Overclock.net › Forums › Components › Memory › RAM won't run on rated specs anymore.
New Posts  All Forums:Forum Nav:

RAM won't run on rated specs anymore.

post #1 of 6
Thread Starter 
Hey guys,

I recently bought some new RAM (G.Skill F3-2600C10D-8GTXD | 2x4GB | 2600 MHz | 10-12-12-31-2N | 1.65V).
At first it ran great @2600 for about 2 weeks with just setting the XMP-Profile. But after some time my PC just wouldn't boot anymore. It tries three times and on the fourth it resets the RAM clock to 1600 and then it can boot. After some testing and also manually setting the clocks / voltages / timings I only can manage it to boot @ 2133 with 10-12-12-31-2N. I also tried to reset the BIOS and only OC the RAM with leaving the CPU at stock. It won't even run @ 2200+ with highest possible timings and slightly upped voltages.

Can't my CPU just handle the RAM anymore? I mean, it could at the beginning.

edit:// I also tried reseating the RAM several times in different slots. Another little question here: The TridentX lets you remove their upper heat sink. How important are they for running @max possible clocks? Because my Noctua NH-D14 is a litte bit to fat and I cant put a stick into the first slot without removing the heat sinks. ATM i have them in slot 2 and 4 but i still need to set the second fan of the cooler a little bit higher than normal so the sticks fit under it.

My Specs / Current settings:

MoBo: ASRock Pro3 Z77
CPU: I5-3570k @ 4,4GHz | 0,030 Offset | 0,070 Turbo ~ 1,248 VCore @load
RAM: 2x4GB F3-2600C10D-8GTXD (http://www.gskill.com/en/product/f3-2600c10d-8gtxd) 2133 MHz 10-12-12-31-2N @1.65
PSU: Coolermaster GTX Lite 700W
Edited by riedlZ - 7/31/13 at 2:01am
My PC
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-3570K ASRock Z77 Pro3 HIS HD 7970 IceQ X2 Turbo 2x 4GB G.SKILL TridentX DDR3-2600 CL10 
Hard DriveCoolingOSMonitor
Samsung 830 Series 128GB Noctua NH-D14 Windows 7 x64 Professional BenQ G2420HDB 24" 
KeyboardPowerCaseMouse
QPAD MK-80 Cooler Master GX Lite 700W Cooler Master HAF 912 Plus Logitech G400 
Mouse PadAudio
QPAD CT BLACK Asus Xonar DG 
  hide details  
Reply
My PC
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-3570K ASRock Z77 Pro3 HIS HD 7970 IceQ X2 Turbo 2x 4GB G.SKILL TridentX DDR3-2600 CL10 
Hard DriveCoolingOSMonitor
Samsung 830 Series 128GB Noctua NH-D14 Windows 7 x64 Professional BenQ G2420HDB 24" 
KeyboardPowerCaseMouse
QPAD MK-80 Cooler Master GX Lite 700W Cooler Master HAF 912 Plus Logitech G400 
Mouse PadAudio
QPAD CT BLACK Asus Xonar DG 
  hide details  
Reply
post #2 of 6
Don't know much about whether the your cpu can handle the RAM overclock or not, but intel usually prefer tighter RAM timings than the speed. Try messing around with the timings while relaxing the frequency and test
post #3 of 6
Thread Starter 
ATM it works @2133 as I said. I could also lower the timings by one and go 1N but I'm just curious what the reason could be why the RAM wont boot @2600 anymore.
My PC
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-3570K ASRock Z77 Pro3 HIS HD 7970 IceQ X2 Turbo 2x 4GB G.SKILL TridentX DDR3-2600 CL10 
Hard DriveCoolingOSMonitor
Samsung 830 Series 128GB Noctua NH-D14 Windows 7 x64 Professional BenQ G2420HDB 24" 
KeyboardPowerCaseMouse
QPAD MK-80 Cooler Master GX Lite 700W Cooler Master HAF 912 Plus Logitech G400 
Mouse PadAudio
QPAD CT BLACK Asus Xonar DG 
  hide details  
Reply
My PC
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-3570K ASRock Z77 Pro3 HIS HD 7970 IceQ X2 Turbo 2x 4GB G.SKILL TridentX DDR3-2600 CL10 
Hard DriveCoolingOSMonitor
Samsung 830 Series 128GB Noctua NH-D14 Windows 7 x64 Professional BenQ G2420HDB 24" 
KeyboardPowerCaseMouse
QPAD MK-80 Cooler Master GX Lite 700W Cooler Master HAF 912 Plus Logitech G400 
Mouse PadAudio
QPAD CT BLACK Asus Xonar DG 
  hide details  
Reply
post #4 of 6
Did the room temperature change? Because when you're running marginal RAM, and anything rated for 1.65V is marginal, temperature could matter that much, not only for the RAM itself but the voltages coming out of the PSU and the regulators for the CPU and DIMMs.

