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help oc'ing Corsair Vengeance to 1600mhz!

post #1 of 9
Thread Starter 
First time overclocking, had no such success in oc'ing CPU stable on prime95.

Followed some instructions in this forum and others and dissabled everything in PC health status, virtualization and I'm running an 8120 on my ga 970a d3 (rev 1.3) and have tried overclocking RAM to 1600mhz Did not boot! now running at 1333mhz. DPC lantency checker over 5000 micro seconds (idle) running in XP pro x86.

Temps are not an issue as my rig is close to a window at about 18 degrees celsius. All stock cooling with panel off.

Currently my CPU oc'ed to 4Ghz unstable reading from BIOS at 1.328 volts. All voltage control is automatic in BOIS F11. Should I try increasing the DRAM voltage control and set timing settings manualy?

mobo: GA 970A D3 rev 1.3
ram: CV CMZ16GX3M4A1600C9B 4x4 ver 8.16
cpu: FX 8120 3.1Ghz
post #2 of 9
isnt that set of ram supposed to run at 1600mhz? not sure why its running at 1333. in your bios, set your ram to xmp mode. that should get it running at 1600
post #3 of 9
Thread Starter 
That's another problem, cannot find extensible metadata platform in bios. wouldn't it be DRAM EOCP?
Edited by Jos8coreHead - 6/6/13 at 11:25pm
post #4 of 9
Thread Starter 
Tried oc'ing using EOCP at 1600mhz and running voltage at 1.515, 1.525, and 1.535 with no luck.

Now I cleared my CMOS everything back to stock. now you said profile? might have seen that in EOCP so I selected profile1 and auto voltage control and now I'm at 1600mhz on all my OS's. Fixed! smile.gif

All I want to do now is reduce the lanency below 100us under heavy load.
post #5 of 9
I have the same motherboard (GA-970-D3) and a 8150. I bought four 4gb stick of Corsair Venmgeance 1600 9-9-9-24. I installed it and it defaulted to my old memory specs (1333 9-9-9-24).

I re-set the memory to "manual" in the bios and chanbged it to 1600 and it would not boot (received that your computer will not boot due to overclocking error).

So I re-set the ram to looser timings (1600, 11-11-11-29). Now it boots and runs at 1600, albeit with crappy timings for 1600.

Here is the rub, now CPU-Z shows my CPU running at 3600 MHz instead of 4000 MHZ. CPU-Z Validator4gHz.pdf 197k .pdf file .

Why would my CPU clock drop after increasing my memory speed?
post #6 of 9
CPU-Z Validator3.6gHz.pdf 194k .pdf file

Current stats with RAM updated to 1600 (and timings dropping below the Corsair XMP).

I want to run at 4 gHz (which I have been running ROCK solid for the last year) and have my memory at 1600. I would also like to have the RAM at 9-9-9-24, but it is not absolutely necessary. This kind of stuff might drive me over to the Empire (Intel).
post #7 of 9
Thread Starter 
I'm not to sure but it looks like you need to dissable AMD overdrive and all pc health in BIOS and not change timings in BIOS if your kinda new to OC'ing like me.Updated to F11 bios?

Also isn't it annoying when your mobo thinks RAM is overclocked even when its not?

Your CPU speeds maybe reduced or increased if you have core performance boost enabled or have AMD overdrive, dissable both and increase CPU clock ratio to x20 or when it says 4Ghz next to your selection panel. Also set voltage to auto as this works fine. (default CPB boost for 8120: 4Ghz)

lastly, In DRAM E.O.C.P set to profile1. That might do smile.gif

~
4.2Ghz 8120 with very stable RAM better than all similar product specs thanks to Goldmen 5.07
post #8 of 9
1. make sure your cpu is stable at the clocks you want it to run or there is no point in overclocking the ram.

2. your ram is probably 2x4gb 1600mhz. either enable X.M.P profile or set the timings manual. you have to use the following timings for your ram: 9-9-9-24 2T @ 1.650v. if you can"t boot with these timings, get your cpu overclock stable first or reset bios to default and only overclock the ram.
Gaming Rig
(8 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k 4.2GHz 1.25v Asus Z77-A Asus R9 280X 3GB Core 1000MHz 1.2v Memory 6000M... 2x4GB DDR3 1600MHz 9-9-9-24 2T 1.5v 
Hard DriveOSMonitorPower
Samsung Evo 840 120GB Windows 7 x64 Ultimate 24" 1920x1080 68Hz Corsair AX860i 
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Gaming Rig
(8 items)
 
  
CPUMotherboardGraphicsRAM
i5 3570k 4.2GHz 1.25v Asus Z77-A Asus R9 280X 3GB Core 1000MHz 1.2v Memory 6000M... 2x4GB DDR3 1600MHz 9-9-9-24 2T 1.5v 
Hard DriveOSMonitorPower
Samsung Evo 840 120GB Windows 7 x64 Ultimate 24" 1920x1080 68Hz Corsair AX860i 
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post #9 of 9
Quote:
Originally Posted by Takla View Post

you have to use the following timings for your ram: 9-9-9-24 2T @ 1.650v
^This

I have the same sticks as you, and at 1.69v I was able to run these sticks at 1788 8-9-8-21-30, or 1.67v @ 1644 7-9-8-20-29.

At stock clocks you shouldn't have any problems at 1600mhz, just make sure that your dimms are getting the 1.65v that they're rated for at those speeds.

If the machine doesn't boot the ram might be faulty, or something else in your system is causing instability.

The ram sticks are great though, best sticks I've bought in a long time, so you'll be happy with them for years to come smile.gif
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