23, 06:28

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I designed and built something similar a while ago (producing both 5V and 3.3V from 12V) using 30A fully integrated synchronous regulator ICs. Definitely helped level out the voltages versus plugging the group regulated ATX12V supply directly into the Athlon XP board, but I probably should have went …

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Re: Audio problem with Ensoniq S-2000

Posted on 2022-02-02, 15:58

by

by pancakepuppy

in Marvin \ Sound

in Marvin \ Sound

I'm also betting bad capacitors. I was having the same symptoms on mine. Extremely quiet output, could barely hear it. The caps hadn't leaked out a ton of gunk, but you could see some crust on the solder joints. I replaced the caps (haven't retested it yet, getting a case to put the whole system …

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Re: Happy Days! Obtained my ultimate dream setup from my High School days!

Posted on 2022-01-28, 18:26

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Siiiick, I love a good dual-CPU retro workstation build and 3DLabs + AGP Pro is a winner to me!

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Re: Whats the most rare piece of hardware you own?

Posted on 2022-01-28, 15:59

by

by pancakepuppy

in Milliways

in Milliways

An Appian Rendition II/XE, I've found very little resources for it online so I figure it must be at least a little rare right? Has the Renaissance RVGA daughter board and memory upgrade too

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Re: Lets make new M919 Cache sticks?

Posted on 2022-01-27, 17:42

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sure thing it will do the job without much overclocking. Just checked, those IDT71V124SA12Y chips you put in are rated at 130mA each. That's 1.2A additional current on that LDO regulator. It doesn't seem real tough, could be an issue. 130mA operating at maximum frequency, sure. May be an issue in …

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Re: Lets make new M919 Cache sticks?

Posted on 2022-01-27, 16:43

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looked at your schematics, it's really good that A18 and A19 lines are present in the slot. Makes things much easier. Is there any reason for choosing 3.3V SRAM chips other than general availability? I mean UM8881F is a 5V chip and probably expecting 5V signal levels. Should be fine this way at …

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Re: Lets make new M919 Cache sticks?

Posted on 2022-01-27, 05:11

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

256KB https://retro.darkintel.org/Pix/5x86_256kb_cpuz.JPG 1MB https://retro.darkintel.org/Pix/5x86_1mb_cpuz.JPG CPU-Z doesn't seem to care 256KB https://retro.darkintel.org/Pix/5x86_256kb_cpumark99.JPG 1MB https://retro.darkintel.org/Pix/5x86_1mb_cpumark99.JPG CPUmark 99 increases 10% 256KB https:// …

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Re: Lets make new M919 Cache sticks?

Posted on 2022-01-26, 15:49

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the suggestions! I'll see what kind of results I can get out of these 😀

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Re: Lets make new M919 Cache sticks?

Posted on 2022-01-25, 06:46

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought one of your 256k sticks at the beginning of the month (should have checked this thread first, whoops) and it’s working great so far. A 1MB stick does sound tempting though… What kind of performance increase do you see in Windows with the bump in cache size? I haven't done much performance …

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Re: Compaq Armada M700 ATI Rage Mobility P Driver?

Posted on 2022-01-24, 19:51

by

by pancakepuppy

in Marvin \ Video

in Marvin \ Video

Hi Thank you so much!! I would of never thought about the recovery CD's! These work flawlessly, Quake 2 is now running in OpenGL mode and F22 Lightning 3 runs in Direct3D acceleration mode. It even shows as ATI Rage Mobility P in display options and device manager. Definitely worth adding these to …

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Re: Compaq Armada M700 ATI Rage Mobility P Driver?

Posted on 2022-01-24, 18:45

by

by pancakepuppy

in Marvin \ Video

in Marvin \ Video

I downloaded the Armada M700 Windows 98 quickrestore disk image from archive dot org and pulled out what I think is the driver install files: https://retro.darkintel.org/Drivers/M700_RAGEMOBILITY.zip (It's a little too big to attach here so I'm linking it from my retro file storage site thingy) Can …

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Re: Does anyone recognize this pentium 3 PC from the brand Funai?

Posted on 2022-01-24, 16:53

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My guess on the video card is a Diamond Speedstar A50 (SiS 6326)

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Re: What do you drive?

Posted on 2022-01-24, 02:32

by

by pancakepuppy

in Milliways

in Milliways

A 2003 Dodge Neon (2L, 5 speed) which has provided endless opportunities for becoming a better mechanic, haha. Fixed all the stuff that made the check engine light go on at least.

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Re: Lets make new M919 Cache sticks?

Posted on 2022-01-23, 14:55

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Tandy1000TL wrote on 2022-01-23, 14:44: I'll definitely be interested in one of the modules if available for sale. Let me know when they are ready 😀 WIll do! Still waiting on more PCBs to show up, in the meantime testing continues to go well. Many hours of Super PI and messing around in Windows 95 …

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Re: Strange issues with MS-6524 and an IBM eth card

Posted on 2022-01-23, 03:08

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I have a MSI MS-6524 motherboard with a P4 installed. I have two issues: first one and most annoying is that fans are always spinning at max speed! Right from power on, the cpu and chassis fans are spinning at 100%. CPU one reaches 5300 RPM and since it is also tiny, it's very loud! With …

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Re: My 96-98 build - Pentium 133/233MHZ

Posted on 2022-01-21, 07:15

by

by pancakepuppy

in Marvin \ System Specs

in Marvin \ System Specs

Lovely case, I've never had the pleasure of owning a nice AT case in that style (maybe someday!) Always appreciate an ESS card as well, and I'd probably also have put the Rush in there if I had one on hand. Regarding swapping to a 133MHz CPU, have you tried changing the CPU multiplier jumpers to the …

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Re: Building a new (old) computer.

Posted on 2022-01-20, 03:49

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The date sticker screams Gateway 2000. Its likely the Animga board linked above. I agree with this, my Gateway P5-90 has the same sort of stickers on the motherboard and add-in cards (but with a slightly higher number and 5 months later date) Based on the cache chips on your board and the Intel …

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Re: Lets make new M919 Cache sticks?

Posted on 2022-01-20, 03:21

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

https://retro.darkintel.org/M919/M919_256K_cleanedup.pdf Schematic of the original 256K 5V stick with the cache slot fully labeled (as far as I can make it without a chipset datasheet anyways) and the jumper resistor configurations. So far as I could tell, only 5 pins on the cache slot connector go …

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Re: Lets make new M919 Cache sticks?

Posted on 2022-01-19, 15:58

by

by pancakepuppy

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I read some historical articles that state this motherboard was ultra cheap at that time thus so popular. About making cache module i found only PCB for 256k from jerryt74332 I see that pancakepuppy have a 1Mb, but he doesn't say if it has built it himself or not. I'm not ready to spent hours to …

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