Freezes in Vista and sometimes IRQL bluescreens in XP

My computer har a dualboot of XP and Vista Ultimate.
In Vista it freezes all the time, sometimes after 1 min, and sometimes after couple of hours. Even dont need to be doing anything to make it freeze.

Now, it has started to freeze sometimes in XP too. I also get sometimes a bluescreen showing an IRQL error.

Can it be that one of my 2x2GB ram is faulty?

I use XP Pro and Vista Ultimate 32bit
ERP (on PCI-slot) is 10
ECN (on motherboard) is 01

I run Raid 5 with 4 disks and Areca 1210.

Here is my spec:

Corsair Powersupply 1000W Black ATX/EPS, 140mm fan, SLI
MSI P45 Diamond, P45, Socket-775, DDR3, 2000FSB OC,X-FI,ICH10R,2xPCI-Ex(2.0)x16
Corsair TWIN3X 1600MHz DDR3, 4GB, DHX, 2x2GB, XMP (Intel Extreme), CL7-7-7-20
Intel Core# 2 Quad Q9550 2.83GHz Socket LGA775, 1333MHz, 12MB
Antec Twelve Hundred Gaming Case(
Zalman CNPS9700 NT Ultra Quiet CPU Kjøler, Socket 775/754/939/940/AM2
XFX Nvidia 9800GX2

Good advice.

CPU-Z
That will help you determine your Ram settings.

http://www.memtest.org/
memtest

oh ^^ its early in the morning here lol. CPU-Z helps me find the timings and voltages ;P Ill test that today or tomorrow.

thanks for help sofar guys

Ok, now ive been in BIOS: there the voltages and stuff for the RAMs are set to Auto.

Then i installed CPU Z. Here (in the SPD fan) the voltages shows as follow:


JEDEC#2 #3 and #4 shows 1,5V each.
XMP-1600 shows 1.900V

Any more info your need?
i got no clue of what alot of stuff in CPU Z meens ^^

The SPD tab shows the possible configurations for your RAM.

Pick one of those. The 1333mhz one would be good. Adjust all your RAM settings manually to match that.

How strange. The 533 are expected but then I would have expected 600 and 667.

Let's try a different approach. You also have a memory tab in CPU-Z. What does that currently say?

I have to wonder if your CPU is trying to run the memory at the 1600 (800) setting... That would not work because you are not supposed to go much beyond 1.65V.

*FSB: DRAM

Did not run memtest yet. IVe ran that befor a time without any errors.

So, i should go into my bios and change the auto setup of the ram's voltage til 1,5V?
Im not sure which of the config in bios to change ^^
its soo long since ive configured bios lol :|

im really glad for all the help.

This is what i think is of imprtance in bios where ram is located:

Under "Cell Menu"

1. CPU FSB Frequency (MHz) is 333 (max 800)

2. Extreme Memory Profile -> disabled

3. FSB/DRAM ratio -> auto

4. Adjusted DRAM Frequency -> 1067 (cant change)

5. DRAM Voltage -> auto
DDR_VREF_CA_A -> auto
DDR_VREF_CA_B -> auto
DDR_VREF_DA_A -> auto
DDR_VREF_DA_B -> auto

I would assume it would be DRAM voltage; 1.5v is hardly stressing RAM anyway; I need to run mine at 1.85v.

I still think a memtest would be the way to go though...

Now i have changed the DRAM Voltage to 1,5V

I tried to run memtest86 (latest version), but when it gets into the program from floppy, memtest in upper right corner goes from 0% to 100% in few seconds and then restarts the computer hehe.

Can this be because i use 2x2GB ram?

-thanks again

pretty sure
I downloaded the version 3.5 from www.memtest86.com

never happened before thou :S

the memtest86+ worked

i ran 16 cycles with no errors

I have the resent bios, and there was no fault with my HDDs

oh well.. i really appreciate all the help that i have gotten thou

i remember a case earlier i read earlier, that a person had run some stresstest on his memory and gotten 40 errors, and when he ran memtest86 he got none.

ill try it

So XP games are fine?

More voltage to the RAM could never hurt. I have to run mine at 1.85V (synced 1:1 to the FSB as well) to avoid problems, but thats more a nforce problem, although it could apply to you as well.