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Complete Overclocking Guide: Sandy Bridge & Ivy Bridge | *ASRock Edition* - Page 889

Poll Results: Was this guide helpful?

Poll expired: Oct 17, 2012  
  • 80% (237)
    Yes (and I DO have an ASRock motherboard).
  • 15% (45)
    Yes (but I DO NOT have an ASRock motherboard).
  • 2% (7)
    No (and I DO have an ASRock motherboard).
  • 2% (7)
    No (but I DO NOT have an ASRock motherboard).
296 Total Votes  
post #8881 of 8883
Quote:
Originally Posted by deepor View Post

I would experiment some more with the RAM. Check it out without XMP profile enabled. It should then run at 1600 MHz or so. If you still find errors, try it with just one stick at a time. It's unlikely that both sticks are broken at the same time, so if the RAM is at fault, only one should be broken. If you find that both of them don't run right, then it's likely something else about the CPU or board that's at fault.

Another thing is, I think it's not unusual that the CPU itself has a low limit about what RAM speeds it can do. The parts in the CPU talking to RAM are officially only supposed to do 1333 MHz or 1600 MHz at most. When you use 2133 MHz RAM, those parts doing the communication are basically overclocked. There is a certain point where it will simply not work anymore. Similar to what happens when you increase the core speeds, you can also try to get it to run stable at higher speeds by increasing the voltage for those parts of the CPU. I'm not 100% sure what voltage setting that is. I think it is VCCSA.

What I wanted to suggest with that last paragraph is that the RAM might be completely fine (meaning it tested stable at 2133 MHz at Mushkin's factory), and sending it back to Mushkin for RMA would be a mistake and pointless.
I had been running the 16GB Mushkin RAM (4 sicks of 4GB) at 2000 MHz with my 2600K at 4.6GHz, even though the RAM is rated for 2133MHz, and every has been fine for years.
Now with the 3770K installed, I'm getting all these issues. Prime and IBT keep failing even though I'm running the CPU at stock speeds, and even when having the RAM set at 1600MHz. So I try over clocking the CPU between 4.0-4.5GHz, and got to what I thought was a stable 4.5 since Prime passed for 24hr, but then the next day when I run it, it kept failing after only a few minutes. I then went back to 4.2 and Prime failed. I reflashed the bios to make sure everything was back to stock, and Prime and IBT was continuing to fail. At that point was when I ran the MemTest and it came up with all those errors.

So with all that, I'm not sure where the problem is, either with the 3770K I purchased being faulty, my ASRock Z68 MB having issues, or my RAM is going bad.
I could try the RAM a stick at a time and run MemTest and see if it comes up with errors.
FAUguy PC
(12 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3770K ASRock Z68 Fatal1ty Pro Gen 3 NVidia 560 ti Mushkin Enhanced Redline 16GB 2133MHz 
Hard DriveOptical DriveOptical DriveOS
Hitachi 2TB 7K3000 Pioneer BDR-2208 Plextor PX-716 Windows 7 x64 
MonitorPowerCaseAudio
NEC FE2111SB Enermax 600W CoolerMaster CM Stacker Soundblaster Audigy 2 
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FAUguy PC
(12 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3770K ASRock Z68 Fatal1ty Pro Gen 3 NVidia 560 ti Mushkin Enhanced Redline 16GB 2133MHz 
Hard DriveOptical DriveOptical DriveOS
Hitachi 2TB 7K3000 Pioneer BDR-2208 Plextor PX-716 Windows 7 x64 
MonitorPowerCaseAudio
NEC FE2111SB Enermax 600W CoolerMaster CM Stacker Soundblaster Audigy 2 
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Reply
post #8882 of 8883
Now that you mention that, another thing I've seen is people saying that they had issues using all four slots of memory compared to just using two of them. There was a work-around to fix that issue, and it involved increasing one of the voltages for the CPU (I'm guessing VCCSA). A while back, you mentioned that you already tried increasing VTT and VCCSA. Perhaps try again as you might have been playing around with overclocking at that time? Try for example VTT 1.080V and VCCSA 0.970V. That's what Intel supposedly recommends as max. values for those, according to a table seen in this thread here: http://www.overclock.net/t/1247413/ivy-bridge-overclocking-guide-with-ln2-guide-at-the-end
post #8883 of 8883
Quote:
Originally Posted by deepor View Post

Now that you mention that, another thing I've seen is people saying that they had issues using all four slots of memory compared to just using two of them. There was a work-around to fix that issue, and it involved increasing one of the voltages for the CPU (I'm guessing VCCSA). A while back, you mentioned that you already tried increasing VTT and VCCSA. Perhaps try again as you might have been playing around with overclocking at that time? Try for example VTT 1.080V and VCCSA 0.970V. That's what Intel supposedly recommends as max. values for those, according to a table seen in this thread here: http://www.overclock.net/t/1247413/ivy-bridge-overclocking-guide-with-ln2-guide-at-the-end
I'll give that a try increasing the VTT and VCCSA.
What's weird though is that today I had the RAM speed set at 1600 MHZ (just like yesterday) and ran the MemTest86 and after a couple hours it didn't have any errors, despite having errors yesterday. So now I have it doing Prime to see if that passes. If it does, then I'll keep the RAM at 1600 for now and try to OC the CPU some and see if it stays stable.

Edit: So far Prime has been stable for 3hr with stock CPU values and RAM at 1600mhz.
Edited by FAUguy - Yesterday at 4:38 pm
FAUguy PC
(12 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3770K ASRock Z68 Fatal1ty Pro Gen 3 NVidia 560 ti Mushkin Enhanced Redline 16GB 2133MHz 
Hard DriveOptical DriveOptical DriveOS
Hitachi 2TB 7K3000 Pioneer BDR-2208 Plextor PX-716 Windows 7 x64 
MonitorPowerCaseAudio
NEC FE2111SB Enermax 600W CoolerMaster CM Stacker Soundblaster Audigy 2 
  hide details  
Reply
FAUguy PC
(12 items)
 
  
CPUMotherboardGraphicsRAM
Intel 3770K ASRock Z68 Fatal1ty Pro Gen 3 NVidia 560 ti Mushkin Enhanced Redline 16GB 2133MHz 
Hard DriveOptical DriveOptical DriveOS
Hitachi 2TB 7K3000 Pioneer BDR-2208 Plextor PX-716 Windows 7 x64 
MonitorPowerCaseAudio
NEC FE2111SB Enermax 600W CoolerMaster CM Stacker Soundblaster Audigy 2 
  hide details  
Reply
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