|

| |
|

|
Autumn 2003
|
|

|
|
Just starting out... The new power supply is in place,
and I'm staring at all those cables and, as usual, worrying about how I'm
going to route them to avoid fouling the airflow and ruining the
cosmetics... When one has Perspex windows on both sides and the top of the
PC, there aren't many dark corners to hide the messy bits! Towards the end
of the rebuild I had a brainwave, and routed most of the thermal probes
through a ¾" split-loom pipe running down the left side
of the chassis - not only does it look rather sexy and industrial, but it
hides the mess of wiring really well. I'm rather pleased with that bit...
All the wiring went more neatly overall, actually, than the previous
attempts - I guess I've got the hang of it by the third incarnation.
|
|

|
|
The motherboard is in place, and the number of wires
seems to have doubled. Aaargh - are they breeding in there? In the bottom
right you can see the switches and power connector for the case lights, left
homeless and dangling since the original installation - later on, while I
was pausing for thought in between sessions of debugging the faulty RAID
arrays, I ripped them out and rebuilt them to wire into apertures in the
case's back panel - much nicer... Dangling over the bottom edge are the
Serial-ATA cables - the motherboard came with four nice red ones, but I'd
already bought a set of shiny silver ones to match my rounded IDE cables,
and as they were shorter and better suited to the distance in question I
decided to stick with
the Akasa ones.
|
|

|
|
Getting there... The bulk of the hardware is in place,
now, and the next stage would the the problematic disk drives. The light
grey housing in the top left, over the PCI slots, is a blanking plate
containing four USB2 sockets attached to the motherboard USB headers. This
isn't mentioned in the online specification of the motherboard, and I had
expected to use the headers to connect the case's front ports, but when I
unpacked this unit it seemed a very neat way of replacing my lost serial
ports quickly and easily... I may come back to wire in the front panel ports
at some stage, instead, but I don't seem to have much of a need for easily
accessible devices at present.
|
|

|
|
Everything is in place at this stage, if not very neat,
and I'm configuring the RAID arrays in preparation for copying my partitions
from the old drives. Around about now, I was just starting to get the first
sneaky feeling that something, somewhere, was badly wrong... I could
join two drives into a RAID-1 mirror, but as soon as the hardware started
imaging the data from one to the other, one of the drives would disappear
from the bus and the process would fail. All four drives apparently worked
well in a RAID-5 array, though, so it took me a while to realise that I
actually had a subtly faulty drive - and even then it took a further while
to isolate which one it actually was! In the end I swapped everything around
and created a mirror for the primary volume and a stand-alone drive for the
secondary - when the replacement drive arrives I can add it to the lone
drive and form a second mirror, at which point I'll probably also grow the
existing 136Gb partitions up past the
48bit LBA barrier to use the full 160Gb capacity of the disks.
|
|

|
|
I'd actually given up on the disk arrays temporarily,
here, and was concentrating on tidying up the cabling... everything is
routed, if not actually fastened down securely, with the exception of the
bundle of thermal probes in the bottom right of the photo. While I was doing
this, I was intermittently fiddling with disk drives, array volumes and
annoying software that would corrupt a partition while it copied it and
generally getting nowhere fast... I lost three days and a quantity of hair,
and was extremely pleased when I switched from Maxtor's proprietary
MaxBlast
3 software to the industry standard Symantec Ghost and everything
started to work noticeably better. With both partitions copied over from the
old drives I used Partition Magic to expand them up to just below the 137Gb
threshold - just to be on the safe side. I re-installed Windows 2000 over
the top of the existing OS to ease such a major hardware migration, then
upgraded to Windows XP a few days later when I was sure that everything was
stable. This process preserved all my data and 95% of my system settings,
which on a fully-loaded system is a real mercy. I was prepared to
re-install, if it became necessary, but I'm very glad that I didn't have
to...
|
|

|
|
The final version of this first draft, with the thermal
probes and a number of other odd wires neatly tucked into the corrugated
plastic pipe snaking down over the drive bays. In real life it catches the
glow of the nearby neon case light rather nicely, and looks very industrial
and elegant. The cabling is still very busy, but with so many wires
there's not a great deal more that could be done, so I'm happy enough. The
rather stiff, awkward S-ATA cables ended up firmly clipped to the base of
the case, and hopefully that will help prevent them from wiggling loose in
their sockets. I have a little more tweaking to do to route the thermal
probes and a few other oddments, which will wait until my replacement disk
drive arrives, but for now it's done. Phew!
|
 |
 |
|
And there we are! 95% complete and safely back on my
desk, to the great relief of all concerned! It was a tense and tiring week,
but in the end I'm left with a thoroughly kick-ass PC, probably one of the
fastest in its class, and one that should keep me going with minimal
maintenance for as long as I can keep my fiddling, tweaking fingers away
from its insides. Most informed observers estimate that time period to be
measured in weeks... :-) |
|
Thanks are definitely due to Ros, who soothed my troubled
brow when things weren't going so well, made polite noises every time I
showed her some odd bit of neatly-sleeved cabling, and put up with barely
seeing me for a week while the work was in process. It can't be easy living
with a techy when the upgrade fever takes hold, I'm sure...
More thanks to tech site Whining Dog for a pair of very
informative
articles on building a SMP system based on Supermicro's X5DAL-TG2
motherboard, which acted as a reality check on my basic specification, and
also to online suppliers RS,
Action2K and
Frozen CPU for unusual electronics
oddments - without which I would have had to bodge and make-do even more
than I usually do! They're all good sites, and well worth a look.
Finally, special thanks to
Hamiltone Ltd for
stepping in to supply the motherboard when my original supplier, Scan, let
me down badly - especially when so many
other online suppliers didn't
even bother to respond to my panicked enquiries! A big thumbs down to Scan,
too, for thoroughly jerking me
around over the motherboard - they are a classic example of a company
who's online stock levels bear no absolutely resemblance to reality, and
who's customer service leaves
an equal amount to be desired.
|
|