1600Mh/1800Mhz/2000mhz - DDR3

[THERESONATOR]

I'm looking at getting a Asus Rampage Extreme II and some of these x58 motherboards and also some of the x48 motherboards say in their product description that they support these faster speeds for DDR but with the OC letters next to them. I know that OC stands for Overclocked.

What I want to know is:

If I were to insert 1800mhz DDR3 ram on any one of these motherboards that say they support it (even saw one or two that said they support 2000mhz "OC"), would they work instantly, or would I have to go into the BIOS and set it up so it worked that way? AFAIK, that is impossible, since the BIOS will not load unless I have working DIMMs. So I would need the lower Mhz memory to go into the BIOS and then change the settings to OC at 1800mhz or 2000mhz or whatever and then stick the OC sticks in? What? That can't be.

So please explain.

TIA.

 

[Yellowbeard]

The modules are designed to boot and run at conservative JEDEC spec timings based on your CPU. So, once you boot you will need to either enter the RAM timings, voltages, and frequency manually or, use the XMP profile.

 

[DSF]

What Yellowbeard said is true. That's the way things are supposed to work. However, in my experience and the experience of others, it doesn't turn out that way 100% of the time. Once in a while you'll get a stick that just won't boot unless you use some compatible RAM to boot up, then manually alter the settings and swap the faster RAM in.

Either way, why DDR3 with a Core2 system?

 

[Yellowbeard]

Originally posted by: DSF
What Yellowbeard said is true. That's the way things are supposed to work. However, in my experience and the experience of others, it doesn't turn out that way 100% of the time. Once in a while you'll get a stick that just won't boot unless you use some compatible RAM to boot up, then manually alter the settings and swap the faster RAM in.

After the debacle with Micron based memory and the P5B series boards, we work a LOT harder at avoiding this. With the DDR3 voltage being so low, it's not as much of an issue as in the past.

Originally posted by: DSF
Either way, why DDR3 with a Core2 system?

If I read it right, he's going X-58.

 

[DSF]

Originally posted by: Yellowbeard

Originally posted by: DSF
What Yellowbeard said is true. That's the way things are supposed to work. However, in my experience and the experience of others, it doesn't turn out that way 100% of the time. Once in a while you'll get a stick that just won't boot unless you use some compatible RAM to boot up, then manually alter the settings and swap the faster RAM in.

After the debacle with Micron based memory and the P5B series boards, we work a LOT harder at avoiding this. With the DDR3 voltage being so low, it's not as much of an issue as in the past.

Originally posted by: DSF
Either way, why DDR3 with a Core2 system?

If I read it right, he's going X-58.

Good to know that it's not as much of an issue with DDR3.

As far as the X58 thing, I see now. I just saw X48 and for some reason that's all I picked up on.