mobo/ram help

Hey all been awhile since I've messed with comps so I need a little help. I currently am running a s939 system with a dfi nf4 ultra d mobo and I am trying to add 2 extra sticks of ram but i cant get it to work. I think I remember these boards being really picky about how the ram is placed but I cant find the manual and couldnt find much help online.

I currently have 2 512 sticks of G.Skill PC4400 in there and I have 4 other 512 sticks laying around. The other 4 sticks are Nanya pc3200 x2 and 2 kingston sticks that Im not exactly sure about. Thanks for any help you guys can give me.

I have the same board, and it has given me fits with memory. Have you tried manually setting ram timings and frequency to "safe" values?

I.M.O.G. said:

I have the same board, and it has given me fits with memory. Have you tried manually setting ram timings and frequency to "safe" values?

Click to expand...

I dont really know much about ram honestly,is there somewhere I can read up on how to do that?

This old thread may give you some idea of what setting to use. You'll want to start based off of the timings your slowest stick of memory is rated for, then go from there.

http://overclockers.com/forums/showthread.php?t=379317

I used a program to get these specs on my ram not sure which numbers aare the important ones though.

The Nanya Sticks:
PC3200
JEDEC #2
voltage: 2.5v
frequency: 200 Mhz
CAS Latency: 3.0
RAS # to CAS #: 3.0
RAS # to Precharge: 3.0
tRAS: 8

JEDEC #1
voltage: 2.5v
frequency: 166 Mhz
CAS Latency: 2.5
RAS # to CAS #: 3.0
RAS # to Precharge: 3.0
tRAS: 7

And the GSkill sticks:
PC4400
JEDEC #2
voltage: 2.5v
frequency: 277 Mhz
CAS Latency: 3.0
RAS # to CAS #: 6.0
RAS # to Precharge: 6.0
tRAS: 12

JEDEC #1
voltage: 2.5v
frequency: 200 Mhz
CAS Latency: 2.5
RAS # to CAS #: 4.0
RAS # to Precharge: 4.0
tRAS: 8

When I have all four sticks in It just hangs on the Windows loading screen So I guess to I have to change it all though the BIOS? Thanks again for the help!