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Overclock limitation with Z68 & Ivy Bridge
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Caporegime
I got that issue with my 3570K on that board.
Found it out on Monday - http://forums.overclockers.co.uk/showpost.php?p=21750245&postcount=26
Found it out on Monday - http://forums.overclockers.co.uk/showpost.php?p=21750245&postcount=26
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Soldato
Cool.... Thanks guys
Does it affect all Z68 boards ?
Does it affect all Z68 boards ?
Caporegime
Only ones without a UEFI.
Soldato
Interesting... Remember that Asrock ?
I still have it and it has UEFI right ?There's a BIOS upgrade for it so I might check to see if it too is affected.
Caporegime
It does have a UEFI, thought you would have burned that board by now?
Soldato
LOLolol .... it's the misses machine
Soldato
Nice what's your overclock ?
4.6Ghz
vcore is set to 1.315v and it goes to 1.320v under high load.
LLC is set to level 1
I did have it running at slightly lover voltage than that but it dropped a thread on P85 about 4 hrs in.
Heat isn't a big problem at 1.3v with the exception of the linpac stuff.
P95 on the small fft's can get to about 80c, 75c or so on the larger ffts.
I haven't installed a mega heatsink, i am using a titan fenrir
The pcie slots are both running at 8x gen 3 reported by the NV driver with a pair of 680's installed.
There doesn't seem much of an IPC increase a few % at best nothing you would notice really.
Did a quick heaven test at the 1920x1080 settings being used in the heaven bench thread and i saw a nice increase over the 2500k which was in there
seems PCIe2 at 8x was holding the 680's back slightly and the move to gen 3 lets them breath better.
scores went from 3625 to 3905 so quite a significant increase.
This is in the same ballpark as the x79 performance with the 680's
This board and chip is going to my nephew for gaming i am just having some play time with it first
Edit: No my nephew is not getting the 680's, he is getting my old 470's which served me well.
I moved the 680's from my own gaming rig for experimentation only.
Was a usefull test though.
vcore is set to 1.315v and it goes to 1.320v under high load.
LLC is set to level 1
I did have it running at slightly lover voltage than that but it dropped a thread on P85 about 4 hrs in.
Heat isn't a big problem at 1.3v with the exception of the linpac stuff.
P95 on the small fft's can get to about 80c, 75c or so on the larger ffts.
I haven't installed a mega heatsink, i am using a titan fenrir
The pcie slots are both running at 8x gen 3 reported by the NV driver with a pair of 680's installed.
There doesn't seem much of an IPC increase a few % at best nothing you would notice really.
Did a quick heaven test at the 1920x1080 settings being used in the heaven bench thread and i saw a nice increase over the 2500k which was in there
seems PCIe2 at 8x was holding the 680's back slightly and the move to gen 3 lets them breath better.
scores went from 3625 to 3905 so quite a significant increase.
This is in the same ballpark as the x79 performance with the 680's
This board and chip is going to my nephew for gaming i am just having some play time with it first
Edit: No my nephew is not getting the 680's, he is getting my old 470's which served me well.
I moved the 680's from my own gaming rig for experimentation only.
Was a usefull test though.
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Soldato
Nice ! Thank you PCZ