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Hi! i have to know the power switch pinout of a AT power supply

Posted on 2020-10-27, 15:00

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi guys! I have to know the power switch pinout of a AT power supply. I know all of them have a black, white, blue and a brown wires. I need to connect it to a atx case. ATX case has 2 pins for the power switch. I dont want to make a mistake and burn everything. I will use the power supply in my …

Re: I have a new 386 and 2 486 +Pictures :) I did some 3dfx tests too. and I have a few questions too.. Ontrack disc man

Posted on 2020-10-27, 14:57

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

1. could it be a problem to have 10 2gb fat16 partition in dos 6.22 ?? You should be fine. Dos only supports 4 PRIMARY partitions not drives total. Logical drives held in the extended partition your only limited by how many drive letters you have available. BUT 6.22 has trouble with physical disks …

Re: I have a new 386 and 2 486 +Pictures :) I did some 3dfx tests too. and I have a few questions too.. Ontrack disc man

Posted on 2020-10-24, 17:51

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You are indeed going to struggle with more than 4 partitions in DOS 6, which would get you around 8GB of usable space. If you do want to utilize the full 20GB properly, you'd probably be best with DOS 7 & using FAT32 partitions instead. You could install Windows 95B or above on there and just use …

Re: I have a new 386 and 2 486 +Pictures :) I did some 3dfx tests too. and I have a few questions too.. Ontrack disc man

Posted on 2020-10-24, 04:25

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nice D-series! I love that TV, have 2 of them myself both 32" and RGB modded. Like a massive arcade monitor! My sega 32x is svideo modded and sega genesis games looks awesome on that tv in s-video ! :) If anyone know if i'm going to have some problems with dos 6.22 and the 10 fat16 2gb partiton …

Re: I have a new 386 and 2 486 +Pictures :) I did some 3dfx tests too. and I have a few questions too.. Ontrack disc man

Posted on 2020-10-24, 02:16

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Others pictures of my computers and consoles

I have a new 386 and 2 486 +Pictures :) I did some 3dfx tests too. and I have a few questions too.. Ontrack disc manager

Posted on 2020-10-24, 01:49

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi guys ! I just got a DTK 386 dx-33 keen-3336 with a turbo switch that can go as slow as a 286 16 or 386 sx 16. Check my pictures for fun, cool system. ( i will add more later and for the 486 too.) I have 2 new 486 computers too. 3DFX tests results, just for fun: On one of them, the intel 486 dx-66 …

Re: Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-15, 17:02

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi guys! So nobody can confirm at 100% if this Compuadd motherboard has cpu cache or not ? https://www.ebay.ca/itm/AMI-BIOS-Motherboard- … 353.m1438.l2649 Thanks for answer.

Re: Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-13, 18:54

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Its the ebay auction if it can help. The item description talked about a 512kb simm memory x2. is it cpu cache ? i asked him questions, but he didnt know computer stuff at all he told me. https://www.ebay.ca/itm/AMI-BIOS-Motherboard-Intel-i386-VINTAGE/301951040807?ssPageName=STRK%3AMEBIDX%3AIT&_ …

Re: Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-13, 18:28

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The slot on that board is not for a cache board as far as I am aware. It is to add extra RAM via a full length ISA plus the special 32-bit slot. ok thanks a lot! But about my previous post with pictures. The Compuadd motherboard. ( the mega size board with red connector ) Waterbee told me that it …

Re: Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-13, 18:00

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Disable all the i/o and use multi-i/o serial and parallel card instead. Why is something wrong with it? This is Compuadd board, has cache. That red connector 4 pin is for keyboard, Find ground, and 5v then pick which is which are for clock and data pin then make adapter. Disable all the i/o and use …

Re: Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-13, 08:46

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I could be interested in this board too. I see no keyboard connector. But it seems a " keyboard " label is written with a 4 pins connector. How can i connect a keyboard with a 4 pins. i cant find any pinout for this. i dont know if its a ps/2 keyboard or AT standard keyboard connector. Thanks for …

Re: Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-13, 07:43

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't actually have any links. It should be pretty straightforward to build a crystal switcher though. Looking at a datasheet, it looks like you could just wire everything up on a proto board and then have a single jumper block to switch between the crystal oscillators. Pin 3 is the output and …

Re: Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-13, 03:43

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ok i just read some vogons topics about it. I think i got it. Thanks. But if you still have links to that stuff, let me know. Thanks. So i just learned that all 386 cpu have a specific speed in mhz. So a 386 motherboard with a dx-33 cpu will still try to run at 33mhz with a dx-25 cpu ? isnt right ? …

Re: Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-13, 03:05

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Much easier to just change the clock crystal and if you changed the CPU, you would have told also change th clock crystal anyway. If you want a speed changeable 386, then get a 386 Dx-40, some clock crystals for the different speeds you want, wire up an array on a proto board and then wire it up so …

Hi! For my next build, i hesitate between a 386 sx or dx. Intel cpu only.

Posted on 2020-10-13, 00:36

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have several builds ( like 6 or 7 ) already from 486 to Pentium III. But now i want a 386. Right now i use a lot my P2 266mhz because i can change fsb and multiplier to get it working at 133mhz. With setemul its the only build i got 2.51 in speedsys , so its my only system that can run at speed of …

Re: soundblaster 16 backwards compatibility

Posted on 2020-10-08, 21:48

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I compare both sound card with Eye of Beholder II. Both seems to play in mono. I cant see any difference in digital sounds effect or music. ( I configured them with setup.exe )

Re: soundblaster 16 backwards compatibility

Posted on 2020-10-08, 20:34

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Man! I just compare more with Aladdin. The difference is BIG in Stage 1. I won't never play Aladdin with a Sound Blaster 16 anymore because of this topic LoL! Ess1869f all the way for Aladdin! It plays so much better, its play like 3 times better with stereo and higher quality. Edit: Thanks for the …

Re: soundblaster 16 backwards compatibility

Posted on 2020-10-08, 19:57

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I just tested Aladdin with both sound card. With SB16 with sound blaster awe32, the intro music is in mono only, very noticeable, but i have a lot of noise, crack, pop.. and its the only game i notice noise, crack and pop.. In SB16 setting Jazz play without noise like all others games i tried. With …

Re: soundblaster 16 backwards compatibility

Posted on 2020-10-08, 19:27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've mentioned this elsewhere, but it might be useful for people who want to test the SBPro stereo capabilities of their sound card. Aladdin is one of those games where choosing the SB16/AWE32 as your sound device in setup won't produce stereo music. On the other hand, choosing SBPro does produce …

Re: I'm happy i just got a fic 486-pvt-io with 486 dx4-75mhz, but i cant update bios

Posted on 2020-09-30, 14:56

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I purchased a roll of 10 "HYB514171BJ-60 256k x 16-Bit Dynamic RAM SOJ40" and upgraded all of my SOJ40 socketed video cards, including a Cirrus 5429 VLB card. It was easy. Just lined up the 1 pins, popped in the chips and it worked. Not sure it was particularly useful. The slow ramdacs of that …

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