Category Archives: Electronics

BIOS update on ZTSystem JASPER12 / Inventech B810 / A9DRPF-10S

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Using Xeon E5-26xx v2 CPUs in this server requires a BIOS update.
Updating using AFUDOS does not work (and will brick your server).
Requirements for update:
*) Server to upgrade
*) CH341A BIOS programmer
*) Hot air station
*) Soldering iron
*) New BIOS file.

First get the BIOS update file `B810Update.7z` linked to from this forum thread: https://forum.ixbt.com/topic.cgi?id=66:12091:13#13 .

Then open the server and use the hot air station to remove the BIOS flash chip.

When you have removed the chip solder it to the CH341A programmer:

Connect programmer to computer and install driver from CH341PAR.ZIP.
Run programmer software.

First it’s a good idea to read the existing data from the chip and save it, so that you have a backup in case the new bios doesn’t work on your specific server.
Then load the new bios file and write it to the chip.
After that you can solder the chip back in the server and try booting.

Inside a Nexa PER-1500

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I was looking for double pole relays suitable for mains voltage and noticed that one such relay is almost as expensive as a Nexa receiver, which got me wondering how remote switches does it.

I had an unused Nexa PER-1500 that I chose to disassemble and found that it uses a single pole relay, which to me was a bit unexpected since then you won’t know if it will switch the live or neutral.

Closeups of crud on ks10008 board

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I believe that some liquid have entered this board, most likely through the hole in the dvi connector, more specifically the hole from analog ground which has no metal pin.

Some close-ups using the usb microscope camera.

photo_2016-04-14_12-17-55

Part of board closes to the DVI connector:
crud-png

Another image close to the connector:
mix

A bit further from the connector:
nc1

Insides of the BizLink KS10008

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The BizLink KS10008 is an active DisplayPort to Dual-Link DVI adapter, supporting resolutions up to 2560×1600@60Hz.

It uses the following chips:

  • ST gm68020H DisplayPort receiver
  • 2x SiI7172CLU DualLink DVI transmitter

The factory bodge wire signifies quality.
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Insides of the BizLink KS10014(B)

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The BizLink KS10014 is an active DisplayPort to Dual-Link DVI adapter, supporting resolutions up to 2560×1600@60Hz.

It uses the following chips:

  • STDP4020 DisplayPort receiver (The same chip as in the Accell B087B-002B, B0087B-002B-3 and B087B-003J)
  • 2x SiI7172CLU DualLink DVI transmitter

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