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Wierd problem with rampage 3 extreme and ocing

post #1 of 3
Thread Starter 
So...my 990x was completely stable on my SLI LE at 4.5ghz, and so i keyed in the same values with the R3E, and i got a "bad bios checksum" error upon posting.

i know all my voltages are right, so what's causing this. its completely fine at stock settings.


my bios is vanilla, if that makes a difference.
 
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Simba
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Intel Core 2 Quad Q6600 @3.6GHz Asus Maximus II Formula EVGA GTX 570 @900 Core 4GB (aww yea) GeiL Black Dragons 
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post #2 of 3
Thread Starter 
Finally cracked why i wasnt getting 4.5ghz on the R3E. i forgot the uncore clock has to be 1.5 times the dram frequency on 6 core cpu's not twice like on 4 core cpu's.
 
Simba
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Intel Core 2 Quad Q6600 @3.6GHz Asus Maximus II Formula EVGA GTX 570 @900 Core 4GB (aww yea) GeiL Black Dragons 
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Optical DriveCoolingCoolingCooling
ASUS DVD R/RW SATA x24 Prolimatech Megahalems Boss Status 2x 1850rpm Scythe Gentle Typhoons 2x Sanyo Denki San Ace 9G1212H1011 
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NZXT Hale90 1000W Antec P280 Steelseries Sensei Steelseries QCK Mini 
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Intel Core i7 3770K @ 5GHz 1.43V Gigabyte GA-Z77X-UP4 TB MSI Twinfrozr III 7870 2x4GB Samsung Wonder Ram 
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128GB Crucial M4 1TB Caviar Blue, 640GB Caviar Blue 2x2TB Western Digital Reds coming Prolimatech Megahalems w/ 2x San Ace H1011's pu... 
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Simba
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Gulftown Memories
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CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q6600 @3.6GHz Asus Maximus II Formula EVGA GTX 570 @900 Core 4GB (aww yea) GeiL Black Dragons 
Hard DriveHard DriveHard DriveHard Drive
128GB Crucial M4 Seagate Barracuda 3TB 7200.14 2TB Western Digital Red 1TB Western Digital Caviar Green 
Optical DriveCoolingCoolingCooling
ASUS DVD R/RW SATA x24 Prolimatech Megahalems Boss Status 2x 1850rpm Scythe Gentle Typhoons 2x Sanyo Denki San Ace 9G1212H1011 
CoolingOSMonitorKeyboard
1x Scythe Ultra Kaze 3k Windows 8 Pro Dell S2740 27 Inch IPS Das Keyboard 
PowerCaseMouseMouse Pad
NZXT Hale90 1000W Antec P280 Steelseries Sensei Steelseries QCK Mini 
AudioOther
Fiio E9 to Asus Xonar DX (headphone amp AND DAC) Sennheiser HD598 
CPUMotherboardGraphicsRAM
Intel Core i7 3770K @ 5GHz 1.43V Gigabyte GA-Z77X-UP4 TB MSI Twinfrozr III 7870 2x4GB Samsung Wonder Ram 
Hard DriveHard DriveHard DriveCooling
128GB Crucial M4 1TB Caviar Blue, 640GB Caviar Blue 2x2TB Western Digital Reds coming Prolimatech Megahalems w/ 2x San Ace H1011's pu... 
OSMonitorKeyboardPower
Windows 8 Pro 32 inch Toshiba LCD, 24 inch Dell ST2412L Coolermaster Quickfire Rapid Antec Truepower New 750W 
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Antec P280 Razer Deathadder 1800dpi frankenstein! just hdmi audio to the tv for now 
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post #3 of 3
Quote:
Originally Posted by srsparky32 View Post

Finally cracked why i wasnt getting 4.5ghz on the R3E. i forgot the uncore clock has to be 1.5 times the dram frequency on 6 core cpu's not twice like on 4 core cpu's.

It doesn't have to be 1.5 times the ram frequency, it makes clocking ram higher easier. I ran two times uncore with my 990x for months without issue, although I needed 1.425v VTT to make it happen.

You'd get a nice boost in performance running at a safe 3800MHz with resonable voltage.
    
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