Xeon ram overclock

[porina]

I was looking around ebay and... I just bought an E5 2683 v3. 14 cores at 2 GHz base, Haswell era. Even without any overclocking that would perform roughly equivalent to a 6 core Skylake at 4 GHz for my intended uses. That'll do nicely for the price and is a lot more interesting still than low end Haswell-E or Broadwell-E. Of course, I still need a mobo, and I'm debating if it is worth going for a dual socket since they're roughly double the cost of a single. If I go single, I can just get X99... and that's where things get more interesting and confusing.

 

Cheapest mobo seems to be like Asrock X99 Extreme 3. It seems to claim support for ECC for Xeons although I'm not interested for this build. I have some extra ram from other systems anyway and can move it around without buying more. Does anyone know if Xeons can be used with OC ram? That is, running above 2133? I know it'll be fine at stock, but it would be much nicer if it also runs at higher speed.

 

I'll know soon enough once I get the bits and build, but would be curious to know before then.

[Apathetik]

5 minutes ago, porina said:

I was looking around ebay and... I just bought an E5 2683 v3. 14 cores at 2 GHz base, Haswell era. Even without any overclocking that would perform roughly equivalent to a 6 core Skylake at 4 GHz for my intended uses. That'll do nicely for the price and is a lot more interesting still than low end Haswell-E or Broadwell-E. Of course, I still need a mobo, and I'm debating if it is worth going for a dual socket since they're roughly double the cost of a single. If I go single, I can just get X99... and that's where things get more interesting and confusing.

 

Cheapest mobo seems to be like Asrock X99 Extreme 3. It seems to claim support for ECC for Xeons although I'm not interested for this build. I have some extra ram from other systems anyway and can move it around without buying more. Does anyone know if Xeons can be used with OC ram? That is, running above 2133? I know it'll be fine at stock, but it would be much nicer if it also runs at higher speed.

 

I'll know soon enough once I get the bits and build, but would be curious to know before then.

According to the Ark Data Sheet for that CPU. It only supports up to 2133. So I don't think it'll run higher than that. But if you did manage to get it to, I'd be concerned with stability. 

[porina]

2 minutes ago, Apathetik said:

According to the Ark Data Sheet for that CPU. It only supports up to 2133. So I don't think it'll run higher than that. But if you did manage to get it to, I'd be concerned with stability. 

If you look at the i7-6700k you'll similarly find it only lists 2133, but people have OC'd ram on them to 4000+. Yes, stability is a concern but no more so than on a desktop processor.

[NumLock21]

Bclk can oc to like 105Mhz, from there, ram oc by itself.

My 2620 v3 can only do 1866. If CPU Bclk oc to 105Mhz, ram get 1900ish mhz.

[porina]

1 minute ago, NumLock21 said:

Bclk can oc to like 105Mhz, from there, ram oc by itself.

My 2620 v3 can only do 1866. If CPU Bclk oc to 105Mhz, ram get 1900ish mhz.

So Xeon don't support ram OC through multipliers? I know the CPU clock wont be, and the bclk difference is too small to be significant. Will have to hope quad channel will be enough to make up for the slow ram.

[NumLock21]

1 minute ago, porina said:

So Xeon don't support ram OC through multipliers? I know the CPU clock wont be, and the bclk difference is too small to be significant. Will have to hope quad channel will be enough to make up for the slow ram.

Yep xeons are basically locked down to what Intel specifies. 

[porina]

1 minute ago, NumLock21 said:

Yep xeons are basically locked down to what Intel specifies. 

Understandable given market but hope they would cut some slack in the ram department like non-K consumer models.

[NumLock21]

37 minutes ago, porina said:

Understandable given market but hope they would cut some slack in the ram department like non-K consumer models.

People buy them for stability not oc.