cMP OC

[karsten]

how are you overclocking it?

 

[HaypurTiryading]

Can we overclock multiplier locked dual socket X5680-90? Is this hardware based mod or which software did you used in Windows?

Also if we are oc the cMP in Parallels, will osx affect?

 

[h9826790]

Can we overclock multiplier locked dual socket X5680-90? Is this hardware based mod or which software did you used in Windows?

Also if we are oc the cMP in Parallels, will osx affect?

Only very few software can alter the multiplier on the spot (of course, I mean on cMP and in Windows). OP refuse to say anything about that, and I can’t quite remember which software works. But you can easily download most of them and test one by one.

And NO, parallel can’t OC the CPU.

 

[thornslack]

Given that the OP won't reveal how he is accomplishing this I still call this shenanigans.

 

[h9826790]

And regardless if we can really OC the CPU, obviously the performance gain is very marginal, not even 5% at this moment. The biggest issue, single core performance still not solved.

 

[Matty_TypeR]

If the overclock is only for Windows use u might as well have a pc and overclock it properly via bios.

Mac overclocking would be different, I don’t see how you can change multiplier and ram divider on fly, let alone cpu voltages and ram voltages for higher speed, memory speed increase should show nicely via fsb

 

[orph]

XTU will let you play with multiplayer and all core boost settings (1 core,2 core,3 core boost speed ect) in windows, not played with it as i dont see a huge point in windows.
i have no idea about the cpu VRM (i dont know what there rating's and temps are so they may be fine for some short benches but start a long render and idk what happens)

there's a massive topic on xeon x58 OC stuff 4-4.5 seems fairly easy to hit for a lot of people, if i can remember where it is ill dig out the link

https://downloadcenter.intel.com/download/24075/Intel-Extreme-Tuning-Utility-Intel-XTU-

edit
https://www.overclock.net/forum/8-intel-general/1489955-official-x58-xeon-club.html
https://hardforum.com/threads/1366-x58-xeon-enthusiast-overclocks-club.1820772/

i do not know any osx software to OC and >.> unless it's on a spare macpro if you go to far parts can brake (VRM ect) + i have no idea if ECC ram will limit things.

i think in pc land most have moved on to the unlocked xeon e5-16XX chips, 4-6c 8-12t and cheep online but id gess ryzen and i7 8700K has relay dented the interest

 

[LightBulbFun]

Gonna throw a nice spanner in the works

the W3690 does have an unlocked multiplier, that people have managed to change in software in windows using Throttlestop (People with dell workstations have done this to get a nice performance boost)

however I personally dont know if this works on the 5,1 and secondly if you are trying this on the 5,1 if you dont raise the Power limit in throttlestop

while you might See a nice 4.13Ghz overclock in CPU Z if you put any load on the CPU the clocks will just fall down as you hit the power limit, the 5,1 it self may also have a hard coded VRM Power limit preventing any meaningful overclock past 130W or so.

 

[UCDHIUS]

So.. here is some benches of BeamNG banana bench (4.1 GHz Overclock) vs Stock). For some that don't know, BeamNG is one of the most CPU intensive games out there due to the nature of the game.. and will always be CPU bound..

Although.. this does not show full performance. (OBS, does take some CPU power to record.)

It does show improvement, in CPU performance..

I can't show full performance unless I use external recording (ie phone) as OBS highly relies on CPU for recording and is CPU bound...

Cinebench attached also.. Again this is NOT full performance AS OBS uses a good bit of CPU power to record... but does show a gain in performance.


https://streamable.com/jqo0f (Stock BB)

https://streamable.com/iqjz3 (OC BB)

https://streamable.com/qunxz (Stock CB)

https://streamable.com/q61pb (OC CB
[doublepost=1535169269][/doublepost]

Gonna throw a nice spanner in the works

the W3690 does have an unlocked multiplier, that people have managed to change in software in windows using Throttlestop (People with dell workstations have done this to get a nice performance boost)

however I personally dont know if this works on the 5,1 and secondly if you are trying this on the 5,1 if you dont raise the Power limit in throttlestop

while you might See a nice 4.13Ghz overclock in CPU Z if you put any load on the CPU the clocks will just fall down as you hit the power limit, the 5,1 it self may also have a hard coded VRM Power limit preventing any meaningful overclock past 130W or so.

You can get it to hold 4.1 GHz easily once you know the ropes of throttle stop, it took me awhile but I found out how and what the 5,1 likes.

Its been stable since I started this thread, no crashes, no instabilities, no down clocks, no thermal throttling. 24/7 OC

Intel XTU will not allow it to hold anything over turbo boost as you can not adjust power limits.