Tom Verbeure

@tom_verbeure
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798 Posts
I love playing with FPGAs. There can never be enough LEDs. Hardware engineer at Nvidia, but my views here are my own. Also @tom_verbeure you know where but I don’t post there anymore.
bloghttps://tomverbeure.github.io
Previous owner had a cat. There is no other explanation.

Onto the second 54831B scope. This one immediately boots up to a BIOS screen. It has 512MB instead of 256MB of memory. But it doesn’t detect a HD.

This makes sense… because when I open it up, it doesn’t have one. It also doesn’t have any of the IDE cables or the special adapter board to connect to the LS120 floppy drive.

I think I’ll simply give up on the LS120 floppy drive, but 2 IDE cables and a compact flash adapter.

That concludes the work for today.

The money shot: the scope is working fine. 600 MHz/4 Gsps.

Not bad for a day of playing around. 4 Gsps works fine, but only when 1 channel is enabled, it drops down to 2 Gsps when you switch on another channel.

I need to figure out how to upgrade it from 600 MHz to 1 GHz. It’s supposed to be only a resistor fix. And there’s a second identical scope waiting too. $200 well spent.

The BIOS screen is up!

All it took was remove the CPU from the socket… and put it back.

This is with a generic VGA card and HD disconnected. I can now start to put the removed components back.

How do you remove the fan/heatsink of a CPU?
Long beeps. No BIOS screen. Only RAM and alternate VGA card plugged in, but even with those unplugged it behaves the same. CPU fault?
I could try swapping the motherboard of the other scope…
Full HD copy went smooth without any audible attempts to retry and no errors reported.
I also checked if there was any proprietary data left from the previous owner, but no. 🙂
Next step: trying to make this things boot. Replace bios battery. Connect VGA monitors. Anything to get some amount of life out of it beyond ominous beeps and a black screen...
IT'S ALIVE!!!
HD liberation!
I’m 99% sure the drive is dead, but hoping for that 1%, so let’s connect to a IDE to USB adapter.
Most of the effort is because of this %%**^% screw.
I’ll admit: Agilent tried hard to shield the HD from vibrations… It is mounted on a holding plate with rubber spacers.