Re: Troubleshooting Voodoo1 on a pure DOS Pentium1

Posted on 2017-03-08, 07:22

by

by Deksor

in Marvin \ Video

in Marvin \ Video

To me it sounds like an issue with the PCI interface, maybe down to a chipset compatibility issue (try to find if someone else with a VX chipset has gotten Voodoo1 Obsidian working). Are there any other PCI-related settings in the BIOS such as burst mode, timings, wait states, etc? Maybe jumper …

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Re: Recommend a PCI Sound Card for DOS

Posted on 2017-03-06, 10:44

by

by Deksor

in Marvin \ Sound

in Marvin \ Sound

I got pinball fantasies working with sound on my pentium 2 with the YMF724 using the SB_link. The only issue was that the sound had a noise, but that was due to the cpu's speed. Desactivating the caches fixed it I didn't play with it a lot, but for all that time since I made it work correctly under …

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Re: HP Vectra 486 33VL question(s)

Posted on 2017-03-06, 09:11

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just regular28 pins Sram chips

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Re: HP Vectra 486 33VL question(s)

Posted on 2017-03-06, 09:00

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hey I've got the exact same PC ! As compgeke said, the straight rows ones are sockets for l2 cache. You can put up to 128KB of cache in there. The ram goes up to 32MB The video ram type you can put in there is called "ZIP" Ram. This gives you 1MB of vram instead of 512KB when installed. You can put …

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Re: PChips m915i looking for a bios which doesn't fake the cache

Posted on 2017-03-05, 23:05

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Speedsys made a difference between wt and wb on my Aopen AP43 board and there it didn't change anything, so I don't think that this fonction does anything unfortunately. I would have put dip-32 sockets if I had some, but I don't ^^ I'm not going to use this board with maxed out settings, I'm going …

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Re: PChips m915i looking for a bios which doesn't fake the cache

Posted on 2017-03-05, 21:37

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There's just a small flaw to the bios but that's note a huge deal : the write-through/write-back toggle doesn't seem to have any effects unfortunately. I've not tried the write-back setting for the internal cache because I don't own any 486 that supports wb internal cache

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Re: ATC-5030 no POST. Now fixed :D

Posted on 2017-03-05, 19:58

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm running the 6x86MX ... but in fact I don't really know at what speed it is running. Though like I said, if it was running at 83.3MHz fsb back then, it might have hurted a little bit the chipset. But at least the board is still usable if you take an IDE controller card, so it's not a huge deal …

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Re: PChips m915i looking for a bios which doesn't fake the cache

Posted on 2017-03-05, 19:38

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

After ~2 hours of work of moving sockets to one motherboard to another (I previously removed the fake chips a long time ago), here's the finished product http://i.imgur.com/lSDbnYFl.jpg But the question is ... will it work ? Well ... here's speedsys's answer : http://i.imgur.com/2AqA1OFl.jpg OH MY …

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Re: ATC-5030 no POST. Now fixed :D

Posted on 2017-03-05, 14:06

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Some hdds that I tried actually had an installation of windows on them. Real men use the network to boot and setup stuff :lol: (though all my 3com cards with a boot rom are used in systems, so I can't do that with a test rig. Speaking of network boot I think I should translate my tutorial video on …

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Re: ATC-5030 no POST. Now fixed :D

Posted on 2017-03-05, 10:10

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hm now that I'm trying to install windows, something odd is happening :( The hdd is detected correctly through the bios and fdisk sees it, but when I create a partition and that I reboot, the partition is gone ... I tried with 3 hdds and 2 ide cables and it still does the same thing. On the other …

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Re: ATC-5030 no POST

Posted on 2017-03-04, 14:29

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I don't think it was bricked by the previous owner because like I said when I tried to reflash the original bios chip, uniflash couldn't determine it's type so the bios chip is probably just dead. I don't care for that little chip, they are not as hard to find as a working pentium board with better …

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Re: ATC-5030 no POST

Posted on 2017-03-04, 13:34

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So today I finaly decided to reflash the BIOS, and this happened : 2017-03-04 14.23.45.jpg IT WORKS !!!! I knew that this could fix boards, but I never thought I would have a board with a dead bios. I tried not really believing that this would fix it, but apparently it worked ! I'm not cursed …

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Re: PChips m915i looking for a bios which doesn't fake the cache

Posted on 2017-03-04, 12:18

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I see. Though I didn't do the mod at the moment, like I said, I only removed the fake cache chips. Now I need to salvage the sockets and the chips from another board

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Re: PChips m915i looking for a bios which doesn't fake the cache

Posted on 2017-03-04, 08:17

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The jumpers on the board are se to 256k of cache and if I enable the cache in the bios, it says "256k cache installed" even though obviously, nothing at all is installed. I don't think it's able to autodetect the cache and enable it, but I might be wrong

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Re: PChips m915i looking for a bios which doesn't fake the cache

Posted on 2017-03-03, 22:11

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I salvaged several EPROMS from dead socket 7 boards so this isn't a real big deal. Though are they electrically compatible ? My EPROMS chips have 4 more pins than the original PROM but the socket has some extra pins too I'll try that but I'm not sure if that would work. If I enable the cache in the …

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

Posted on 2017-03-03, 08:24

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

- I upgraded the driver for the HDD controller under Windows 95, it was noticeably missing and using a generic driver, so I put the Winbond VL-EIDE driver on there found through much web surfing, Windows 95's load time has gone down considerably (<20 seconds), transferring files over the network is …

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PChips m915i looking for a bios which doesn't fake the cache

Posted on 2017-03-03, 00:18

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've got this board since quite some time, and I always wondered if I couldn't make something better from this crappy board. Some of the m915 actually had real L2 cache, but many other didn't. But unlike the m919, the traces don't go in circles, they actually go to the chipset, and I measured and …

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Re: Adventures In $0.99 Computer Lot Buying

Posted on 2017-03-02, 06:32

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by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I hate to see old pcs in a dumpser which due to some idiotic law is forbidden to get ... I mean I know that they must make money out of these, but then, why don't they sell them in fonction of their weight ? They are talking about having a more ecological world, but our way of "recycling" them is so …

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Re: Adventures In $0.99 Computer Lot Buying

Posted on 2017-03-01, 20:41

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by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well I've got two (maybe three ? I don't know actually if the third works or not) YMF7x4 cards which features the awesome XG synth ^^ but unfortunately that synth only works under windows, and also (still in windows), I can't play duke 3D with the sound effects and speech. Adding a creative/ …

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Re: Adventures In $0.99 Computer Lot Buying

Posted on 2017-03-01, 20:13

by

by Deksor

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah the AWE64 seems good ... but it doesn't feature the OPL3 which is a problem for me ... Though combined with another sound card that features that chip it must not be a big flaw. (at least that's what I'm planning to do)

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