Hi Richard,
On Sunday 15 January 2006 21:27, Richard King wrote:
> Hi Derrick,
>
> Re your eprom programmer problem, look again at this for the
> USB/serial cable:
> http://69.93.17.252/support/bb/messages/14/14314.html?1132340680
> You could also look at a COM-port on a PCMCIA card.
Beat you to it........ That is exactly what I did. Mine has two
flexible leads with a male "D" on the end. The connector on the card
is a bit naff though. The other thing is that Win sees comms 3 & 4.
Didn't suss it straight away though, and had to tell the software to
use comm 3 instead of the default com 1
> Concerning ESR, I changed 4 caps around the CPU about a year ago - no
> nasty sequels! ESR is very critical for power supply parts, so I
> might get a problem with this latest repair. I go to the PC shop 1st
> thing tomorrow!
There is a bit of leeway at 100MHz, about 25% less at 133MHz !!
> As for pumping the solder out of the holes, I had no success with
> this mobo the first time I tried. It's not lack of practice!
Good equipment helps. I have a vacumn pump soldering iron as well as
normal ones. However a tip. Suck from the other side of the board
from the soldering iron. Its a lot easier that way !!
> In the past, I have unsoldered & re-used 40-pin ICs, & stuff from
> 4-layer pcbs, but for my own PC, I am reluctant to repeatedly heat up
> the holes & poke around with a 60W soldering iron - you can lift
> tracks that way, but YMMV! I have also used a gas blow-lamp to remove
> parts from scrap boards - works great!
Yes I agree, it is very easy to damage and lift tracks, even with a hot
air tool. Problem is by the time you see the lacquer boil it often too
late.
> If I could be bothered to do "a proper job", I could make a fortune
> re-furbishing old mobo's!
I don't know about a fortune, since most people won't pay the labour
costs to have their computer repaired.! They seem to want to dump it
and buy a new one !!!!! Trouble is credit is too easy to get
nowadays.
> No Windows operating systems were killed or injured during the above
> exploits!
>
> Regards,
>
> Richard.be
> Yes thats one problem I discovered on my new Dell
> Laptop................ No comm ports. And (USB Issue) My programmer
> won't work through the USB to serial converter either !!! Doh.
Ok you made me admit it....... The first thing I did when I got my new
Dell, was to put Linux on it, and Open DOS. So it now triple boots.
--
Best Regards:
Derrick.
Pontefract Linux Users Group.
plug at play-net.co.uk
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