Re: Socket 7 and mmx

Posted on 2021-01-31, 11:44

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If I'm not mistaken you should have a transistor with large heatsink next to your CPU socket and between that and the outer edge of the board should be two rows of fifteen solder points, correct? This is where an optional VRM module for split voltage support can be installed. If it's not present you …

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Re: modern power supply on a old pc

Posted on 2021-01-31, 10:49

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The system is likely going to draw less than 100W on all power rails combined. Clean, stable 20A on +5V is going to be fine.

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Re: Socket 7 and mmx

Posted on 2021-01-31, 09:11

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

And as for the "different socket", the socket itself is completely identical, it's just different wiring for at least one of th pins, that's all. I believe this is true for the processor side, however the Socket 7 socket has an additional "KEY" position that is not present on Socket 5 sockets. For …

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Re: AST Power Premium motherboard

Posted on 2021-01-28, 17:38

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for the picture. It always helps to better understand what one's dealing with. In this case I didn't realise the PC used a CPU board. Of course without that it simply can't POST. Do you have a multimeter? Can you check the voltages on the PSU with just a hard drive connected? It looks like …

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Re: Huge delta fans on a fan controller

Posted on 2021-01-28, 15:35

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Even though running a fan at 7V by hooking it up between the two positive rails on the PSU is an old trick and you can (or could?) actually buy commercially produced adaptors that work exactly like this I do not know wether this can cause any problems on some PSU designs because it is not how they …

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Re: AST Power Premium motherboard

Posted on 2021-01-28, 07:28

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Welcome to the forum! :-) A corrupted BIOS is generally possible but it would not be my first suspicion. With a machine that age it is always possible a component has failed short. This would often keep the PSU from creating stable voltages and result in the system powering up but not POSTing. What …

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Re: Huge delta fans on a fan controller

Posted on 2021-01-28, 07:11

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

PSU manufacturers don't want you to know this but there's actually a 7V rail on your standard 4pin 5.25"-drive connectors. Measure for yourself, there's a ~7V difference between the outer wires. Just keep in mind that even at 7V the fan is still drawing ~2.33A/16.33W. 😉

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Re: Can anyone here design a usb isa card?

Posted on 2021-01-28, 06:39

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

There are PCI cards that combine USB and IDE/SATA controllers on a single card. They probably still won't allow you to boot off of their USB ports but if the point is conserving slots on your mobo this may be an alternative solution until you find someone willing to create an ISA USB adapter. A card …

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Re: Diamond Monster 3D Voodoo 1, no POST

Posted on 2021-01-27, 12:42

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You're very welcome, thanks for the update/conclusion! 👍

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Re: Diamond Monster 3D Voodoo 1, no POST

Posted on 2021-01-26, 11:48

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You have mentioned the card is in very good visual condition. Still I recommend checking for bent or disconnected legs especially on the fbi chip again. Those regularly cause the PC to power on but not POST.

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Re: How to remove this CPU fan?

Posted on 2021-01-25, 15:59

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by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It's a stupid mechanism. You need to press down on the large tabs to unhook them and then simultaneously pull the far out side of the large tab up/to the side so you bend the hook away from the retention frame so it does not hook in again when you stop pressing down on the tab.

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Re: Asus P2B general comments please

Posted on 2021-01-24, 15:55

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by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thank you for posting this 👍

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Re: Save or recycle hardware.

Posted on 2021-01-24, 15:46

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Check the datasheet, I bet they're well within specification. If you can touch an IC but it quickly gets too hot to leave your finger on it that indicates ~60-70°C. That seems plausible with VRM designs of similar boards.

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Re: The Saddest Steam Build 2021

Posted on 2021-01-22, 12:23

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by Doornkaat

in Marvin \ System Specs

in Marvin \ System Specs

While as a fellow customer I agree with your demands I don't think Valve are going to Offer a stripped down game launcher instead of their bloated compatibility breaking bullshit when all most people want to do is download and launch a game. They make money from people buying games, not from people …

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Re: Fastest socket 7 build on a 430tx chipset

Posted on 2021-01-20, 06:43

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by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Sphere478 wrote on 2021-01-20, 00:18: Also these guys asking 500$ for a voodoo are dumb 🤣. Well, you're getting two processors that bring their own RAM and their speed can be adjusted through software in 1MHz increments without hardware modification. Some might argue it's actually a better deal …

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Re: Will this power supply work as a replacement? (pics inside)

Posted on 2021-01-19, 14:44

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

All voltages are present at the same or (way) higher value according to the sticker so that's good but while Delta is a reputable brand I have no idea about Replace Power and the quality of their PSUs. Edit: A higher amp rating does not mean it forces more electrons through a circuit. It just means …

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Re: Best and most cost-effective graphics card for Win98SE?

Posted on 2021-01-19, 10:56

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by Doornkaat

in Marvin \ Video

in Marvin \ Video

Ok so I've found an GeForce FX5200, and thankfully it's AGP. However, something strange I've noticed is that it advertises itself as a 128-bit card. Is it still going to work wine with Win98? or are those 128 bits just going to be too much for it? This is related to the card's memory bus. The OS …

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Re: Can't get my Voodoo1 on my socket A mainboard to work

Posted on 2021-01-18, 21:36

by

by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I believe that Voodoo1 and 2 cards do not work with Athlon CPUs. Not sure about Athlon XP. I recall having to use fastvoodoo drivers to get Voodoo2 working on my SlotA motherboard. I have used reference drivers with a regular 900MHz Thunderbird Athlon and VIA KT133 chipset with both Voodoo1 and …

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Re: Best and most cost-effective graphics card for Win98SE?

Posted on 2021-01-18, 21:07

by

by Doornkaat

in Marvin \ Video

in Marvin \ Video

The legality depends on your location. Selling and using original licenses - even OEM ones - is perfectly legal in the EU. Microsoft is not known for going after people using Win9x keys they have found online, apparently not even really for the sites hosting them, and Win98 does not need online …

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Re: any tips on desoldering the dallas DS12887A from a AOpen AP53

Posted on 2021-01-18, 08:09

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by Doornkaat

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Preheat the board with a hair drier. Some of the pins are connected to a large ground plane that wicks away the heat pretty quickly and raising the pcb temperature before soldering really helps.

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