Re: Alternatives for TAG RAM chips

Posted on 2022-09-29, 02:12

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For a 386 or 486 ISA/VLB board 20nS tag is just fine for 33Mhz FSB, from my experience a 15 nS would be better for a 40Mhz FSB if you have options to tweak the cache/memory timings...just an opinion ;p What speed are you current main cache chips ?

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Re: Vectra VL400 Pentium III 866Mhz

Posted on 2022-09-29, 02:01

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That motherboard was used in a few different configurations. Desktop w/o expansion, Desktop with Riser, Mini/mid tower with ISA expansion. If you do not have the manual it is linked below, pages 9 to 13 in the Tech show the diff configs. Should be an Intel 815 chipset and it should support soc 370 …

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Re: Looking for Panasonic LF-1500JDN (PD/CD) pcmcia interface drivers for 98se or XP

Posted on 2022-09-28, 21:53

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Nice ! That is about the same as this: http://www.storagedrivers.com/drivers/126/126210.htm If I would have known could have pointed to Deksors archive, it has the storage drivers file. It has the same readme.txt in Japanese. Attached below for comparison...

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Re: How do you store your keyboards?

Posted on 2022-09-28, 02:09

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As long as you do not do this think you are OK: https://www.alamy.com/stock-photo-stack-of-ke … p-57159640.html 🤣

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Re: problems restoring a keyboard

Posted on 2022-09-28, 02:03

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi Vogons! The keyboard has some scratches, I would like to remove them. How can I do it? Thanks very much! Those are not "scratches" but something hot enough to melt the plastic but not brown it did those. There is no way to remove them AFAIK Also: those appear to be on the bottom so no one sees …

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Re: ASUS CUSL2 2nd RAM slot not working

Posted on 2022-09-28, 02:01

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Have you tried the third slot ?

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Re: Looking for Panasonic LF-1500JDN (PD/CD) pcmcia interface drivers for 98se or XP

Posted on 2022-09-28, 00:55

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hmm I have a Panasonic KXL-D740 (ext CDROM + PCMCIA card) and had to search up some Win9x drivers a decade or so ago, it is scsi but somewhat similar combo of Pana Ext.CDROM and Card. Will go check my archives to see where I got them (hope I left notes) ...Maybe there are some Win98 drivers for LF- …

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Re: BIOS needed for Acer V12P socket 4 motherboard

Posted on 2022-09-27, 02:21

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Anonymous Coward wrote on 2022-09-27, 01:25: Is the BIOS on this board an Acer in-house job? Yeah interesting. I have seen Acer bios stickers before but not cut to show the chip ID like that, the few seen are long-wise with the chip like an Award or AMI or some P.Bell stickers.

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Re: The Soundblaster DSP project

Posted on 2022-09-27, 02:15

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I used a TL866 as well. 80C52 is a mask ROM - 87C52 (EPROM) should be fine, I used a 89C52 (EEPROM) Thanks ! I see some plcc44 Atmel 89c52 on fleebay like the ones in your picture (duh I should have looked closer ;p) for about same as those 87c52's, they are local here in USA so will order a few. …

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Re: The Soundblaster DSP project

Posted on 2022-09-26, 03:58

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maxtherabbit wrote on 2022-09-26, 01:19: It is doable. My CT2230 also has CSP socket and I made it fit. Had to file down the outside of the PLCC-44 socket just a fuzz for clearance Curious what programmer you used. My TL866 does not list 80c52 but does 87c52. Wondering if P87C52EBAA SIGNETICS would …

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Re: Old hardware giveaway thread.

Posted on 2022-09-26, 03:51

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Damn I check in every few hours and missed another one. The ram would have been handy 😀

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Re: I need help with this Orchid TurboEGA card.

Posted on 2022-09-26, 03:46

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sounds like you tried everything possible without a manual. Curious if you tried the NMI jumper (which should allow the adapter to run them instead of the mainboard. Also not sure but maybe the 2/3 jumper could be of benefit. Read that if you change from non-turbo to turbo it will reboot the …

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Re: PCCHIPS/AMPTRON PM-0599LMR (M599LMR) Motherboard Pin Identification?

Posted on 2022-09-26, 03:32

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thru the miracle called "The wayback machine" of Archive org I give you this from ulysses : sis_530_mobo.jpg = http://web.archive.org/web/20180108013701/http://postimg.org/image/3lt2l72fb/ Yes M599LMR supports only to 768Mb ram. The manual says 3 x256Mb or 768MB maximum and that is the max no matter …

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Re: The Soundblaster DSP project

Posted on 2022-09-26, 01:13

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have a CT-1770 (nearly identical to 1740 but scsi not ide) with dsp 4.11 and would like to down grade to 4.05. Now maybe I can 😁 My 1770 has a socket for ASP/CSP chip like pierre's (not soldered smd) so a bit less room to work with but do-able I think.

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Re: The Soundblaster DSP project

Posted on 2022-09-25, 22:10

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maxtherabbit wrote on 2022-09-25, 19:21: it works! burned the decrypted binary to a AT89C52 20220925_142444.jpg Good work Max ! Which DSP version did you use ? 4.05?

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Re: I need help with this Orchid TurboEGA card.

Posted on 2022-09-25, 15:06

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I checked VCFED and only links to old articles about it. The one review with best info is this: https://books.google.com.au/books?id=LRBokcwLB70C&pg=PA324&lpg=PA324&dq=Orchid+Turbo+EGA&source=bl&ots=LgfScMh144&sig=pO-iY_IiWhNOC2fEmDQJ46Yu6ns&hl=en&sa=X&ved=0ahUKEwj74Y6S1JnUAhWKoJQKHYYTBS4Q6AEIMDAD …

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Re: I need help with this Orchid TurboEGA card.

Posted on 2022-09-25, 05:28

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yeah figured that cable thing out after reading the one pdf. Have not found anything else but..sometimes pictures can tell you something without a manual. You should not hurt the card if you change one or two jumpers. The only diff in jumpers from yours and DavejustDave (where he says works on 5160) …

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Re: I need help with this Orchid TurboEGA card.

Posted on 2022-09-25, 03:36

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

wow that is one crazy Vid card with a 8088 cpu and a 286+287 math-co. where does that ribbon cable go in the 5150 Some type of XT multi - CPU upgrade card with video. https://manualzz.com/doc/26296796/orchid-graphics-cards Maybe Dave got his working: https://www.vogons.org/viewtopic.php?p=691846# …

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Re: UMC UM8498F board, no POST

Posted on 2022-09-25, 03:06

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I remember someone on Ebay selling those as untested system pulls. There is a topic here about them somewhere and Yes there was little to no info on them on the internet.. How to identify this 486 motherboard techmedia UMC um8498F Maybe some one there can help you.

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Re: Gigabyte GA-5AX Rev. 4.1 vs Rev. 5.2

Posted on 2022-09-25, 02:31

by

by Horun

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The rev 1.x FSB only goes to 83Mhz stable, the later rev's go to 100Mhz and beyond stable < probably wrong remembering something about clock limited on first rev's... added: there were added CPU support in the v4 and v5 that made it one of the best SS7 for overclockers if you want a quick comparison …

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