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intel core i7 920 4ghz overclock reducing system memory to 4gigs.

post #1 of 10
Thread Starter 
Everytime i do a 4ghz overclock my system memory is being reduced to 4gigs. My system is at 3.2 a slight overclock no memory bumping and its fine.

My board is a foxconn flaming blade gti.

I just cant figure out what is causing the issue.
post #2 of 10
That happens all the time on X58. I would try adjusting the CPU VTT voltage, but here is a full list of the reasons it happens:

http://i4memory.com/ramdetect
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post #3 of 10
I have seen this happen to. If memory serves its a ram instability issue and upping the QPI/DRAM voltage helped solve it. Also your VDIMM should be set to 1.64v (some set it to 1.65v or 1.66v whatever works).
    
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post #4 of 10
Thread Starter 
What should i set QPI voltage too? also is the QPI voltatage to? I have mine set to 260mv at the moment i dont know what that is in voltage.
post #5 of 10
Quote:
Originally Posted by dmxdex2020 View Post

What should i set QPI voltage too? also is the QPI voltatage to? I have mine set to 260mv at the moment i dont know what that is in voltage.
Bios'es can have different names depending on brand. QPI/DRAM is what's it's called on Asus boards.



Like it says in the link Dopamin3 posted
Quote:
Asus terms as QPI/DRAM voltage, Gigabyte terms as QPI/VTT while most other boards refer to it as CPU VTT voltages

What mother board do you have? In 260mv the mV stands for millivolt. 260mV = 0.26V.

What mother board do you have? In 260mv the mV stands for millivolt. 260mV = 0.26V. Are you sure it does not say +1260mV? If so it could be that your motherboard uses a the same naming convention as FOXConn mobos
Edited by Bit_reaper - 11/22/12 at 3:53pm
    
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post #6 of 10
Thread Starter 
It is a fonxconn flaming blade gti. The use of mv confuses me. My current mv is 260mv, what should i set it too? And yes it says plus, what would the plus mean?
Edited by dmxdex2020 - 11/22/12 at 4:00pm
post #7 of 10
Quote:
Originally Posted by dmxdex2020 View Post

It is a fonxconn flaming blade gti. The use of mv confuses me. My current mv is 260mv, what should i set it too?

If it's +260mV then its probably an additive value meant to be read as +260mV over 1.0V. So your current voltage would be 1.26V. If I'm interpreting what you are saying correctly then you should bump the QPI one step at the time and see if that help.

To get my 920 to run at 4.0 Ghz I had to set my QPI to 1.35V. 1.35V is a pretty high number and I would not go over it and with some luck you can get away with much less. For clarity your max would be +350mV. Also going over that would probably prompt your mobo to give you a warning as its outside Intel spec. I know my mobo did.

Also as future reference you should read this thread:
http://www.overclock.net/t/538439/guide-to-overclocking-the-core-i7-920-or-930-to-4-0ghz
Its a very good guide for 920 overclocking.
Edited by Bit_reaper - 11/22/12 at 4:12pm
    
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i7 920 OC 4.0 GHz 1.35v HT on Asus P6T 1366 SLI Gigabyte GTX 970 OCZ 12GB DDR3 GOLD/Platinum mix 
Hard DriveHard DriveHard DriveHard Drive
Samsung Spinpoint F1 1TB Western digital 300GB Western digital Caviar Blue 1TB Samsung 840 EVO 250Gb 
Optical DriveCoolingOSMonitor
generic LG DVD WC'd , Supreme LT, NexXxoS Xtreme III 360, Phob... Windows 7 x64 Samsung 27" LED S27A550B 
MonitorMonitorKeyboardPower
ACER 23" x233H Dell U3415W Logitech G11 Chieftec 850W 
CaseMouseMouse PadAudio
Phanteks enthoo luxe Razer deathAdder respawn steelseries Qck Yamaha HTR-6130 AV Receiver 
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post #8 of 10
Thread Starter 
After 240 the numbers turn red that worrys me. But up to 350 i should be fine?
post #9 of 10
What I use for 920@ 4007Mhz HT on:


Custom water cooled system "ONLY" for this CPU voltage!!!

Although I'm using an Asus P6T deluxe
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post #10 of 10
Thread Starter 
I bumped it to 135 the numbers are red but i will trust people on here.
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