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Need help getting RAM to 1800mhz

post #1 of 3
Thread Starter 
Hi guys,

I am get my DDR3 RAM up to 1800mhz(stock speed) on my Maximus Extreme board as I type. So here my problem, when I change the DRAM frequency to 1880mhz my system gets unstable.

So I have everyting on auto except for the following:

Ai Overclock Tuner ---Manual
CPU Ration setting---6
FSB frequency---470mhz
PCIE frequency---100

CPU voltage---1.28v
CPU pll voltage---1.5v
NB voltage---1.43v
FSB termination voltage---1.24v

CPU spread spectrum---Disabled
PCIE spread spectrum--- Disabled

------------------------------------

Advanced CPU settings

CPU Ratio setting---6
C1E support--Disabled
CPU TM function---Enabled
Vanderpool Technology---Enabled
Execute disable bit---Enabled
Max CPUID value limit---Enabled

Please help me!!
Big Ben
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Big Ben
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 3770k @ stock Gigabyte GA-Z77x-UD5H XFX 5870 1gb Samsung Low Voltage RAM 
Hard DriveCoolingCoolingOS
Crucial M4 64Gb-WD Velociraptor 300gb-WD 500GB Swiftech Apogee HD EK 5870 Copper Acrylic Windows 7 Ultimate 64bit 
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QNIX QX2710LED PLS Monitor @ 120hz Logitech G15 Corsair 1000HX Silverstone TJ07BW 
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post #2 of 3
It could be several things.
1.That board could be setting the wrong strap for it and you MAY need to set it manually.
2. Leaving the timings on auto the board may be setting the timings incorrectly. Just because they are rated for timings doesn't mean the board sets them there. You must set these manually.
3. Maybe the RAM/FSB ratio isn't compatible with 1800Mhz. All ratios aren't possible. It's also possible a setting of more than 1800 may work better. It depends on your FSB. What is the ratio in CPUz?
4. RAM voltage must be set manually. DDR3 defaults to 1.5, if yours needs more you must set it.
All of these must be experimented with to find the right match.
You are doing the correct thing by lowering the multi to see if you can get the speed right.
Is it stable at 1760Mhz?
G0
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G0
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Q6600G0 L728B205 OC to3.6 Asus Maximus Formula Sapphire Radeon 3870 4X1GB Crucial Ballistix 
Hard DriveOptical DriveOSMonitor
WD 320GB 2 X Sony DVD combo Vista ultimate 64 ViewSonic VX2235wm 22-inc 
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PC Power & Cooling Silencer 750 Quad Cheap 
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post #3 of 3
Thread Starter 
Quote:
Originally Posted by x2s3w4 View Post
It could be several things.
1.That board could be setting the wrong strap for it and you MAY need to set it manually.
2. Leaving the timings on auto the board may be setting the timings incorrectly. Just because they are rated for timings doesn't mean the board sets them there. You must set these manually.
3. Maybe the RAM/FSB ratio isn't compatible with 1800Mhz. All ratios aren't possible. It's also possible a setting of more than 1800 may work better. It depends on your FSB. What is the ratio in CPUz?
4. RAM voltage must be set manually. DDR3 defaults to 1.5, if yours needs more you must set it.
All of these must be experimented with to find the right match.
You are doing the correct thing by lowering the multi to see if you can get the speed right.
Is it stable at 1760Mhz?
Thanks for responding!! +rep for you!!

The 1760mhz was a few months ago and I though It was stable but after running Prime95 for more than 6 hours, I got some errors.

I tried changing the NB strap but with on luck. Maybe its just not getting along with my other settings..I will definitely try the stuff you advised. I will boot up with 470mhz fsb and check what is the ratio in CPU-z. So far at 470mhz its stable but that is with every thing at auto...

Oh now I remember! the FSB/RAM ratio is set to 1:1..
Big Ben
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 3770k @ stock Gigabyte GA-Z77x-UD5H XFX 5870 1gb Samsung Low Voltage RAM 
Hard DriveCoolingCoolingOS
Crucial M4 64Gb-WD Velociraptor 300gb-WD 500GB Swiftech Apogee HD EK 5870 Copper Acrylic Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
QNIX QX2710LED PLS Monitor @ 120hz Logitech G15 Corsair 1000HX Silverstone TJ07BW 
Mouse
Logitech G9 
  hide details  
Reply
Big Ben
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7 3770k @ stock Gigabyte GA-Z77x-UD5H XFX 5870 1gb Samsung Low Voltage RAM 
Hard DriveCoolingCoolingOS
Crucial M4 64Gb-WD Velociraptor 300gb-WD 500GB Swiftech Apogee HD EK 5870 Copper Acrylic Windows 7 Ultimate 64bit 
MonitorKeyboardPowerCase
QNIX QX2710LED PLS Monitor @ 120hz Logitech G15 Corsair 1000HX Silverstone TJ07BW 
Mouse
Logitech G9 
  hide details  
Reply
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