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4200MHz Uncore - i7 950.

post #1 of 8
Thread Starter 
Hey guys,

I am trying to push 4200MHz on my Uncore so that I can run my RAM at 2100MHz, however I cannot get stable above 4035MHz uncore.

Note that the RAM I have is rated for 2000MHz @ 1.6V and that I am testing the Uncore stability separate to the RAM (IE only bumping up the uncore multi and leaving the RAM at its current setting of 1754MHz)

If anyone can suggest any modifications to make to get 4200MHz uncore I would be grateful...

RaptoR
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post #2 of 8
Dbl post.
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post #3 of 8
Dude don't

You will NOT get 2100mHz stable with a Bloomfield with a QPI/DRAM Voltage that will not damage your CPU in the mid-to short term. Look in your screenshot. That "QPI/DRAM 1.55V" reading is REALLY bad. The Bloomfield memory controller just won;t do it at sane/safe voltages and 1.4+ is NOT safe.
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post #4 of 8
Thread Starter 
Shall I just be content with 1754MHz RAM / 3500-3800ish Uncore then?
RaptoR
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post #5 of 8
Quote:
Originally Posted by _RaptoR_ View Post
Shall I just be content with 1754MHz RAM / 3500-3800ish Uncore then?
What is your QPI/DRAM voltage at that frequency? Every IMC and Bloomfield is different in how much voltage it needs for each RAM multiplier.

Remember we're talking about the longevity or lack thereof of your gear. My 2133 RAM I am running at 1600mHz or 1333-as I need my board/CPU to last a long while.
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SpinpontF3 1TB, WD 250, and WD320 Lite-On DT Waterblocks DT5Noz Waterblock Swiftech Komodo 6900-1 Waterblock 
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post #6 of 8
Thread Starter 
@ 3683MHz Uncore It goes right down to 1.35V...
RaptoR
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post #7 of 8
Quote:
Originally Posted by _RaptoR_ View Post
@ 3683MHz Uncore It goes right down to 1.35V...
That is much better. I'd consider acceptable.

For perspective, 1066mHz is what the IMC of Bloomfield considers "stock" anything over that is technically overclocked. My Bloomfield with 6GB at 1066mHz-1333 only need 1.20V QPI/DRAM.
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CPUMotherboardGraphicsRAM
Intel Xeon E3-1230 Asus Maximus IV Gene-Z/Gen3 Powercolor 6970 2GB G. Skill 1600mHz Ripjaws 
Hard DriveOptical DriveCoolingCooling
SpinpontF3 1TB, WD 250, and WD320 Lite-On DT Waterblocks DT5Noz Waterblock Swiftech Komodo 6900-1 Waterblock 
CoolingCoolingCoolingOS
Swiftech MCR-220 Drive radiator Swiftech MCR-220 QP radiator 6xGentle Typhoon AP-15s Archx64 KDE4.5, Windows 7 x64 
MonitorKeyboardPowerCase
Eyefinity 3-head 5265x1050 OCN Ducky!! MX Blue Switches XFX 750W Black Edition Mountain Mods H2gO 
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CPUMotherboardGraphicsRAM
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DD Boxen
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CPUMotherboardGraphicsRAM
Intel Xeon E3-1230 Asus Maximus IV Gene-Z/Gen3 Powercolor 6970 2GB G. Skill 1600mHz Ripjaws 
Hard DriveOptical DriveCoolingCooling
SpinpontF3 1TB, WD 250, and WD320 Lite-On DT Waterblocks DT5Noz Waterblock Swiftech Komodo 6900-1 Waterblock 
CoolingCoolingCoolingOS
Swiftech MCR-220 Drive radiator Swiftech MCR-220 QP radiator 6xGentle Typhoon AP-15s Archx64 KDE4.5, Windows 7 x64 
MonitorKeyboardPowerCase
Eyefinity 3-head 5265x1050 OCN Ducky!! MX Blue Switches XFX 750W Black Edition Mountain Mods H2gO 
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Lian Li Card flash memory reader Asus PCE-N15 Wifi-N card 
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AMD 1055T Gigabyte 790 Sapphire 4850x2 2x2GB 1600mHz 
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A few Yes Vista/7 Das Keyboard 
Power
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post #8 of 8
Chips IMC is probably not up to it. I was going to suggest more VTT, but it's already at 1.55v.

I really don't see the point in doing this unless you are tying to do some benches or something.
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