Re: Custom / Professionally made, PC/104 Sound Card, ESS ES1869 + Dream SAM2695.

Posted on 2021-03-18, 09:43

by

by galanopu

in Marvin \ Sound

in Marvin \ Sound

If I make this the standard size with both connectors... then this would be a problem with boards that only have the PC/104 and not the 120pin one. It will collide with stuff under the 120pin connector. Now this area is open. If your M/B has an 120pin connector you just need to put 2 standoffs there …

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Re: Custom / Professionally made, PC/104 Sound Card, ESS ES1869 + Dream SAM2695.

Posted on 2021-03-17, 22:41

by

by galanopu

in Marvin \ Sound

in Marvin \ Sound

Thnx! No Just standard OP-AMP based. I followed this article here: http://nwavguy.blogspot.com/2011/08/op-amp-measurements.html And selected one of the NJR/JRCs. Good performance and not too expensive. Designed the circuit myself with simulations and now I am fine tuning this.

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Re: Custom / Professionally made, PC/104 Sound Card, ESS ES1869 + Dream SAM2695.

Posted on 2021-03-15, 15:32

by

by galanopu

in Marvin \ Sound

in Marvin \ Sound

Interesting project. BTW, were you able to get the ES1869F chip to work in WSS mode in DOS games which support that setup option? Specifically, I'm asking about games like Space Quest V, Aladdin and Tyrian. In my experience, ESS cards are not detected as WSS devices by DOS games. Maybe it was a …

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Custom / Professionally made, PC/104 Sound Card, ESS ES1869 + Dream SAM2695.

Posted on 2021-03-15, 13:40

by

by galanopu

in Marvin \ Sound

in Marvin \ Sound

This time I have for you something a bit more complex. I designed this this PC/104 Sound Card in an professional way. Specs: - ESS ES1869F (SB, SBp, WSS, ESFM) - SAM2695 MIDI Synthesizer (GM + MT-32 Compatibility) - Game Port - CD Audio in - PC Speaker in - Modern High quality Power Amplifier Video …

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Re: Tillamook 266MHz and working L2 cache?

Posted on 2021-03-11, 09:13

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank for the MODs! Well, I did some benchmarks of the Tillamook. Overclocked to 420Mhz (3.5 x 120). I used my Asus P5A v1.06 with 1MB of cache. Compared this to the 512k model and to a K6-2. Here is Video: https://www.youtube.com/watch?v=fqB4yCssUCM

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Re: PC Chips M326 V5.2 motherboard adventures: testing, repairs, and other things

Posted on 2021-03-04, 09:58

by

by galanopu

in Marvin \ System Specs

in Marvin \ System Specs

Funny enough, this exact setup M326 v5.2 + TVGA8900D-R is the only 386 system I have... and I did a review video a few days ago. I think it is a good combo. https://www.youtube.com/watch?v=jBaq7MY-A-U I am sorry I do not have any idea on what your problem is 🙁

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Re: Native PS/2 mouse implementation for 386/486 boards using the keyboard controller

Posted on 2021-03-04, 09:44

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Great work guys!! I might try this mod in the future too. I just reviewed one of these M326 boards.

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Re: Asus P5A v1.06 - ALi Aladdin V with 1MB of Cache! (Full Review / Optimization Guide)

Posted on 2021-03-03, 20:59

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I somewhat agree here. I did not call socket 7 the best of the best. There is no best of the best. It always depends on the games you want to run. My setup beats all Pentium II and some PIII. But yes, a slot1 / s370 is a very good option especially for more demanding stuff. I have a lot of these, if …

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Re: Asus P5A v1.06 - ALi Aladdin V with 1MB of Cache! (Full Review / Optimization Guide)

Posted on 2021-03-03, 19:16

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As I said... I have many motherboards, I will defiantly contribute... but not the P5A 1MB :p (this is not simple at all when you are -1000e on this).

