Will 4x4gb lower oc'ing potential

I've gone from 2x2GB RAM to 4x4GB RAM and not had to change my 4.5Ghz overclock on my i5 sandy bridge system. With SB the overclock is normally only on the CPU so the RAM is happy running at stock with either configuration.
 
I've just gone from 8 to 16gb with an i5 2500k and a gigabyte ud4 p67 board. My gaming profile has the i5 running at 4.6ghz and the upgrade hasn't effected the oc.
 
Good to hear, I'm going from 8GB XMS3 to 16GB Vengeance today and both RAM sets have the same timings so my upgrade should be just a direct swap and nothing else :D
 
Filling all banks will put more strain on the mem controller, which may affect the stability of an OC, but as above, it also may not.

Don't read the above and expect it to work 100% tho :)
 
It worked 100% for me. My mobo reset the Overclock on first boot and notified me to go into the BIOS and reconfigure RAM settings as the RAM had changed so I just restored my OC profile (4.3GHz i5, 1:6 RAM ratio for 1600Mhz, stock timings) and BOOM! Back to normal :p

Absolutely no issues and in fact I find it snappier than 8GB as there's so much RAM free. I was copying and moving large downloads (10-15GB per download) from disk to disk and before the RAM used to fill up during copy operations and I'd get more disk thrashing but not any more and the transfer starts at ~230MB/s and settles down towards 145MB/s. This is on a SATA3 Samsung F3 & WD Green disks.

I have also manually set the Pagefile to 1024MB min/max.

I suppose it's all down to your mobo though on how stable it is. This RAM is at 1.5v so my temps have dropped about 2 degrees too due to less heat and better exhaust on the heatspreaders on these Vengeance sticks.
 
Well I've just ordered 16GB GSkill Ripjaws X 1600MHz stuff, to replace my 8GB Corsair XMS3.

So I'll let you know how I get on! Fingers crossed it's just a straight swap over.
 
Save your OC profile first as the OC will likely reset when the mobo detects new RAM modules!
 
I think it used too before the memory controller moved onto the CPU. For example on my P45 I can't overclock past 3.4Ghz with 4x 2Gb chips installed. But change that down to 2x2Gb sticks and suddenly I can overclock to 3.6Ghz or higher!

I don't think recent Intel i3/5/7 chips have that limitation.
 
Dropped my 16GB in last night, set new timings and voltages, and bam straight into windows at my old OC settings no fuss, passed LinX and game testing no problems. :)
 
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