Hey guys, basically the crack is I just bought 16 gb 4x4gb sticks low profile 1.5v corsair vengeance 1600mhz to replace my corsair dominator CMP4GX3WM2B1600C8 2x2gb kit
My CPU is 1055t 0 stepping (120w)
And mobo is the Crosshair IV formula
I have 2 xfx 6870's in Xfire
And xfx pro 850w single rail (seasonic oem) Psu
Now to the problem for the past year I have been running 4.1ghz stable
With these settings :
CPU volt : 1.45 (please. Note that under prime the voltage goes up to 1.5)
Dram :1520 MHz
NB/volt : 1.27v
Dram volt 1.65v .
Okay so I cleared the CMOS and popped in the new ram sticks
And booted checked they were working all clear.
Popped into bios disabled CnC,Turbo,C1E etc
And set up identical settings crashed.
I've managed a temp stable setting of 272 3.8 ghz 1440 MHz ram and identical settings to above running prime as we speak . Any advice on getting back to 4ghz ? Thanks guys in advance
I'm surprised the DRAM would need .15V over stock, though. If it does, it does, but you might be able to reduce it. My RAM is rated at 1600mhz CL8 1.65V, and I use 4x2gb, and it needs about 1.675V to be stable at rated speeds... so it's not that big of an increase.
i was surprised too tbh but what ever it needs it needs if i up the the NB more im kinda worried i might hit the thresh hold im not entire sure how much voltage it can take but its in the red at 1.3v maybe a slight bump in the ram voltage what ya think ?
9-9-9-25 are the the timings and 1.5v is the stock ram settings i have not touched the timings just the voltage. i just found a vid on youtube of some guy with an identical rig (almost) running stable at 4ghz so it can be done http://www.youtube.com/watch?v=YLjaqNwG9K0
i ended up just reverting back to my Dominator ram it may be only 4 gigs but it has tighter timings and overclocks like a dream also is faster in almost all the benchmarks i did at 4ghz vs a 3.8 ghz stable with 16gig of vengeance ram actually lost around 5fps in a couple of games. its a shame and a waste of 70 quid oh well live and learn.