BCLK adjustments on Xeon e52690 v3

[italianrobot]

I've been looking into this for awhile now and couldn't find anything really to tell me wether or not a base clock can be adjusted on this xeon processor. I was looking into a build that could push this thing under water but I can't find any info on if it can be adjusted. If any E5 2690v3 owners could check or if they have knowledge into this matter all would be appreciated.

 

[Eximo]

That is certainly a hefty CPU. It certainly wasn't intended for overclocking. I don't think you can adjust the BCLK much on the Haswell line up. I think everything is more or less tied together. Only 1st Gen core and 6th Gen Skylake seem to have the unganged BCLK.

That said, if you manage to find an X99 board that offers multiple bootstraps (many Haswell did) then you might be able to set a 150Mhz BCLK or something, though that might be pushing it with the locked multipliers. If you disabled boost you might get away with it.

 

[italianrobot]

Yeah I was looking into that but I haven't been able to find any data on if you can even adjust it with the E5-2690 v3.

If anyone who owns one could let me know me know just by looking at their bios that would be awesome.

 

[Eximo]

I don't think you are going to find many owners of a 12 core CPU here. Tray price for that sucker is 2K. Enthusiasts generally stop at the i7 extreme series.

I have some X79 dual socket boards at work, but they are in Dell Precisions with 8 core high frequency chips and dual 12core lower frequency chips. The OEM BIOS certainly doesn't allow such shenanigans, but also aren't Haswell-E (missed that boat by about 6 months this refresh cycle) All Haswell standard machines though.

Actually ran into a lot of memory issues on the Dells. Getting a matched set of 16 ECC Dimms is apparently a hell of a job, had many failures where we ended up swapping the memory around to get fully populated boxes. Our engineers love them though, almost twice as fast as our x58 platforms.

 

[italianrobot]

I don't think you are going to find many owners of a 12 core CPU here. Tray price for that sucker is 2K. Enthusiasts generally stop at the i7 extreme series.

I have some X79 dual socket boards at work, but they are in Dell Precisions with 8 core high frequency chips and dual 12core lower frequency chips. The OEM BIOS certainly doesn't allow such shenanigans, but also aren't Haswell-E (missed that boat by about 6 months this refresh cycle) All Haswell standard machines though.

Actually ran into a lot of memory issues on the Dells. Getting a matched set of 16 ECC Dimms is apparently a hell of a job, had many failures where we ended up swapping the memory around to get fully populated boxes. Our engineers love them though, almost twice as fast as our x58 platforms.

Yeah basically we have a box of them from a scrapped design at work and was seeing if i could turn on e into a decent gaming/streaming clip editing monster but since most games don't take advantage of multicores I wanted to see if the baseclock is at least somewhat open to try and edge out so more cycles with the multiplier lock at a base x26 a BCLK 150MHz strap with turbo off would give me a beast of a system with water cooling.