Re: Video Card prices

Posted on Today, 01:07

by

by douglar

in Marvin \ Video

in Marvin \ Video

In theory lowest value for them is the cost of energy used to mine them. That's not how it works though. Agreed. The cost of bit coin is the cost of the energy + hardware depreciation + the lost opportunity of doing something else with the computer hardware, but that's cost, not value. The value of …

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Re: Video Card prices

Posted on 2021-02-27, 01:58

by

by douglar

in Marvin \ Video

in Marvin \ Video

Well china isn't going to allow crypto currency. And at anypoint the EU or US central bank could just ban it. Theres nothing stopping them https://twitter.com/theophite/status/1030225104234373121?lang=en It's like if idling your car 24/7 occasionally produced solved Sudoku puzzles that you could …

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Re: 286/386 BIOS wonted

Posted on 2021-02-27, 01:23

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Closest I have is a bios from a n M1209 motherboard. Deksor put the bios here: http://www.win3x.org/uh19/motherboard/show/6283 But It looks like they have a 1207 bios's here: http://www.win3x.org/uh19/motherboard/show/957 http://www.win3x.org/uh19/motherboard/show/6757

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Re: Windows 98se crashes with PCMCIA cf Adapter and card

Posted on 2021-02-22, 21:29

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can you use a Dos utility like speedsys, System Information, or HW Info to identify what ATA protocols are getting negotiated? Perhaps the PCMCIA adapter is attempting a different UDMA or multiword IO mode that it can't support. Do you have DMA enabled in windows 98 with both adapters?

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Re: Keep GeForce 4 to cards from dying

Posted on 2021-02-17, 02:04

by

by douglar

in Marvin \ Video

in Marvin \ Video

ESD isn’t so much a problem for me in the summer, but I get nervous about it in the winter when humidity drops. I can imagine that people who live in warmer, humid climates might not see the issue at all. For me, I had to stop using my rolling chair becuase it was a little van der graaf generator. I …

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Re: Mod a Micro ATX Case --> Baby AT Case

Posted on 2021-02-13, 03:38

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Mine is a 5 slot baby AT mobo, so the AGP is the only slot facing a wall, but the AGP slot comes out pretty close to the existing serial port opening, so I'm going to see what I can do with a Dremel when I get a chance. I'm also going to get a 6-32 tap to see what I can do for posts. I find lots of …

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Re: Mod a Micro ATX Case --> Baby AT Case

Posted on 2021-02-12, 22:48

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the info. I appreciate it!

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Re: PS/2 keyboard compatibility

Posted on 2021-02-12, 11:22

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have had a case where a slot A athlon motherboard would not post when connected to a old Din 5 lexmark keyboard, but I’ve necer seen an old motherboard have prpblems with a newer keyboard.

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Re: 286 Rev to 486 not working

Posted on 2021-02-12, 03:49

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The bios and chipset have some say in the compatibility. The oscillator will determine the base speed of the chip.

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Submit your speedsys benchmark reports here

Posted on 2021-02-11, 18:44

by

by douglar

in Marvin \ System Specs

in Marvin \ System Specs

I'm working on a database of old computer benchmarks that I would like to make publicly available on the internet. If you want to add your build to the database, reply to this thread and attach the text report from speedsys. Multiple submissions with different processors, caches, components, bios …

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Re: Feel the RAGE!

Posted on 2021-02-11, 00:41

by

by douglar

in Marvin \ Video

in Marvin \ Video

I was putting together this list to help people too-- https://www.vogonswiki.com/index.php/ATI#ATI_Rage_add-in_boards The Mach64-GT chips are not very common. Looks like you have one. https://www-01.ibm.com/common/ssi/ShowDoc.wss?docURL=/common/ssi/rep_ca/3/649/ENUSA97-0003/index.html&lang=en& …

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Re: Mod a Micro ATX Case --> Baby AT Case

Posted on 2021-02-11, 00:21

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

squelch41 wrote on 2021-02-10, 21:06: Works well How did you do the power? Did you refit the case for an AT power switch or did you use an ATX power with adapter and use the existing power switch?

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Re: How to upgrade your (really) old computer to SSD

Posted on 2021-02-10, 18:31

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

ya cf cards don't have dram cache. So does SandForce controller and quite a lot of other PATA/SATA based SSDs. Speedsys reports that some of my CF's have a 1KB ram cache. Didn't have a strong correlation with performance though. It also reports that the 40pin DOM's that I tested have a 1KB cache. …

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Mod a Micro ATX Case --> Baby AT Case

Posted on 2021-02-10, 18:14

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Has anyone performed "realignment" surgery on a Micro ATX case so that it fits a baby AT motherboard? I got plenty of old Micro ATX cases, and it seems like I just need to mash down a few stands fit in a few new ones put in a 5th slot for an AGP card. Has anyone else tried this? Photo Feb 10, 12 33 …

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Re: Pentium CPU issue

Posted on 2021-02-10, 15:12

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

BardBun wrote on 2020-12-05, 02:16: There is no such thing as too much thermal paste when it comes to having issues with the temperatures. No such thing as too much thermal connectivity. Just issues with too much electrical connectivity.

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Re: Cirrus Logic CL542X Vesa Local Bus graphics card

Posted on 2021-02-10, 15:06

by

by douglar

in Marvin \ Video

in Marvin \ Video

Cards from that era usually have an FCC Id printed on them. Is there one on the back? If there is, you can look it up the vendor on the USA FCC website.

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Re: Feel the RAGE!

Posted on 2021-02-10, 14:58

by

by douglar

in Marvin \ Video

in Marvin \ Video

Is it a 3D Xpression, part number 109-34000-10 ?

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Re: Best pci 2.1 non sse video card?

Posted on 2021-02-10, 14:33

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I got a slew of older cards recently like really old ciris logic trident rage 128 etc and to my surprise only one of those worked on my tyan s1564 which makes two out of all my cards and sometimes it doesn't sometimes it fails to initialize and I have to reset it a few times there has got to be a …

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Re: Update BIOS in 486 FIC Motherboard: from 64k to 128K

Posted on 2021-02-09, 00:38

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK, that worked very nicely for me too. I grabbed the second 1/2 of the rom starting at 0x10000 from the files here: http://cwcyrix.duckdns.org/ftp-archives/ftp.fic.com.tw/motherboard/bios/486/486-vip-io/ Put in on a W27C512, and learned that the non-divot end of the DIP28 chip needs to be flush …

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Re: Intel and AMD 486 subtle differences

Posted on 2021-02-08, 16:25

by

by douglar

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

What is the date on your motherboard BIOS? My experience is that it is difficult to find a motherboard with a BIOS earlier than October 1994 that correctly support the P24D processor family, whether it is AMD, Cyrix or Intel. Sometimes the older BIOS can identify a P24D CPU, but the performance is …

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