OldGuy said:
Not fooling about any of this. It is the most frustration I have had in
years.
1) Remember the Linux Mint and the Macrium rescue disks allowed looking
at the C: drive and I saw all the files. Strange.
2) The MS original, and it is as marked by me the original, install disk
reports the C: Disk 0 as funny.
3) all BIOS voltages are stable. watched for a while and they jiggled
only a little bit.
4) I do have 4 Internal SATA HHDs. All show in BIOS
5) the DVD BluRay drives are on the secondary SATA ports. Both now show
in BIOS.
6) no IDE in there.
7) boot drive0 stayed stable at "good" DVD drive but all other boot
drives came alive (not disabled) but in wrong order.
I wonder if the BIOS detects that the "C:" drive is bad and turns on all
boot drives to allow a possible good boot from some other drive. Hmmm.
8) the MB is 1.5 years old as is the C: 500G drive. Battery bad?
9) the BIOS changes between boots. I do not cycle power between boots.
I have only cycled power twice through multiple boots. Back has always
been powered, never unplugged.
10) MB is a MSI 890FXA-GD65 military class. AMD quad CPU. 8GRam
11) I looked at every setting in BIOS all but one looked correct.
This MB has something called 2.2G Infinity. It was enabled so I
disabled it. Not sure what that is but I think it was enabled since day
one. MSI website only talks about 3G+Infinity and does not explain well
what that means. On US website. My interpretation is that my MB is not
the latest revision and the 2.2TB Infinity means that it can boot from
up to a 2.2TB drive to Windows. I do not use this so I disabled it now.
12) NO overclocking profiles. I do not need overclocking so I never do
that.
13) I use either F10 to save (Yes) and exit or the BIOS selection of
Save and Exit so I do always save.
14) I do not loose other BIOS setting when I turned off the power switch
but I did not unplug.
15) There is one large 1.5TB USB drive connected.
890FXA-GD65 manual
http://download2.msi.com/files/downloads/mnu_exe/E7640v3.1.zip
Board comes in several revisions. I selected revision 3.1
Drivers are available here, for downloading with another computer.
http://us.msi.com/product/mb/890FXA-GD65.html#/?div=Driver&os=Win7 64
*******
The manual says you have an "Overclocking Profile" storage feature.
The manual does not explain what settings are saved.
Such a feature, if triggered, could override the current CMOS RAM
contained settings. The interface for the Overclocking Profile feature,
does not show how it is triggered, and how the computer knows what
profile is currently being used. It should be passive, and only
come into play while you interact with it in the BIOS screen
(... load or save a profile).
That's the only thing that stands out right now in the manual,
to explain the weird symptoms. Your board is not as ordinary
as mine is (mine has no profile feature).
*******
We still don't have any evidence that the motherboard is bad.
If the CMOS battery is flat, as long as the power is switched on
at the back of the computer (and the PC is plugged in), any
BIOS settings should survive from one reboot to the next. The
+5VSB provides power in place of the CMOS battery - diode
ORing ensures one of the two power sources is used. If both
the PC power is completely switched off, and the CMOS battery is
below 2.4V, then you lose all the CMOS RAM settings. Since you
have an "Overclocking Profile" feature, with room to store
six profiles, that tells me the motherboard BIOS flash chip
is storing that info. And restoring a profile, can bring back
the settings (flash contents transferred to CMOS RAM). Of course,
you have to store things in the profiles, to be able to restore
them later. And if you flash upgrade the BIOS, that invalidates
all the profile storage (the settings are no longer aligned with
the data definitions of the new BIOS).
When you flash upgrade a BIOS, it's a good idea to do something
like "Load Defaults" or even use the Clear CMOS jumper, after
the flash. That can clean out the old CMOS contents, but you
then have to re-enter your boot order and other custom settings.
But I really don't think that would account for the settings
changing on their own. All I can see that would be responsible
at the moment, is the "Overclocking Profile" feature, or
maybe an actual overclocking failure detection that resets
the BIOS CMOS settings.
If it was my motherboard, I would be Googling "890FXA-GD65"
and looking for forums where they discuss bad BIOS versions,
and what version is a good one to load into the motherboard.
The MSI site, I think they have a forum. You can use an
external search engine, and try
site:forum-en.msi.com 890FXA-GD65
and see what pops up. This is an example of the discussions there.
http://forum-en.msi.com/index.php?topic=158332.0
What you're looking for, is evidence that your current
BIOS version has a bug in it.
*******
To override the boot order, you can press the "popup boot"
function key at startup. The MSI manual does not document
it. The <Del> key allows you to enter the BIOS. That
fact should be displayed on the first (startup) BIOS
screen. You can press the Pause/Break key, to make
the text stand still so you can read it. Normally,
a BIOS screen will mention the usage of two keys,
and we know one of the keys is <Del> to enter BIOS.
But we don't know what the other, popup boot key is.
To see the text underneath, you have to set
Full Screen Logo Display [Disabled]
I have computers here, where the key to press for popup boot
is F8 or F12. I don't know what MSI uses. If you figure out
what key to use for popup boot, you can then use the
cursor keys to select something to boot from.
Your manual also mentions an "Infinity" feature, for
supporting disk drives over 2.2TB. Since you don't
have any drives bigger than 2.2TB, you might check
and see if that can be disabled. With the PDF manual
open in Acrobat Reader, search for "2.2" as a string,
to find the BIOS setting. The word Infinity has a space
character embedded in it, which prevents search from
finding the word Infinity. Since I can't find any
other documentation in the manual, I can't tell you
what such a feature would be doing.
Paul