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CPU/Memory Reference Voltage HELP!

post #1 of 7
Thread Starter 
Hi guys and girls.

yet again I must sit at the feet of ye overclocking gods.

My MSI x38 motherboard has just had a BIOS flash to version 1.6, provided by MSI after I had RAID issues. the other up side is that this has moved my overclocking wall to just shy of 3.7GHz.

Now it seems everyone with an E8400 CPU can hit 4GHz no problem and after lots of stressful failed attempts and many hours of research into possible causes of this wall, I have found I may have to change my Memory Reference Voltage? (with the memory voltage)

at the moment, all my voltages are set to Auto.
I cant find any info on reference voltages, other than they help at higher clocks.

My motherboard tells me that its the Memory that fails on POST when I pass 3.6GHz. If anyone could help me reach my 4GHz goal, I would be so grateful, the stuff that would happen would see me banned from most US states.

thanks again guys.
post #2 of 7
It's definitely a bad idea to set all voltages to auto, because the motherboard generally overvolts everything. If it's DDR3, start the voltage at 1.65v and work your way up until you reach stable. You should actually redo your whole overclock with managed voltages, because my old motherboard used to put voltages at suicidal levels. For the CPU, start at 1.28v and work up from there see how far you get.
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Tiny Fun
(8 items)
 
4P Folding Rig 1
(16 items)
 
4P Folding Rig 2
(11 items)
 
CPUMotherboardGraphicsRAM
i7-4770K @ 4.0GHz MSI Z87I EVGA GTX 660 Ti Corsair Vengeance 16GB 
Hard DriveCoolingOSCase
Samsung 840 Pro 256GB Swiftech Apogee Drive II Windows 8 Enterprise x64 Cooler Master Elite 120 Advanced 
CPUCPUCPUCPU
AMD Opteron 6274 ES 2.2GHz 16-Core AMD Opteron 6274 ES 2.2GHz 16-Core AMD Opteron 6274 ES 2.2GHz 16-Core AMD Opteron 6274 ES 2.2GHz 16-Core 
MotherboardGraphicsRAMHard Drive
SuperMicro H8QGi+-F Matrox G200eW 16x2 (32GB) Crucial Ballistix DDR3 1600MHz Crucial C300 64GB 
OSPowerCase
Linux Mint 15 Cinnamon 64-bit Enermax Galaxy Evo 1250W Spotswood Tech Tray 
CPUCPUCPUCPU
AMD Opteron 6176 SE 12-Core 2.3GHz AMD Opteron 6176 SE 12-Core 2.3GHz AMD Opteron 6176 SE 12-Core 2.3GHz AMD Opteron 6176 SE 12-Core 2.3GHz 
MotherboardGraphicsRAMHard Drive
Supermicro H8QGL-IF+ Matrox G200eW Kingston Server 16x1GB DDR3 Corsair Nova 32GB 
OSPower
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post #3 of 7
Thread Starter 
Well, no. the motherboard maintains quite lean voltages. In fact to a large degree it manages the voltages perfectly. Its only when I pass outside the supported parameters that everything starts to fall apart.

One thing I do love is how the motherboard changes the memory timings automatically according to the FSB/memory speed. anyway, I digress

I can up the voltages to anything I like and it wont change anything in terms of stability. before anyone says, I confirmed the voltage changes in windows.
This caused me to explore other reasons for the issue that brings me back to reference voltages.
post #4 of 7
Are you overclocking your memory and CPU at the same time? If so, try leaving your memory at default speeds while you OC your CPU.


BTW, this thread should prbly be in the Intel section, since its not really a v'mod.
    
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E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
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post #5 of 7
Thread Starter 
Sorry, thought I mentioned that my OC limit was 3.6GHz without changing the RAM settings.

I thought that as I was changing the Memory Reference Voltage that it fell under voltage mods?

My bad.
post #6 of 7
No big deal man. Peeps will still help you out.


Anyway, back on topic. You shouldm't need to be tweaking the mem reference voltage unless you are pushing some high memory Mhz. If you are at a ratio limit where you can't keep your memory running at stock speeds, you need to loosen your memory timings.
    
CPUMotherboardGraphicsRAM
E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
Hard DrivePowerCase
Seagate 250GB + 80GB WD for benching TT 875w, Corsair 650TX Custom bench station 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
E8400, E8600, 980BE T2RS+, P5E3, TA890FXE 8800GTS's,GTX's,GS,Ultra's,9600GT Lots of D9's and some crap DDR3 
Hard DrivePowerCase
Seagate 250GB + 80GB WD for benching TT 875w, Corsair 650TX Custom bench station 
  hide details  
Reply
post #7 of 7
Come on if its memory its not always the sticks,it might be the NB that has set tight timings.RELAX TIMINGS,then up the voltage of mem a little like 1,75-1,8(idk ddr3 safe volts) then bump the vcore straight to 1,4volts.And give NB 1,33-1,35.Thats should do for 4GHz i hope!Its safe none the less!
    
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