DDR3 on 790i Ultra

[k4p84]

Hi all,

Right I have had some parts to upgrade my rig with for well over a year but it took a motherboard failure to prompt me to actually get round to the tear down and rebuild.

Anyways.....

The issue is ram related.

I have an XFX 790i Ultra board and a 4gb kit of OCZ Plat ram 1800 8-8-8-27 1.9v, kit number ocz3p18004gk

I can't get her to boot, I get into post then crash out and back round we go. The on board code says it is verifying ram when we crash and burn.....

Reading up I have now found out the 790i Ultra can be a pig when it comes to memory and may just not like what I have popped in, this is fecking annoying to say the least. XFX tech supports response was, well it should work, or words to that effect...

I bought myself an unbranded stick of DDR3 1.5v, I wanted to pop the memory timings in which meant I needed to get into bios which I could not do with the kit, one stick or two installed...

Great it can boot with one stick of crappy ram......

I have set the timings to 8-8-8-27 1T and 1.9v. Popped a single stick from the kit in and I still can not boot. I can get further into the post though, I can at least enter BIOS

Well does anyone have any ideas. I do not think the ram is faulty I just think it is the board being a pain in the ass. With it booting on 1.5v ram I am tempted to sell the 4GB kit and get a newer lower V kit as 1.5v is now standard whereas when I started higher voltage was basically all that was on offer.

All help is greatly appreciated

Regards

Ed

 

[Diablo]

I had an absolute nightmare getting RAM to play ball on my Striker II Extreme. The 790i is an awful chipset I'm afraid, and you will have difficulty getting it to run stable. However, first thing you need to do is to boot with one stick of RAM, update the bios.

Next step is to set the RAM timings to 2T, and set the speed down to below 1333. Mine would freeze up or refuse to boot at 1600, and needed a decent voltage across the NB (1.45V IIRC). If you want my advice, sell the board and get an old X48, or do a complete overhaul if you need SLI.