Notices

Overclockers Forums > Hardware > CPUs > Intel CPUs
Intel CPUs
Forum Jump

Getting past 4.2ghz with 1600mhz ddr3

Post Reply New Thread Subscribe Search this Thread
 
 
Thread Tools
Old 11-21-09, 07:27 AM Thread Starter   #1
simviatoR
Member

 
simviatoR's Avatar 

Join Date: Oct 2009

 
Getting past 4.2ghz with 1600mhz ddr3


So I'm at 21x200 4.207mhz with memory at 2:8 (1602mhz target) - How can I raise the clock while keeping the memory target at 1600? I see I can lower the memory to 2:6 but that would bring my memory down to the 1200-1300 mhz range. Will that make any difference in performance? Or do I go and order some DDR3 1800mhz (or 2000?)

tia

-Dave

__________________
Core i7-2600k - 5009mhz @ 1.392v
MSI Z68A-GD80
EVGA GTX 680 Signature 2 edition 2GB
Corsair Vengeance 8gb DDR3 1600mhz
Corsair AX1200w
Corsair Obsidian 800d
simviatoR is offline Heatware Profile   QUOTE Thanks
Old 11-21-09, 07:40 AM   #2
redduc900
Super Moderator


 
redduc900's Avatar 

Join Date: Dec 2000
Location: WCG@home in Portland

10 Year Badge
 
Why do you want to keep the DRAM frequency (memory target) at ~1600MHz? Irregardless of what DDR3-1600MHz RAM you have, guaranteed it will run at a higher frequency at default voltage and timings. And even if it didn't, you could easily loosen the timings or increase the DRAM voltage to compensate for the higher frequency. As long as QPI/VTT voltage (1.15V default) and DRAM voltage are kept within 0.5V of each other, you'll be fine w/ a voltage increase over the default.


Last edited by redduc900; 11-21-09 at 10:40 AM.
redduc900 is offline   QUOTE Thanks
Old 11-21-09, 07:48 AM Thread Starter   #3
simviatoR
Member

 
simviatoR's Avatar 

Join Date: Oct 2009

 
Is that right? So it should go past 1600mhz without trouble?

So should i just keep bumping up the bclk until I get it where i want it, set timings to auto?

__________________
Core i7-2600k - 5009mhz @ 1.392v
MSI Z68A-GD80
EVGA GTX 680 Signature 2 edition 2GB
Corsair Vengeance 8gb DDR3 1600mhz
Corsair AX1200w
Corsair Obsidian 800d

Last edited by simviatoR; 11-21-09 at 08:16 AM.
simviatoR is offline Heatware Profile   QUOTE Thanks
Old 11-21-09, 10:41 AM   #4
redduc900
Super Moderator


 
redduc900's Avatar 

Join Date: Dec 2000
Location: WCG@home in Portland

10 Year Badge
 
Yes, just set the four primary timings to 8-8-8-24 (CAS, tRCD, tRP, and tRAS), and DRAM voltage to 1.65V; assuming these are the stock timings and DRAM voltage (just adjust according to the SPD.) Run Memtest after each bump in the BCLK, but by either loosening the timings to say 9-9-9-24, or bumping the DRAM voltage that RAM should reach between 1700 - 1800MHz or so. Just remember to also increase the QPI/VTT voltage in order to keep the 0.5V difference.

redduc900 is offline   QUOTE Thanks

Post Reply New Thread Subscribe


Overclockers Forums > Hardware > CPUs > Intel CPUs
Intel CPUs
Forum Jump

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Mobile Skin
All times are GMT -5. The time now is 08:00 AM.
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
You can add these icons by updating your profile information to include your Heatware ID, Benching Profile ID or your Folding/SETI profile ID. Edit your profile!
X

Welcome to Overclockers.com

Create your username to jump into the discussion!

New members like you have made this the best community on the Internet since 1998!


(4 digit year)

Why Join Us?

  • Share experience
  • Max out your hardware
  • Best forum members anywhere
  • Customized forum experience

Already a member?