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Need help with memory overclocking.

post #1 of 8
Thread Starter 
Hi, I have the following ddr3 memory :
http://www.corsair.com/en/vengeance-16gb-dual-channel-ddr3-memory-kit-cmz16gx3m2a1600c10.html

paired up with a sabertooth fx990 r2.0 and a fx8350, im not looking to overclock cpu at the moment, just memory... memory runs at 1600 10-10-10-27 as default (product web page says it runs 10-11-10-30), i would like to make them reach 1866 10-10-10 or 1600 9-9-9, but everything i tried makes the system unbootable, im newbie overclocking with asus and uefi bios, any advice or should i leave it as default? redface.gif


post #2 of 8
You'll have to play around with voltage and timings to get higher clock speeds. As for lower timings on 1600 you'll want to do them one at a time. So lower one of them by one and see if you can boot. Run some stability tests then go back in BIOS and lower another.
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Hurricane Venus
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post #3 of 8
Thread Starter 
Thank you, do you know any tutorial related to ocing memory on asus uefi bios? im quite lost with so many features... my model is a sabertooth 990fx r2.0 redface.gif
post #4 of 8
http://www.hardwaresecrets.com/article/152

Heres a general guide from hardware secrets. May be from 2005 but the concept is the same.

Lowering timings is the best way to get better performance. Most good branded RAM rated for say 1333mhz/1600mhz can go higher.

My Eudar RAM (some cheap generic RAM) can be overclocked to 1600mhz, rated at CL9, I have taken it down to CAS 8. May need a bit more voltage, but generally branded RAM should be able to go higher.
post #5 of 8
Thread Starter 
happysmiley.gif thx, as soon as i have some spare time i'll give it a try.
post #6 of 8
How to lower ram timings: lower the 4 settings cL,trcd,trp,tras) 1 setting at a time.one notch at a time .lower it..reboot..see if post..lower 1 more..reboot..etc..until you don't POST..then go back to the last one that worked..this will put you in the ballpark.
 
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Thuban Powah!
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cheap! Newegg box panel ibeats with onboard. 
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post #7 of 8
^ This.

You can directly check your RAM is working nicely with memtest86+ smile.gif
post #8 of 8
^ That being said, I have heard of not so good overclocking results with the new 1600 CL10 Corsair RAM,especially in large sizes. All you can do is try. Give the CPU/NB a little bump in voltage too.
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Amelia
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Professional
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RCPC#1
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CPUMotherboardGraphicsRAM
Phenom II X6 1100t MSI 890FX GD65 MSI Radeon HD5670 GSkill RipjawsX DDR3 PC3 12800 2x4GB CL8 
Hard DriveOptical DriveCoolingOS
WD Black 1TB SATA III Samsung BD Zalman 9900MAX Windows 7 64 Professional 
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AOC 22" LED Logitech Kingwin Lazer Platinum 500w Fractal Design R3 
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