The heatsinks are not important for performance but only for warranty and marketing, so don't remove them to improve cooling or to apply new thermal compound. But if you already took them off, look at the part numbers written on the RAM chips because they'll tell you the real speed ratings. For example, Hynix and Samsung use "H9" to mean 1333 MHz and "Pb" or "K0" for 1600 MHz. It's rare for even the fastest retail DIMMs to have chips rated above 1600 MHz.
post #5 of 6
Check that VCCSA Voltage is manually set. That is one good i5 CPU if it was doing DDR3-2600. AUTO VCCSA may not be good enough anymore, so try manual and see if that can work. The required voltage should be listed in the XMP Profile.

For testing purposes, you can also try one module at a time to see if each can boot at DDR3-2600. Less stress on the IMC, so it should be easier to boot up and run. This helps determine whether the each module can run at the rated specs just fine.

The red fins on the G.Skill Trident X series can be removed without a problem. They will not affect heat dissipation. As long as the black heat spreader remains intact, everything will be functional.

Cheers
Quote:
Originally Posted by riedlZ View Post

Hey guys,

I recently bought some new RAM (G.Skill F3-2600C10D-8GTXD | 2x4GB | 2600 MHz | 10-12-12-31-2N | 1.65V).
At first it ran great @2600 for about 2 weeks with just setting the XMP-Profile. But after some time my PC just wouldn't boot anymore. It tries three times and on the fourth it resets the RAM clock to 1600 and then it can boot. After some testing and also manually setting the clocks / voltages / timings I only can manage it to boot @ 2133 with 10-12-12-31-2N. I also tried to reset the BIOS and only OC the RAM with leaving the CPU at stock. It won't even run @ 2200+ with highest possible timings and slightly upped voltages.

Can't my CPU just handle the RAM anymore? I mean, it could at the beginning.

edit:// I also tried reseating the RAM several times in different slots. Another little question here: The TridentX lets you remove their upper heat sink. How important are they for running @max possible clocks? Because my Noctua NH-D14 is a litte bit to fat and I cant put a stick into the first slot without removing the heat sinks. ATM i have them in slot 2 and 4 but i still need to set the second fan of the cooler a little bit higher than normal so the sticks fit under it.

My Specs / Current settings:

MoBo: ASRock Pro3 Z77
CPU: I5-3570k @ 4,4GHz | 0,030 Offset | 0,070 Turbo ~ 1,248 VCore @load
RAM: 2x4GB F3-2600C10D-8GTXD (http://www.gskill.com/en/product/f3-2600c10d-8gtxd) 2133 MHz 10-12-12-31-2N @1.65
PSU: Coolermaster GTX Lite 700W
post #6 of 6
Thread Starter 
Thanks for your replys.

The room temperatur may got a bit higher since we reach up to 40°C here in Germany the last days. When I get home from work I'll try to set the System Agent Voltage manually and try only one stick at a time. What do you think I shoud set here? The recommend max. of 0.971v? And what about the other voltages like Vᴄᴄɪᴏ? And how high I could/should go with the RAM voltage? I'll also have a look if I can find a part number like you said.
My PC
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-3570K ASRock Z77 Pro3 HIS HD 7970 IceQ X2 Turbo 2x 4GB G.SKILL TridentX DDR3-2600 CL10 
Hard DriveCoolingOSMonitor
Samsung 830 Series 128GB Noctua NH-D14 Windows 7 x64 Professional BenQ G2420HDB 24" 
KeyboardPowerCaseMouse
QPAD MK-80 Cooler Master GX Lite 700W Cooler Master HAF 912 Plus Logitech G400 
Mouse PadAudio
QPAD CT BLACK Asus Xonar DG 
  hide details  
Reply
My PC
(14 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-3570K ASRock Z77 Pro3 HIS HD 7970 IceQ X2 Turbo 2x 4GB G.SKILL TridentX DDR3-2600 CL10 
Hard DriveCoolingOSMonitor
Samsung 830 Series 128GB Noctua NH-D14 Windows 7 x64 Professional BenQ G2420HDB 24" 
KeyboardPowerCaseMouse
QPAD MK-80 Cooler Master GX Lite 700W Cooler Master HAF 912 Plus Logitech G400 
Mouse PadAudio
QPAD CT BLACK Asus Xonar DG 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Memory
Overclock.net › Forums › Components › Memory › RAM won't run on rated specs anymore.