Re: Anyone out there have a ECS P4VXASD2+? Trying to flash the BIOS but cant get the flasher.

Posted on 2019-06-20, 15:36

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I wanted to tell you about my unfortunate experience with the BIOS update of an MB ECS. Before proceeding with the update, create a copy of the one currently present in your MB. Unfortunately in my case, ECS has two models of the same name but with different SB, on-line there is only one ( …

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Re: Turbo XT mainboard - no POST, -12v missing

Posted on 2019-06-19, 21:37

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

found a manual for an 8 MHz turbo board, located here: http://minuszerodegrees.net/manuals/Turbo-XT% … ion%20Guide.pdf In addition to the jumper settings, you will find connection diagrams.

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Re: Turbo XT mainboard - no POST, -12v missing

Posted on 2019-06-19, 21:23

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Installing new capacitors could restart the MB. In the past it worked on a VGA VLB GD5424, after checking them with my ESR70, I found values ​​slightly above those printed, at which point I changed them to new ones, and it restarted. However, about the POST CARD ISA, I'm pretty sure (but I could be …

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Re: Turbo XT mainboard - no POST, -12v missing

Posted on 2019-06-19, 19:07

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, even if I have not had direct experiences with the MB XT, I could suggest you a line check, in this way you could find if even some other voltage is not ok. It is very simple, with the MB disconnected from the PSU (therefore P8 and P9 disconnected), put the black tip where in P8 there is a black …

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Re: PCChip M575 graphical problem

Posted on 2019-06-16, 20:16

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Recently I got a PCChip M575 mainboard with Cyrix C2 300MHz on it. While I tried to powered it on, nothing on screen. Also no beeping from PC speaker. Then I plugged graphic card (SiS 6202) in another PCI slot, I got a blurred POST screen like this. https://i.ibb.co/tDNnzsH/QQ20190616-1.jpg I tried …

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Re: Can this Pentium 100 motherboard accept Pentium MMX CPU?

Posted on 2019-06-16, 17:53

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I found this web page dedicated to the M506 / M507, here you can find a lot of info, on CPU cache and more. I think it may help you to update your MB. http://th2chips.freeservers.com/m507/index.html

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Re: PCChip M575 graphical problem

Posted on 2019-06-16, 17:01

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As I said before if with the video card ISA works, and excluding a failure to the PCI slots, you should replace the video card with another PCI. You should be able to find a second-hand one at a good price, or there would be 8MB ATI RageXLs online, which should be like new. The choice depends on the …

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Re: Can this Pentium 100 motherboard accept Pentium MMX CPU?

Posted on 2019-06-16, 16:46

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

On this site I found some important info on the K6-233 with Vcore 3.2V or 3.3V: http://www.amd-k6.com/cpu-specs/ What matters is the Watts, because the linear regulators warm up proportionately. In practice taking as an example the K6-233 (VCore 3.3V) and a K6-233 for laptop (VCore 2.1V), we note …

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Re: PCChip M575 graphical problem

Posted on 2019-06-16, 09:34

by

by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Recently I got a PCChip M575 mainboard with Cyrix C2 300MHz on it. While I tried to powered it on, nothing on screen. Also no beeping from PC speaker. Then I plugged graphic card (SiS 6202) in another PCI slot, I got a blurred POST screen like this. https://i.ibb.co/tDNnzsH/QQ20190616-1.jpg I tried …

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Re: Can this Pentium 100 motherboard accept Pentium MMX CPU?

Posted on 2019-06-16, 09:17

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you want to put a 233 in that MB, I remembered that there is a K6-233APR with VCore 3.3V, so in practice it is a single core, the problem with those K6 CPUs is the heat they give off, including the K6-233ANR with Vcore 3.2V I don't know if the APR and ANR are the same CPU, and therefore use any …

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Re: Can this Pentium 100 motherboard accept Pentium MMX CPU?

Posted on 2019-06-15, 20:34

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I would like to add some info on the M506 V1.1 card I have on my PC. I found a note on the COAST module in my PC, it's a 512KB module and it says "RAM REALTEK", has soldered 4 HY534256S-70 chips I don't know if this info can be useful, but the suspect 256KB on-board cache is fake. The configuration …

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Re: Can this Pentium 100 motherboard accept Pentium MMX CPU?

Posted on 2019-06-15, 08:34

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi, I have a similar card in the PCs in my collection, the motherboard I have is a PCChips M506 V1.1 and it's a socket7. He installed a Cyrix 6X86 P166 + CPU, which goes to 133MHz, I remember he has the COAST cache module, but I should see what model it is. As a CPU Surely you can put all those …

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Re: Troubleshooting Repair Siemens D1120 (i810)

Posted on 2019-06-11, 20:09

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I performed some other measures, in particular I performed a test on the 20-pin ATX connector, in practice I measured the Ohms with the black tip on pin 3, and the red on the other pins. I found a strange value in the PIN of the + 5VSB (Pin 9), the hand moves a little and then returns to the …

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Re: K6-2 300mhz in Socket 7 motherboard?

Posted on 2019-06-11, 19:49

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I took a look at CPU-World to see the Watts of the K6-200 and compare them with the K6-2-300. The K6-200 has these values: Minimum / Typical / Maximum power dissipation: 1.6 Watt (Stop Clock mode) / 12 Watt / 20 Watt The K6-2-300 has these values: Minimum / Typical / Maximum power dissipation: 3.5 …

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Re: K6-2 300mhz in Socket 7 motherboard?

Posted on 2019-06-11, 08:57

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I can tell you what I did, I put a K6-2 @ 400 MHz on a Siemens D1034, setting the switches to 2X (see 6X in the K6CXT) and FSB 66 MHz. Unfortunately it is jumperless therefore only one VCore (not selectable), I measured in the 2.8V mosfets, missing the jumpers I can not add resistances to get lower …

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Re: IBM Dual Socket 8 with standatd AT PSU

Posted on 2019-06-10, 09:38

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here is the manual: http://ps-2.kev009.com/pccbbs/commercial_desktop/6899tim.pdf

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Re: IBM Dual Socket 8 with standatd AT PSU

Posted on 2019-06-10, 09:27

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

A normal AT PSU might not be enough, usually they have 2 connectors called P8 and P9, while here it needs one with 3 (so P8 P9 and P10). I can't tell you if connecting only the P8 and P9 functions. Perhaps with an ATX PSU and an AT adapter it could be the solution, but you should find one with the …

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Re: How do I set up a CDrom in MSDOS 6.22?

Posted on 2019-06-10, 08:33

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I imagined that this worked. However the important thing is that you have solved. Have fun.

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Re: FOREX 386 Cache board doesn't post

Posted on 2019-06-09, 20:51

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It depends, sometimes it can happen that a PC does not start if there is a low battery. I have the same POST-CARD, if I can tomorrow I try it on a 386 DX40 that works, I want to see which LEDs are on, I don't know if it can help you. At the moment I'm trying to restart a Siemens D1120 (i810), in the …

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Re: How do I set up a CDrom in MSDOS 6.22?

Posted on 2019-06-09, 20:35

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by PC@LIVE

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm glad you solved it. Also in my PC it works with OAKCDROM.SYS Just to know, but is the CD-ROM connected to the sound card, or to the controller?

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