-------------Here is something I read---------
The A7N8X and A7N8X Deluxe pre-Rev 2.0 boards are to be avoided (I doubt
anybody has stock any more), the E is a much newer board based off of the
Rev 2.0 Deluxe, I'd imagine.
-------------So hopefully you don't have pre Rev 2.0?
------------I don't think you would have.
-------------something else I read ---------------
Actually, your A7N8X-E Deluxe should have no problem running the memory modules at 400MHz. But maybe your BIOS timings have been set way too tight for your memory modules.
So, just set your SDRAM timings loose. Try 3-4-4-8. If that doesn't work, then it's very likely to be a motherboard problem.
(which you couldn't have since you've had several mb)
------------Here's another one I read-------------
Might start by downloading the H.D. diagnostics for both drives and run them. Might show somethings wrong with one or the other.
Then download memtest, make sure no corruption coming from the memory.
Check voltages in the bios, low volts, can cause problems as well.
Just a few quick things to check off the list.
-------------This one you've probably already sussed out---------
The Seagate Sata drives are very demanding on your PSU so be sure you have plenty of power on the 12v line. (don't know what WD is like?)
Another member said he ran the Seagate tools and it said he had a filesystem issue, someone then posted that the diagnostice program has a flaw in it. Not sure I am ready follow this opinion just yet.
--------- same talk different person------------------
Also, themorterman is correct; I use Seagate drives exclusively and I found out, some while ago, that they use +12 Volts only as their supply. So your PSU has to deliver more on the +12V rail than usual !
You could check this easily if you run StressCPU along with the HDD diagnostic and f.e. MBM
http://home.comcast.net/~wxdude1/em...d/stresscpu.zip
Sorry guys been busy...Ran Memtest, no problems...did cputest w/ MBM....got
case 21c
CPU 52c
+3.3 3.28
+5.00 4.52
+12.00 11.37
-12.00 -11.75
-5.00 -4.93
Your 5v is too low.
4.75 is the lowest spec for the 5v line on a PS.The cpu draws from the 5v line.
Is it by any chance an Antec ? ..we have seen quite a few posts here where the 5v slowly degrades on Antecs over time .
Do you have another PS you can try ?
your max. CPU temp is OK
your +5 V rail is way too low
your +12 V rail is low too (in most PSU 's this rail is coupled internally with the +5 V rail)
----------------------------My comment---------------------
The only thing I can think of is that when you up the settings to get your proper cpu size maybe your ram is going up or your agp or both.
The only time I've had that problem is when I've tweaked my cpu or I've tried to get more from my ram. Also I had a MSI board that wouldn't take Corsair? I had to buy generic cheapo ram to run it
I hope this helps - I can't think of anything else.
I reckon not that I'm right but maybe its related to ram or bios settings, since your bios on default is fine. I'd looking at the default settings for your ram and agp then up your cpu and see if there are any changes to your ram or agp settings.