Overclock.net › Forums › Components › Memory › problem with RAM - XMP Profile 2 @ 2133 MHZ
New Posts  All Forums:Forum Nav:

problem with RAM - XMP Profile 2 @ 2133 MHZ

post #1 of 3
Thread Starter 
Hello experts, I could use some help :-)

I have an OC-ed i7-2700K running at 4.4GHz/1.35V. Till now, I was also able to OC my GSkill Ripjaws 8GB (4GBx2) RAM to 2133 M using the XMP profile.

I recently decided to expand RAM to 16GB and bought (what seems to be) an identical 4GBx2 set of RAM and whatever I try, I cannot get the XMP Profile 2 2133MHZ setting to work - it always results in boot failure due to overclocking.

My board is a Gigabyte z68 XP ud3. I know it's ancient components but I am wondering if I got bad sticks of RAM or is this expected behavior with all 4 RAM slots filled in? I have followed the color coded mapping of the RAM sticks and tried increasing RAM voltage to 1.65V - tried resetting BIOS to optimal defaults as well. Nothing has worked so far, other than being able to run the RAM at 1600MHz. The advertised speed and timings of the RAM sticks are identical - they do physically look very slightly different though.

Any advice is appreciated!!
post #2 of 3
Integrated memory controller (IMC) is on the processor. More sticks of RAM = more stress on the IMC. So while it may run 2133mhz with 2 sticks, it may not be able to run 4 sticks at the same frequency.

Generally, you don't need to touch the actual DRAM voltage. Your kits are matching, which is awesome. Probably you're going to have to increase the VCCIO voltage- which essentially goes to the CPU IMC. You can also try a little extra core voltage. If you can't stabilize 2133mhz, I would try for 1866mhz with tighter timings.
FreeNAS
(9 items)
 
Beast
(14 items)
 
Alura :)
(11 items)
 
CPUMotherboardGraphicsRAM
Intel Xeon E3-1245 v5 SuperMicro X11SSM-F-O C236 Integrated 2 x 16GB Kingston ValueRAM ECC KVR21E15D8/16 
Hard DriveCoolingOSPower
5 x 8TB Seagate IronWolf Pro in ZF2 Array CoolerMaster Hyper 212 Evo FreeNAS 11 EVGA SuperNOVA G2 550W Gold 
Case
Fractal Design Node 804 
CPUMotherboardGraphicsRAM
i7 4790k Asus Z97 Pro WIFI-AC Sapphire Nitro Radeon R9 Fury Tri-X OC+  G.Skill 4 x 8GB F3-2133C9D-16GXH 
Hard DriveOptical DriveCoolingOS
2 x Intel 730 480GB SSD in RAID 0 Asus DRW-24B1ST/BLK/B/AS Noctua NH-D15 Winblows 10 Pro x64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-660XP2 Fractal Design R4 Blackout 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Pro MSI R7970 Lightning BE 2 x 4GB G.Skill Ripjaws 2133mhz 
Hard DriveOptical DriveCoolingOS
Mushkin Enhanced Chronos 240GB and WD Black 1TB Asus DRW-24B1ST Cooler Master Hyper 212 EVO Windows 7 Ultimate x64 
MonitorPowerCase
Hannspree 24 inch Thermaltake Tough Power TP-750P 750W Gold Cooler Master HAF 932 
  hide details  
Reply
FreeNAS
(9 items)
 
Beast
(14 items)
 
Alura :)
(11 items)
 
CPUMotherboardGraphicsRAM
Intel Xeon E3-1245 v5 SuperMicro X11SSM-F-O C236 Integrated 2 x 16GB Kingston ValueRAM ECC KVR21E15D8/16 
Hard DriveCoolingOSPower
5 x 8TB Seagate IronWolf Pro in ZF2 Array CoolerMaster Hyper 212 Evo FreeNAS 11 EVGA SuperNOVA G2 550W Gold 
Case
Fractal Design Node 804 
CPUMotherboardGraphicsRAM
i7 4790k Asus Z97 Pro WIFI-AC Sapphire Nitro Radeon R9 Fury Tri-X OC+  G.Skill 4 x 8GB F3-2133C9D-16GXH 
Hard DriveOptical DriveCoolingOS
2 x Intel 730 480GB SSD in RAID 0 Asus DRW-24B1ST/BLK/B/AS Noctua NH-D15 Winblows 10 Pro x64 
MonitorKeyboardPowerCase
Pixio PX277 Logitech G510 Seasonic SS-660XP2 Fractal Design R4 Blackout 
MouseMouse Pad
Logitech G500 Xtrac Ripper 
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Pro MSI R7970 Lightning BE 2 x 4GB G.Skill Ripjaws 2133mhz 
Hard DriveOptical DriveCoolingOS
Mushkin Enhanced Chronos 240GB and WD Black 1TB Asus DRW-24B1ST Cooler Master Hyper 212 EVO Windows 7 Ultimate x64 
MonitorPowerCase
Hannspree 24 inch Thermaltake Tough Power TP-750P 750W Gold Cooler Master HAF 932 
  hide details  
Reply
post #3 of 3
Thread Starter 
Thank you for your reply Dopamin3. I realized that i had an old version of the BIOS - upgraded it to the UEFI version (released back in 2013 LOL) and that seemed to have also fixed the RAM XMP issue..CPU-Z confirms both processor and RAM speeds as expected.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Memory
Overclock.net › Forums › Components › Memory › problem with RAM - XMP Profile 2 @ 2133 MHZ