Overclock.net › Forums › Components › Memory › Cannot OC ram to 1866
New Posts  All Forums:Forum Nav:

Cannot OC ram to 1866

post #1 of 6
Thread Starter 
Hey all, I am running a i7 3930k, msi big bang xpower ii, 64GB vengance 1866 quad, Gtx titan SLI, ax1200. I am having such a hard time getting my memory to 1866 mhz. It will work with 1333 default and 1600 with 9-10-9-27 2t timing. I tried 9-11-10-28 2t, xmp, my cpu is 44 multiplier and 1.35 core v. I tried putting ram v up to 1.65 (was told by corsair). Ive probably reset my pc 200 times trying to get this to work. It never posts at 1866 always error. Does anyone have any ideas? My cpu is sitting 30c-40c. Thanks everyone!

CPU-Z:
http://valid.canardpc.com/2734979

Hardstyle
Edited by callmegod - 3/17/13 at 8:02pm
post #2 of 6
Quote:
Originally Posted by callmegod View Post

Hey all, I am running a i7 3930k, msi big bang xpower ii, 64GB vengance 1866 quad, Gtx titan SLI, ax1200. I am having such a hard time getting my memory to 1866 mhz. It will work with 1333 default and 1600 with 9-10-9-27 2t timing. I tried 9-11-10-28 2t, xmp, my cpu is 44 multiplier and 1.35 core v. I tried putting ram v up to 1.65 (was told by corsair). Ive probably reset my pc 200 times trying to get this to work. It never posts at 1866 always error. Does anyone have any ideas? My cpu is sitting 30c-40c. Thanks everyone!
Hardstyle

Have you tried removing some of the RAM and attempting the same settings with a less amount?

What on earth are you doing with that much RAM? Ram disks or is there something else!?
Animus
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 3770K Asus Maximus V Formula Z77 EVGA GTX980Ti SC+ ACX 2.0+ 2 x 4GB Corsair Dominator GT 1866Mhz 
Hard DriveHard DriveCoolingCooling
Samsung 840 Pro 128GB 2 x WD 1TB Blue EZEX RAID0 EK Supremacy - Copper / Acetal EK Titan X & Backplate - Copper / Acetal 
CoolingCoolingCoolingCooling
EK 360XTX EK Spin Reservoir - Acetal Liang DDC / EK Top EK PSC Compression Fittings 
OSMonitorKeyboardPower
Windows 7 Professional 64bit 3 x Samsung P2450H 24" Filco Majestouch 2 - Cherry Blues Corsair TX750 
CaseMouseMouse PadAudio
Corsair 800D Razer Deathadder 2013 Razer Destructor 2 Creative Titanium HD 
AudioAudio
Fiio E9 Amplifier Beyerdynamic DT880 Premium (600 Ohm) 
  hide details  
Reply
Animus
(22 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 3770K Asus Maximus V Formula Z77 EVGA GTX980Ti SC+ ACX 2.0+ 2 x 4GB Corsair Dominator GT 1866Mhz 
Hard DriveHard DriveCoolingCooling
Samsung 840 Pro 128GB 2 x WD 1TB Blue EZEX RAID0 EK Supremacy - Copper / Acetal EK Titan X & Backplate - Copper / Acetal 
CoolingCoolingCoolingCooling
EK 360XTX EK Spin Reservoir - Acetal Liang DDC / EK Top EK PSC Compression Fittings 
OSMonitorKeyboardPower
Windows 7 Professional 64bit 3 x Samsung P2450H 24" Filco Majestouch 2 - Cherry Blues Corsair TX750 
CaseMouseMouse PadAudio
Corsair 800D Razer Deathadder 2013 Razer Destructor 2 Creative Titanium HD 
AudioAudio
Fiio E9 Amplifier Beyerdynamic DT880 Premium (600 Ohm) 
  hide details  
Reply
post #3 of 6
Thread Starter 
Quote:
Originally Posted by Crooksy View Post

Have you tried removing some of the RAM and attempting the same settings with a less amount?

What on earth are you doing with that much RAM? Ram disks or is there something else!?

Doing it for fun. I have a 32gb 8x4gb vengance 1600 kit that works fine. But my 8x8gb vengance 1866 kit will not do it. I haven't tried anything under 64gb with the certain kit. All 64gb are recognized. Honestly I'm not the oc guru but not an idiot. Also not looking for flamers. Tyty

Hardstyle
post #4 of 6
A lot of X79 platforms have trouble running 8 modules at maximum speed, and since you have no OCN profile, I can't see what motherboard you're running.

What's your VCCSA and VCCSA Load Line set to currently? Have you tried clocking 1866 with a lower CPU overclock? Your IMC to core bridge is built into the CPU on that 3930K, so you might need a lower core clock to stabilize your higher memory clock with 8 modules. I'd knock the turbo multiplier and core voltage back to stock before trying to diagnose your RAM issue.

Greg
post #5 of 6
I would say its the Divider. Try to default Cpu clock speed then the XMP to 1866. You might not be able to OC the CPU as high as it was. If that dosnt work do it backwards OC the CPU and leave the RAm at default. THen up the ram as well as the voltage past what cosair said .
post #6 of 6
CPU-Z says that Corsair 1866 MHz memory is made of 1333 MHz chips, indicating the problem could be the factory overclocking. Also running four DIMMs at once loads down the bus more, and some motherboards can't handle that, or the BIOS doesn't automatically compensate enough for that by automatically slowing down the timings.

Every DDR3 chip is designed to meet all specifications at 1.5V or less, So any DIMM that requires higher voltage is made of chips that are either overclocked or defective.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Memory
Overclock.net › Forums › Components › Memory › Cannot OC ram to 1866