Post by D***@MadCow.net
Wasn't very dirty but cleaned filters & fans. Reseated SATA data
cables on both ends, video card and it's connector and some of the
other connectors on the motherboard.
Opened latches on memory cards, wiggled them and reseated & locked
Problem still exists. Cold started once then used restart which
failed on the 4th time.
Now I think the restart time (from entering password to the desktop)
displaying is longer.
Have 16GB RAM, in 4 - 4GB sticks. Is there a reason to swap their
position to see if the first one is flaky?
You don't use Windows as a paper towel for a "memory spill".
Bad memory damages Windows. It can corrupt the contents of Registry files.
(And in my case, it ruined two backups I'd made of the C: drive. They
both had verify errors and I couldn't restore from them.)
Testing and testing and testing, when you known bad RAM is present,
is not wise. If you're worried about OS contents (your data files
and so on), pull the drive from the desktop, take it to a second desktop
with *good functional RAM*, make your backup, then bring the drive
back. You'll be a lot happier than I was, if you do. If symptoms
go South on you, you'll have that one good backup waiting for
you on the other equipment.
This is the Windows 7 memory diagnostic. I was surprised, that a Windows
memory diagnostic I tested one day, actually worked. I wasn't expecting
it to be as capable as third-party versions.
However, memtest.org also has standalone media which I like
for a test. Takes about two hours or so to run a "complete pass".
Pressing the <esc> key causes the computer to reboot, when
you're satisfied with whatever answer the program gives.
Windows is not booted, while you're using this. In fact,
you could even have the C: drive completely unplugged
while this runs. I use this on new systems, before a hard
drive is connected.
If you scroll half way down the memtest.org page, there
are downloads that can make a bootable CD, a download
that will load the test tool onto a bootable USB stick,
as well as the traditional floppy image. (You can do the
media preparation on a known working computer.) I keep a floppy
next to my desk for the machines here. The machine I'm
typing on has a floppy drive. The newer computer, I use
a USB floppy drive, as the motherboard no longer
supports a floppy interface. The floppy version of memtest
still boots from the USB floppy drive.
In the case of my last memory failure, the results were
non-committal. Testing 4x2GB, I would get a couple errors,
proving I had [some] problem. Testing any combination of 2x2GB
or testing the 2GB sticks one at a time gave no errors!
Very annoying. I replaced all four sticks. The sticks (Kingston)
had been suspicious from day one, as with no memory Vdimm boost,
the chips ran warmer than I'm used to for memory. From
installation day onwards, I'd been running a fan over
top of those. And they still took a crap on me.