Thanks all for the suggestions. When I returned from work yesterday I spent
more time with the problem and now understand it better.
Its not the SSD. If I run the SSD as a secondary disk the garbage is gone. The
only time I have the garbage is when the SSD is the primary boot disk and the
system begins the boot process; then its there and stays.
Just for grins I booted with the SSD and let it finish the boot. I then
unplugged the SATA cable and the garbage was still there. I then unplugged the
power to the SSD and the garbage was still there. So I conclude that its my
motherboard making the garbage when I boot using the SSD! This is just another
one of those computer mysteries that gets fixed by spending money to buy a new
computer.In my case, the old reliable Hitachi hard drive goes back in and I'll
use the SSD for my daughters laptop.
I spent a lot of time to get this computer quiet in the ham shack. I use it to
drive my rigs at times for MS and Wspr so all interconnects are isolated with
opto-isolators and transformers. The last of my noise problems were fixed when
I blew a power supply and accidently replaced it with one that was completely
radio silent. Since then I have purchased a sufficient quantity of power
supplies of the same type so I can keep this puter running till I or the
motherboard gives out!
73's,Greg
Message: 1
Date: Tue, 26 Jun 2012 03:36:33 -0700 (PDT)
From: Greg Chartrand <w7my@yahoo.com>
Subject: Re: Topband: Noise in the Shack - A new noise!
To: topband@contesting.com
Message-ID:
<1340706993.42910.YahooMailClassic@web120703.mail.ne1.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Last month I began a?computer?up-grade process at home and work by using solid
state drives (SSD) in both laptop and desktop systems. The upgrades have been
very?successful providing a significant performance increase and extended
battery life.??
The last upgrade was my ham shack desktop system that I rebuilt with a new copy
of Windows 7. All seemed well until I ?turned the rig on and heard garbage
and?multiple?birdies across the lower 50 khz on 160.?
I was distracted for a week trying to recover a lost disk but I put the ?SSD in
place again yesterday. This time I wrapped the SSD in aluminium foil and put 2
clamp on cores on the SATA cable. I fired up my system, and the extra measures
had no?noticeable improvement on the birdie?situation. The?
birdies??appear as soon as I power up the drive.
?I doubt if I will be able to remove the noise so this is a warning to those
who may consider the same upgrade to their hamshack computer. My computer with
the old?fashion?Hitachi hard drive contributes zero noise to my receiving
capability on any band so SSD's are not in my future!
Greg
---------------------------------------------------------
Greg Chartrand - W7MY
Richland, WA.
DN-06IF
W7MY Home Page:
http://webpages.charter.net/w7my/
------------------------------
Message: 2
Date: Tue, 26 Jun 2012 07:39:27 -0400
From: Pete Smith N4ZR <n4zr@contesting.com>
Subject: Re: Topband: Noise in the Shack - A new noise!
To: topband@contesting.com
Message-ID: <4FE99F6F.2060508@contesting.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Don't be too quick to give up on the idea of solid state drives, Greg.
I know several active hams who have had these installed for some time
without any of the problems you experienced. There's no logical reason
why these drives should be any more or less noisy than any other memory
in your computer.
I would check your power supply, in case the line filtering components
were left out to save money, and if so, get yourself an inexpensive
Corcom line filter. Try disconnecting keyboard, mouse and monitor
cables one at a time to see if the noise is getting out that way. Try
grounding the case of your computer to the same single point ground as
your transceiver, also making sure that the ground bus of your
motherboard makes good electrical contact to the case.
In five years or less, I suspect you will not be able to find a computer
*without* an SSD.
73, Pete N4ZR
The World Contest Station Database, at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at
reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000 and
arcluster.reversebeacon.net, port 7000
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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