Re: Holy 5v rail batman

Posted on 2020-05-05, 18:45

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I was looking for a PSU for my Athlon system and came by this for sail on eBay and just had to post a photo of it. 70 flipping amps on the 5 volt rail. :O s-l1600.jpg Its an AT PSU too, what kind of AT system needs that much power ? Any thoughts? I'm guessing a 6 or 8 CPU Pentium pro system? 70 …

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Re: Bought these (retro) hardware today

Posted on 2020-05-03, 18:24

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

if I search for "Compaq 1024/E" I mainly find references to this card with a different graphics chip: http://vgamuseum.info/index.php/help-identify/item/155-compaq-128084-004-qvision-1024 while mine also has the Motorola SC02SH007DK04, they differ in amount of memory and different RAMDAC though. …

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Re: Bought these (retro) hardware today

Posted on 2020-05-03, 18:10

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

if I search for "Compaq 1024/E" I mainly find references to this card with a different graphics chip: http://vgamuseum.info/index.php/help-identify/item/155-compaq-128084-004-qvision-1024 while mine also has the Motorola SC02SH007DK04, they differ in amount of memory and different RAMDAC though. …

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Re: Bought these (retro) hardware today

Posted on 2020-05-03, 18:08

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

if I search for "Compaq 1024/E" I mainly find references to this card with a different graphics chip: http://vgamuseum.info/index.php/help-identify/item/155-compaq-128084-004-qvision-1024 while mine also has the Motorola SC02SH007DK04, they differ in amount of memory and different RAMDAC though. …

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Re: Bought these (retro) hardware today

Posted on 2020-05-03, 16:53

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

this is the card I got, it's slightly different. is there an easy way to tell if this is EISA or OPTiLB since it was apparently available in both? the pin arrangement seems to be the same as yours... so I guess EISA? edit: mine seems to be a "Qvision 1024/E" I guess 4/8 is just the amount of memory …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-02, 22:59

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found this thread: https://www.experts-exchange.com/questions/10040113/Quantum-V4P895P3-smt-v5-0-motherboard-problem.html It reads: "I can't find the manual, but I know that there is only a few certain memory configurations the motherboard can take." Again I'm starting to wonder could this be …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-02, 19:09

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK, I made the measurements! :) With 3V jumper setting (JP1 open) I get 3.469V from VCC legs and with 5V jumper setting (JP1 closed) I get 5.094V-5.115V from the VCC legs. Great! It means that the voltage regulation is working. I would suggest you to configure the motherboard using the second …

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Re: 486 Multimedia dream build ( 1993/94 ).

Posted on 2020-05-02, 12:16

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by CoffeeOne

in Marvin \ System Specs

in Marvin \ System Specs

I have a NEW video card. Wow 100MHz DRAM in a vesa local bus card. :D Good catch, i just noticed that. What speed dram would works better in a VLB motherboard ? Higher speed would not be a problem. Did you put in the RAM by yourself? Does the card work? Will it detect 1MB or 2MB? When it works and …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-02, 12:11

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Im wondering one thing about the manual, it's quite specific of the memory configuration regarding "Single bank" and "Dual-bank" memorys, how do I tell which one my memorys are? The manual can be found from here: http://www.elhvb.com/mboards/qdi/895p3s5.pdf yes, that's really strange: You are …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-02, 11:49

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I am quite sure, that both manuals that you attached, do not match 100%. So ignore it, and use as only reference the writings on the board. The second manual seems to match his board, what makes you think it doesn't? All jumpers seem to be in the same position and markings as in the manual. True, …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-02, 11:07

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

TIP31C is a general purpose transistor, not a voltage regulator. We indeed need a detail picture around that area to see what circuit they are using. https://www.st.com/resource/en/datasheet/tip31c.pdf OK, thanks for the info :) I uploaded some better pictures of the CPU area. I don't know, just a …

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Re: 486 Multimedia dream build ( 1993/94 ).

Posted on 2020-05-02, 10:43

by

by CoffeeOne

in Marvin \ System Specs

in Marvin \ System Specs

Intel486dx33 wrote on 2020-05-02, 08:08: I have a NEW video card. Wow 100MHz DRAM in a vesa local bus card. 😁

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-02, 10:17

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

TIP31C is a general purpose transistor, not a voltage regulator. We indeed need a detail picture around that area to see what circuit they are using. https://www.st.com/resource/en/datasheet/tip31c.pdf OK, thanks for the info :) I uploaded some better pictures of the CPU area. I don't know, just a …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-01, 18:54

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Shit :D your right about the 50Mhz, well maybe my brains&eyes starts to be tired of all this jumpering :D About the voltage regulator, should't i get out something with DX processor (5V) jumper selection? I assume the voltage regulator is bypassed with the 5v jumper. I tried with a AMD 3V processor …

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Re: Bought these (retro) hardware today

Posted on 2020-05-01, 18:09

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

boards boards boards! ...part 2 of the big "scrap" lot ASUS TXP4-X socket 7 ATX, FIC PA-2002 socket 7 FIC PA-2000 socket 5, Intel Tahiti socket 5 hardware38_32.jpg Gigabyte GA-586ATV socket 7, Gigabyte GA-5AA SS7 with a bit of dirt ASUS P/I-P55TP4XE socket 7, Soyo SY-5EH5 socket 7 hardware38_33.jpg …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-01, 16:50

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Yes, all the CPU's are Intel, also tried with AMD 100Mhz. I didn't try with 25Mhz External, the CPU frequency selections variate a bit depending which manual look. Manual 1 (From Total Hardware 1999 index) Speed JP38 JP39 25MHz Open Closed 33MHz Closed Open 40MHz Open Open 50iMHz Open Closed 50MHz …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-01, 16:03

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK, I explored further, DX 33MHz doest heat up at all, DX2 66MHz (both WB and without) a bit and 50Mhz DX2 heated up quite nicely. However no POST :/ Could it just be the BIOS that is defected? OK, that's interesting. So the board is not completely dead at least (?) Are all 4 cpus intel? That means …

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Re: Socket 4 Micronics M5PE two IC´s missing,

Posted on 2020-05-01, 14:17

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

hi with magnifing glases its visible, not easy to catch with a normal camera. both chips have signs of desoldering. I have searcht for pictures from this board and there is a version where the lower one is missing, but no pic at all with two ICs missing. You don't own the board by yourself? EDIT: …

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Re: Bought these (retro) hardware today

Posted on 2020-05-01, 11:55

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK, so like in the picture, you have now 128kB cache (2 data chips too much but that should not hurt), and it works ok? As shown in the picture, you have set the cache size correctly to 128k Is this correct? Just to be sure. Did you set the cache size to 256kB, when you put in all 8 data chips? …

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Re: Problems with QDI v4p895p3/smt V5.0

Posted on 2020-05-01, 11:40

by

by CoffeeOne

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OK, I explored further, DX 33MHz doest heat up at all, DX2 66MHz (both WB and without) a bit and 50Mhz DX2 heated up quite nicely. However no POST :/ Could it just be the BIOS that is defected? OK, that's interesting. So the board is not completely dead at least (?) Are all 4 cpus intel? That means …

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