NIC blows up

NIC blows up

When I was writing the Build world on your
fast box, install on your slow box
article, the 486 box stopped working.  During
the make install, it panic’d and rebooted.  After that, I couldn’t
reboot the box.  It kept failing with:

Mounting root from ufs:/dev/ad0s1a
/: bad dir ino 2 at offset 0: mangled entry
panic: ufs_dirbad: bad dir

syncing disks.... 1 1 1 1 1 1 1 1..etc
giving up on 1 buffers

I found no joy in the mailing lists, so I decided it was time to upgrade the box.
  This 486 box was my original FreeBSD box.
  It had started on 2.2.7 and was in the process of being upgraded from 4.1-STABLE to
4.2-STABLE when it died.  Over the previous few weeks, I had had several unexplained
overnight reboots.  Often during the nightly processing.  I concluded there was
a hardware problem and that hardware replacment was a good idea.

The 486 is now a Cyrix 6×86 (120 MHz) with 64 MB of RAM.  That’s quite an
improvement over a 486 with 16 MB.

In the past someone had donated me a motherboard with the above new CPU.  I used
the RAM from my old NT workstation (which was also recently
because of hardware failure).  When I opened the box, I found that the
one of the two NICs had scorch marks and one of the chips had exploded.  I have no
idea when this happened.  I don’t recall any burning smell.  The card didn’t
smell burnt to me (yes, I did sniff the NIC…).

The pictures

nic1-thumb.jpg (4801 bytes)


nic2-thumb.jpg (5238 bytes)

The blown chip.

nic3-thumb.jpg (6047 bytes)

Different angle.

Leave a Comment

Scroll to Top