So, here is my system--
Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz
Asus P5Q DELUXE
RAM currently (1) DDR2, PC2-6400 (400 MHz), 1024 MBytes, A-Data Technology
GPU GEForce 9800 GT
PSU Antec earthwatts EA-500D 500W

It BSODs and reboots once a day on average. I've traded ram, graphics card, & PSU. I just read on this forum how to keep it from rebooting on BSOD, so will have that info shortly. Here is the error from my system event log

Event Type: Error
Event Source: System Error
Event Category: (102)
Event ID: 1003
Date: 9/3/2009
Time: 1:08:57 PM
User: N/A
Computer: CLEVE
Description:
Error code 1000000a, parameter1 95e4615c, parameter2 00000002, parameter3 00000001, parameter4 80523729.


Data:
0000: 53 79 73 74 65 6d 20 45 System E
0008: 72 72 6f 72 20 20 45 72 rror Er
0010: 72 6f 72 20 63 6f 64 65 ror code
0018: 20 31 30 30 30 30 30 30 1000000
0020: 61 20 20 50 61 72 61 6d a Param
0028: 65 74 65 72 73 20 39 35 eters 95
0030: 65 34 36 31 35 63 2c 20 e4615c,
0038: 30 30 30 30 30 30 30 32 00000002
0040: 2c 20 30 30 30 30 30 30 , 000000
0048: 30 31 2c 20 38 30 35 32 01, 8052
0050: 33 37 32 39 3729

I can post a minidump also.
Any help would be much appreciated. Thanks.

When exactly does it BSOD? is "Driver_IRQL_Not_Less_Or_Equal" written on the BSOD?

0xA errors are caused by either hardware or drivers attempting an IRQ Level that they shouldn't. Looking at your specs I notice you are running A-Data RAM in an Asus motherboard.

Asus boards are notorious for being picky about what RAM can be installed on each and every board model that they have. I suggest going to Asus' website, find you model # and see if A-Data is one of the recommended memorys suited for your P5Q DELUXE.

Thanks for your replies, I'll look into the ram brands. I had kingston in there for a long time also. The blue screen always went by to fast, yesterday I learned how to stop the reboot. Now I'm waiting for it to blue screen again. It seems pretty random, either gaming or surfing, and rarely when it is idle. I ran prime95 and the 3rd and 4th cores get a rounding error in the first couple minutes. Any other info I can provide?

*** STOP: 0X00000024 (0X001902FE, 0XF7A59A74, 0XF7A59770, 0XF7396956)

*** NTFS.sys - Address F7396956 base at F731B000, datestamp 45CC56A7

Also, we've formatted and reinstalled twice and switched HDs also.

0x00000024: NTFS_FILE_SYSTEM
A problem occurred within NTFS.SYS, the driver file that allows the system to read and write to NTFS file system drives. There may be a physical problem with the disk, or an Interrupt Request Packet (IRP) may be corrupted. Other common causes include heavy hard drive fragmentation, heavy file I/O, problems with some types of drive-mirroring software, or some antivirus software.

1. Run ChkDsk.

2. Do a harddrive diagnostic scan.

I looked at the approved ram list on the ASUS site. The Adata ram is not supported, and neither is the kingston I tried before. I have tried chkdsk, but not the diag. scan, so will try that and I will get some other ram. Thanks again

Now I have the one Jawshh Mentioned above.

IRQL_NOT_LESS_OR_EQUAL

STOP: 0X0000000A (0X3DBEFC80, 0X00000000, 0X80545C1D)

Hopefully I can go get some new ram today. Thanks guys.

I am not sure if it is the RAM. Try borrowing some RAM before buying new one.

That would be pretty hard to borrow someone's RAM but yea, always test before buying.. Try taking out your RAM and switch them around.

0xA is IRQL_NOT_LESS_OR_EQUAL

0xD1 is DRIVER_IRQL_NOT_LESS_OR_EQUAL

Since it is an 0xA you are looking at either hardware or a driver attempting to address an IRQ Level it shouldn't. 0xA errors can occur with faulty memory as well as other things.

STOP: 0x0000007E (0x00000005, 0xF470B5DD, 0xF7A79B20, 0xF7A7981C)

ADIHdAUD.sys - Address F470B5DD base at F46EF000, datestamp 47e7b5cc

maybe sound card driver?

Here is information concerning driver ADIHdAUD.sys:

Product name: SoundMAX Digital HD Audio Driver

Description: High Definition Audio Function Driver(Release Candidate 1)

Manufacturer: Analog Devices, Inc.

* So, yes, try updating you audio drivers, but if the memory is not functional in your mobo I'll be suprised if you don't have further issues. However, stranger things have happened...

Can't find an updated driver yet, but I uninstalled them for now. Waiting for another blue screen...No RAM yet but maybe I'll have time to get it tonight

If this is onboard audio go to your motherboard manufacture's website and find your exact model. Update from that website.