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Re: Asus P5A v1.06 - ALi Aladdin V with 1MB of Cache! (Full Review / Optimization Guide)

Posted on 2021-03-03, 18:45

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Wow great work with this site. Bookmarked. I have a huge M/B collection. If I have something not in the list I will send you. I have more than one P5A with 1MB cache. I have done more that 1 hour of video on this M/B. You can get some pictures from there. Visually it is not that different, only the …

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Re: Asus P5A v1.06 - ALi Aladdin V with 1MB of Cache! (Full Review / Optimization Guide)

Posted on 2021-03-03, 07:46

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some of you were asking me about the price of this 1MB Motherboard. It is impossible to put a price to something that it is typically not sold. I will let the market decide the correct price. So I just put one for sale in Ebay... In general I do not like Ebay and their high fees. But Yea I did this …

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Re: Original Hardware: Dream MIDI synthesizer with Gameport interface.

Posted on 2021-03-02, 02:20

by

by galanopu

in Marvin \ Sound

in Marvin \ Sound

I like this idea a lot. How much do you plan to sell them for? You could probably replace the standoffs on the max's connector with some flush head screws so they are still usable. Thanks, I have already ordered the right connectors and I will have them in less that 20days, along with some screws …

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Original Hardware: Dream MIDI synthesizer with Gameport interface.

Posted on 2021-02-27, 10:02

by

by galanopu

in Marvin \ Sound

in Marvin \ Sound

Two variations of this G_Dream and G_Dream_Max. These are Dream SAM2695 based MIDI synthesizers with Gameport interface. Dream SAM2695 is the chip used in the very popular Dreamblaster S2. So my synthesizer boards have similar performance. The main difference is the interface change from the …

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Re: Original Hardware: PCI clock measuring device.

Posted on 2021-02-25, 09:02

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

These 20 x PCI_clk v1.01 got shipped to me today. Gold finished, beveled, and professionally assembled. I will have them in ~20 days from now.

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Re: Custom made, 50ns, FPM, Simm 30, memory modules with parity.

Posted on 2021-02-24, 22:22

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes this is true! I did my research earier today. All the 1Mx1 chips I checked were organised differently (9 x 11 bits), with sorter refresh cycles (512). So unless the M/B refreshes up to the 10th bit this will not work with 1Mx4 or 1Mx8 chips (that are 10 x 10 bits). Newer motherboards also …

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Re: Custom made, 50ns, FPM, Simm 30, memory modules with parity.

Posted on 2021-02-24, 08:38

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Form what I have read... some 3 chip versions have problems with some very old M/B. But the problem is usually with the parity function and this makes sense as the 3rd chip is different and has marginally different timings. Now from an electrical point of view... 8x1Mx1 or 2x1Mx4... I do not think …

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Re: Custom made, 50ns, FPM, Simm 30, memory modules with parity.

Posted on 2021-02-23, 18:50

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Good news guys. I found stock on some sick 40ns FPM 5v 1Mb chips. So in about 1 month from now... if everything goes well... expect some 1MB simm-30 40ns FPM modules from me. The drawback is that I will have to skip the parity chip this time :/ I know this is a problem with some boards... but well, …

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Re: Custom made, 50ns, FPM, Simm 30, memory modules with parity.

Posted on 2021-02-21, 18:17

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As I said in the video, for now I only have a few 4x4MB kits. To be exact 5 of them. I want to keep 2 for myself. So 3 are available. I will only do one kit per person for now and ideally to people that can really use them. I would probably make more in the end, but the stock for these chips is …

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Re: Custom made, 50ns, FPM, Simm 30, memory modules with parity.

Posted on 2021-02-21, 15:47

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maxtherabbit wrote on 2021-02-21, 15:44: do you happen to know if these NOS infinion 50ns parts are available in a 1Mx1 organization? No idea, I have to research this. Even these 4Mx1 and 4Mx4 were rely hard to find.

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Re: Custom made, 50ns, FPM, Simm 30, memory modules with parity.

Posted on 2021-02-21, 15:45

by

by galanopu

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

50ns modules would be really helpful for people like myself building hotrod 286 systems. At 0-ws, 25MHz is really pushing the limit of 60ns modules (I have 2 sticks out of a dozen or so that run stably enough to get benchmark data at that speed). I'm not sure anyone has been able to achieve 30MHz …

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