Re: 386DX40 build

Posted on 2011-01-19, 18:50

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by retro games 100

in Marvin \ System Specs

in Marvin \ System Specs

udam_u: I haven't tested the Cirrus Logic ISA VGA card in a 486 system yet. That's a good idea. I will try to do that soon. dirkmirk: The CF device is really old and crappy! It's a 128MB Fuji model. If you attach it to a 486 mobo for example, you have to select "normal" and not LBA, because it's so …

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Re: Complete newbie advice on ISA video cards required please

Posted on 2011-01-19, 18:36

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by retro games 100

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

To answer the issue regarding the ATI card + DOS usage: I ran PcpBench with the ATI "co-processor helper" card installed, and it runs OK, and gives me a score. OK, the score is bad, but nevertheless, it runs. I then remove the ATI card, leaving just a Cirrus Logic VGA card installed. I rerun …

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Re: Complete newbie advice on ISA video cards required please

Posted on 2011-01-19, 12:56

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by retro games 100

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, you're right. 10 MHz is the best overclock to go for. After all, there's not much point in overclocking a 386. It's better to use a 486 or Pentium for that. I was just messing about. Re: 8514A + Win 3.x. That's a good idea. I might install Win 3.x one day, and check that out!

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Re: 386DX40 build

Posted on 2011-01-19, 10:31

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by retro games 100

in Marvin \ System Specs

in Marvin \ System Specs

Markk wrote: Today my 386/40 from that chinese guy arrived. It is a cut piece from a board, indeed. But I guess I'm a lucky one. Mine has a windows logo and some jumber settings left on the board.... :p 🤣 Yeah, some of mine had "extra goodies" on board - one hack-sawed piece had a capacitor on it.

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Re: 386DX40 build

Posted on 2011-01-19, 08:49

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in Marvin \ System Specs

in Marvin \ System Specs

Sounds like I need some faster cache! I've got a box somewhere, with some old cache chips in it. I'll see if I can find it... I got that 100 MHz osci from a place called Farnell. Tetrium, you're in luck. They have a NL website: http://nl.farnell.com/. They also sell 80 MHz oscis, if you ever need a …

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Re: 386DX40 build

Posted on 2011-01-19, 07:35

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by retro games 100

in Marvin \ System Specs

in Marvin \ System Specs

Sounds like I need some faster cache! I've got a box somewhere, with some old cache chips in it. I'll see if I can find it... I got that 100 MHz osci from a place called Farnell. Tetrium, you're in luck. They have a NL website: http://nl.farnell.com/. They also sell 80 MHz oscis, if you ever need a …

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Re: 386DX40 build

Posted on 2011-01-18, 23:28

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in Marvin \ System Specs

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That's great! If I may ask, what is the speed of your simms, and also your cache chips? The SIMMs are: bank 0 = 4 lots of 1MB 60ns, and bank 1 = 4 lots of 1MB 70ns. I hope to be able to replace the 4x 70ns 1MB SIMMs with 4x 60ns 1MB SIMMs, when they arrive. I wonder if it will make any difference? …

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Re: 386DX40 build

Posted on 2011-01-18, 22:34

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in Marvin \ System Specs

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Oh yes! I've just got 18.5 in 3DBench. I'm using the 100 MHz osci, and the max bus speed of 20 MHz. It all works! When the multi IO controller detects the HDD at the BIOS POST stage, it appears to hang. What I did was just wait. I waited for about 40 seconds, and then the IO controller simply " …

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Re: 386DX40 build

Posted on 2011-01-18, 22:03

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by retro games 100

in Marvin \ System Specs

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You have got overclocker soul. ^^ Did you test any game with CPU running at 50MHz? I tried to run Quake. Hehe. It didn't run. Perhaps it requires a 486 or faster processor? I ran doom -timedemo demo3. That works, at 50 MHz CPU speed, with the bus speed set to 13.3 MHz. I get 2134 gametics / 10209 …

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Re: Complete newbie advice on ISA video cards required please

Posted on 2011-01-18, 21:50

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by retro games 100

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It works! Using a 386DX-40 and a bus speed of 13.3, I get a magnificently bad score of 1.9 using PcpBench, with its default mode 100. Ah...retro junk - even when I get bad scores, it feels good! 😁

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Re: 386DX40 build

Posted on 2011-01-18, 21:05

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by retro games 100

in Marvin \ System Specs

in Marvin \ System Specs

Markk, congratulations on having an awesome system! :cool: :happyhappy: If I use a 100 MHz osci, I can't boot using a 20 MHz bus speed. I can boot at this bus speed, if I use an 80 MHz osci. However, I've got to put the BIOS timings on "auto", which I think cancel out any fine tuning. Here is …

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Re: 386DX40 build

Posted on 2011-01-18, 20:38

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by retro games 100

in Marvin \ System Specs

in Marvin \ System Specs

Just finishing off testing, using the 100 MHz osci. The BIOS timings needed to be set to "auto". I couldn't set them manually, because the mobo would not POST. This only happens if I use a 100 MHz osci.

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Re: 386DX40 build

Posted on 2011-01-18, 18:48

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in Marvin \ System Specs

in Marvin \ System Specs

I ran Landmark speed test version 6, and this is what I get. Is it any good?

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Re: 386DX40 build

Posted on 2011-01-18, 12:31

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by retro games 100

in Marvin \ System Specs

in Marvin \ System Specs

I have done some more testing with this mobo. The 100 MHz osci I ordered has arrived, and it works. The 386DX-40 chip now runs at 50MHz. I spent about 30 minutes messing about with everything, and I can get the mobo to behave sensibly at a bus speed of 13.3 MHz, but not at the very highest setting …

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Re: Soundcards vs onboard audio for games

Posted on 2011-01-18, 11:54

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in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

keropi wrote: good riddance to IDE Blasphemy! 😳 Burn the heretic! 😉

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Re: Soundcards vs onboard audio for games

Posted on 2011-01-18, 11:37

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in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Tetrium wrote: It's the end I tell ya...TEH END!!!11 🤣

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Re: how hard to overclock a taulatin celeron chip?

Posted on 2011-01-18, 08:31

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in Marvin \ General Old Hardware

These comments are largely off-topic, because @RT is using socket 370 mobos. However, some of this info may be vaguely useful. I did some overclocking experiments with various socket 370 chips. However, they were done on a slot 1 mobo, with an adapter. Here's a summary of the results - cop: …

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Re: 386DX40 build

Posted on 2011-01-17, 13:35

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by retro games 100

in Marvin \ System Specs

in Marvin \ System Specs

I'm not sure if you can buy a variable osci. However, I've just ordered a 100 MHz osci. If it works, I might have the fastest 386 on the planet. Hehe! BTW, I read Vogons user Markk's post here . He mentions using a diode, when using an external battery. Markk, should I use one for my 386 mobo? If …

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Re: 386DX40 build

Posted on 2011-01-15, 23:06

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I still haven't had the time to remove the old barrel battery lol. You don't need to! :happy: At least, not immediately. You can attach an external battery to the 4-pin battery header, on the mobo. Red wire goes on pin 1, black on pin 4. If the wire isn't long enough, and plastic covers too much of …

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Re: 386DX40 build

Posted on 2011-01-15, 20:32

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I ran some 3DBench tests on the 386 mobo. For every test run, I used the same CPU, which is an AMD 386DX-40. I adjusted settings on the mobo, in order to produce different 3DBench scores. These adjustments can be seen in the first 4 columns in the table. The 5th column contains the results. I …

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