Originally Posted by adamlau
You mentioned Deneb
. Unganged. But that was with a Mushkin module. I have hit suicide runs of 2006 MHz several times on the STT sticks (4 x 2GB).
With both the Mushkin 996902 and STT sticks used within the confines of my setup, voltage has been a key factor in being able to hold a stable memory overclock. For example, the 996902 modules will not hold 5-8-5-18-23 1T without at least 1.725v.
Well I used deneb and overclocked ram with it long before there was ever a 970 X4. Theres still tonnes of users that have the 955 and 965, my apologies.
With every model they change the IMC, which changes how the ram can be overclocked. The 970 X4 is obviously the most recent deneb IMC revision. The highest binned cores combined with an IMC that was either improved or slacked off a few timings in order to support 1800MHz+
Most PSC chips, voltage only comes into play when passing a certain clockspeed. I can run all the way up to 2240MHz like I did in the OP, with no voltage increases. The only reason I had the voltage increased was to see if it could provide me with more headroom. All sticks are different, some like more than others. But PSC should not be run above 1.75V on air as it won't gain much benefit and will just add heat to the ram. It will also degrade or kill your ram after awhile above that voltage.
Originally Posted by xd_1771
Really? What do you mean, is it a C4 revision or a variant of the E0 revision?
Nah the whole chip isn't a new rev. Just the IMC.
It's still a highly binned Deneb C3 , with an IMC that has been slacked off to allow for higher memory SPD support.Edited by Slappa - 12/11/10 at 11:00am