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Timing inquiry

post #1 of 3
Thread Starter 
I am running 2 sets of ram one set runs at 5-5-5-15 the other runs at 4-4-3-15 how do i split the difference and get back to 1:1 and get out of 15:16.Ser one OCZ DDR2 PC2-6400 Platinum set 2 is Corsair Gaming Memory CGM2X2G800.
post #2 of 3

The 15:16 is due to the difference between the clock speeds of the memory and the FSB.  I see that you have an nForce 750i SLI motherboard, and if I remember correctly, then I think that achieving a 1:1 ratio was not nearly as important as achieving the tightest timings.  I had an nForce 680i SLI board and I always had a ratio like 15:16, but I never had any problems due to not having a 1:1 ratio.

 

I think that this was just exclusive to the nForce chipsets because I kind of remember people saying that it was more important to shoot for a 1:1 ratio if you had an Intel chipset as opposed to an nForce chipset.  So, I never made any attempt to get a 1:1 ratio (plus, a 1:1 ratio would have given me an overclock for both my CPU and my memory that I didn't want).

It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #3 of 3
Thread Starter 
Seems like if i try to go 4-4-4-15 or anything tighter then 5-5-5-15 i get a bad post. If i over volt the Corsair ram 1.9v to run 2.1v to run stock with the ocz will it hurt?
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