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Testing my first overclock -- some questions, though

post #1 of 3
Thread Starter 
Hi,

I've got an i7-920 running ~3.3 ghz on an Asus P6T board, 6gb of DDR3-1600 (model # OCZ3G1600LV2G), etc etc.
I ran it with OCCT for an hour and everything looks fine initially but I have some concerns:

my ram does *not* like being above 1600mhz. Well, within a certain threshold; I think its at 1603 right now.
Seeing how the base clock increases the dram frequency I can either settle for 3.3ghz or 4ghz if I want to keep it within 1600 or
experiment with other base clocks and keep it below 1600. The latter seems reasonable and I don't think there will be a huge loss in performance if I'm running it slightly less than 1600.

The temps at 3.3 are within what I consider safe (peaks around 68C). My vcore is about 1.25v as is my QPI. I figured I would test things out at a lower vcore voltage and see what that gets me. Does a lower voltage necessarily = lower temps?

I'd love to get it beyond 3.3 but coming from 2.7 I'm pretty happy. Still have some long term stability testing to do.
I'd welcome any comments or thoughts regarding improved performance/temps. I have a hyper 212 cooler and my case is roomy enough for air flow; I'd like to see what I can pull off without resorting to more extreme cooling.

Thanks!
-- Mark
post #2 of 3
Yes vcore directly effects temperatures a lot, and you can probably lower your vcore quite a bit. my vcore is well below that at 3.6ghz. Memory frequencys have little impact on performance, don't base your cpu OC around keeping your memory at 1600, just try and get it as close as possible.
    
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CPUMotherboardGraphicsGraphics
I7 4790k 4.7ghz Asrock Z97 Extreme4 Gigabyte G1 GTX 970 SLI @ 1590Mhz Gigabyte G1 GTX 970 SLI @ 1590Mhz 
RAMHard DriveHard DriveHard Drive
16gb GSkill Sniper 2200mhz Crucial MX100 256gb Samsung F3 1TB Samsung F3 1TB 
Hard DriveCoolingCoolingCooling
Seagate 3TB EK Supremacy Evo EK Nickel VGA Block x2 w/ Backplates Alphacool UT60 480mm Rad 
CoolingCoolingCoolingOS
Alphacool XT45 480mm Rad Dual D5 Pump w/ Dual Pump Top Gentle Typhoon AP-15s x18 Win 7 64 bit 
MonitorMonitorPowerCase
Qnix QX2710 1440P + 1080P IPS secondary Benq W1070 Projector on 120" Screen Seasonic Platinum 1200w Corsair 900D 
MouseMouse PadAudioAudio
Logitech G9X Mionix Propus 380 ATH AD700 Creative X-Fi Titanium 
Audio
Logitech X-530 
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post #3 of 3
Thread Starter 
Cool, thanks for your reply.
I sorta came to that realization over the past couple days. Focus on where I want my base clock and just see how close to 1600 I can manage. I'm at 3.7ghz right now ( I haven't fully tested stability yet) and temps are hovering around 72C at full load. I'm going to start dropping down the vcore from 1.25v and hopefully get those temps under 70C. That or re-seat my cooler with better thermal grease.

-- Mark
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