Re: How do you know it's not a fake 4004?

Posted on 2021-01-29, 03:05

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It’s so weird you mention this, I’ve been looking at picking up a 4004 myself and was just looking at these last night. For me personally, I have no way of testing a 4004. Just like I can’t test any of the other very early intel chips I have. I look for the seller history. That particular one, the …

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Re: Hosed my Seagate FireCuda 1000GB

Posted on 2020-10-30, 03:53

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I suspect this is a firmware or NAND problem on the drive. Back in the day when I did data recovery, Seagate had a batch of bad firmware that when it failed, reported the drive as 0MB like your SMART report shows. Those were able to be ‘repaired’ over the drives console using a serial cable. I have …

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Re: Socket 5 pentium on socket 7 motherboard.

Posted on 2020-10-25, 08:15

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Here you go: https://www.digchip.com/datasheets/parts/data … 5/W127H-pdf.php

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Re: 386 with VLB, suggestions?

Posted on 2020-10-20, 06:58

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Doesn't VLB only work with 486 and later? Somehow lost my post..... It’s basically a direct electrical connection into the 32 Bit memory bus of the 486. It can be adapted to later systems like the Pentium but is hit or miss since that requires a bridge chip usually from PCI->VLB since the Pentium …

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Re: Bought these (retro) hardware today

Posted on 2020-10-20, 02:54

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I bought two AMD K6-2+ 350mhz 1.5v CPUs I guessed that they can probably handle 2.0v as the other K6-2+'s and the 1.5v is just for low wattage mobile? so quite good for oc maybe :) Can someone confirm before i blow one x) I have a ss7 board that goes down to 1.8v the rest to 2.0v Thanks for posting …

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Re: Rare storage media aficionado build

Posted on 2020-10-18, 06:55

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

In my opinion, the easiest solution is to find the most recent motherboard that supports 5.25” floppy drives. Dual support is not so important. 3.5” disks could be read via a USB drive or over IDE using a LS120 drive which is missing from your list ;) We had a machine setup like this for data …

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Re: New sound card project: AWE64 Legacy

Posted on 2020-10-17, 16:01

by

by gbeirn

in Marvin \ Sound

in Marvin \ Sound

How are you handling the placement of the QFP and SOIC chips? This isn’t by hand? I’m assuming you have a pick and place machine?

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Re: I made a miniature IBM PC

Posted on 2020-10-01, 17:39

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This is by far, one of the coolest things posted to this site. Great job thanks for sharing!

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Unknown 486 interposer

Posted on 2020-10-01, 01:34

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

So I buy lots of stuff. I don’t always get to look at it or test it until sometimes years after. At some point I purchased 168/169 pin PGA sockets to repair 486 motherboards. They came stacked together and wrapped in cellophane. I’ve used a few from time to time. One bundle was apparently not …

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Re: Oops! I'll be a data recovery expert soon

Posted on 2020-09-26, 04:56

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For something like this where the partition table was deleted but the areas of the drive where the data was stored was untouched, you’ll be able to recover all of it. It’ll take time like your seeing but it should all be viable in the end. Any of the recovery software for ‘Deleted’ files works …

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Re: Another PS/2 Mouse ISA (ISA8) card adapter

Posted on 2020-09-25, 22:57

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@Rio444 do you assemble these by hand? Meaning you have a soldering iron and do each smt part? Or do you have a machine to do it?

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Re: Oops! I'll be a data recovery expert soon

Posted on 2020-09-25, 22:23

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For something like this where the partition table was deleted but the areas of the drive where the data was stored was untouched, you’ll be able to recover all of it. It’ll take time like your seeing but it should all be viable in the end. Any of the recovery software for ‘Deleted’ files works about …

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Re: Help needed: looking for someone in the US who can help me recover a DCA2 motherboard

Posted on 2020-09-23, 16:32

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I can do this sort of stuff. PM if interested.

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Re: "Fake 486 Processor?" thread continuation (not fake)

Posted on 2020-09-21, 21:12

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I ordered one as well. Looks like the seller puts up a few at a time for sale. Mine looks exactly like the pictures here and also works fine. Edit: ive ordered two more so I’ll delid one to see what we are dealing with.

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Re: Sourcing a socket 2, 3 or 4 for 486. To replace the burned out socket on compaq deskpro XL 4/66.

Posted on 2020-09-21, 04:13

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have PGA sockets I could send you. They are just 169 pin and not ZIF. I use them to replace broken ZIF sockets just fine.

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Re: Dual Pentium Pro Build Thread

Posted on 2020-08-03, 03:46

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

That's going to be a fun system once it's done. What are you using for cpu cooling? AMD coolers (thin ones should fit) AM2 and compatible. Original ones are also supported, but I do not have them. My slotkets have holes for the backplate. CE08CF45-452E-4A03-87DA-BD05419B0399.jpeg Can you tell me a …

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Re: Arrived ISA 8 bit NE2000 network adapter boards

Posted on 2019-03-18, 18:37

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Do you have a price? Edit: and a parts list

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Re: Bios update failed on a chaintech 6btm, any helpers?

Posted on 2019-03-18, 17:51

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I PM'ed you my email address.

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Re: Bios update failed on a chaintech 6btm, any helpers?

Posted on 2019-03-17, 20:29

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think you need a minimum of 10 posts. I can't figure out how to use that site to download, it wants me to buy some program. With some googling I found 6btm0505.bin as the most recent so I downloaded and will burn that for you.

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Re: Bios update failed on a chaintech 6btm, any helpers?

Posted on 2019-03-17, 19:47

by

by gbeirn

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Got a link to the BIOS or can attach it here? I should be able to burn one and drop it in the mail tomorrow.

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