My system has been randomly hanging when using the AUTO settings in the bios , while having SLI ready memory set to "expert". the gskill website does not have settings for that particular mobo, so what specific settings should I be using to avoid such hang ups? Running it in sync mode (667 MHz) does not make the system hang, but I really want to make full use of my RAM.
 
Asus P5N-T Deluxe
QX9650

What voltage do you have it set to.

ive set it to 2.03 now

So you have Gskill SLI ready memory at what size,speed, what is the stock timing and voltage.

4GB, 1066MHz DDR2, stock no. F2-8500CL5D-4GBPK as per title

If this is the memory you have it's not SLI ready http://www.newegg.com/Product/Prod [...] 6820231166 It shows you what chipset it favors in the spec's, and it looks pretty fast stock to me.

thats the memory i have, but pc wizard tells me it is sli ready, and in fact, when i set sli ready to disabled in the bios, the system hangs everytime even when putting in the settings for voltage to 2.03 V.
 
Ive set it to 2.05V now, but maybe i should just copy and paste whatever pc wizards says about the EPP profile #1:
 
EPP Profile #1 : Full Performance  
Voltage Level : 2.1V  
Address Command Rate : 2T  
Cycle Time : 1.875ns @533.33 MHz  
CAS Latency (tCL) : 5 clocks  
RAS to CAS (tRCD) : 5 clocks  
RAS Precharge (tRP) : 5 clocks  
Cycle Time (tRAS) : 15 clocks  
tRC : 48 clocks  
tWR : 13 clocks  
 
and use those as bios settings.
 
maybe then i wont get any more random hangs.