Hello, I have a little problem.
Before hare is my specs:
MoBo: Gigabyte GA-P55A-UD4 v2.0, BIOS F15 (latest)
CPU: Xeon x3470
RAM: Corsair CML16GX3M4A1600C9 (4x 4GB DDR3 1600MHz CL9, 9-9-9-24 1.5V)
PSU: Enermax 425W Pro82+ EPR425AWT II
Well, my first installation was with an i5 760 @ stock speed and everything worked fine. Than I tried a little overclocking setting BCLK to 150MHz so my RAM worked @ 1500MHz withoud any problem.
Lately ('cause I do a lot of video editing) I bought cheap used Xeon x3470 to lower a bit encoding times. Having the xeon a memory multiplier of x12, I selected the XMP profile, so I have memory run @ 1600 without OC.
There's the problem: without XMP the system runs flawlessly with RAM @ 1333MHz; if I select XMP or manually set memory multiplier to x12, the system reach the OS loading phase than shuts down, stays off about 2 seconds than back on and works fine but with 2 DIMMs disabled. If I reboot, both 4 DIMMs turn to enabled but @ 1333. If I turn off the system and back on after about an hour, it repeat the dual boot with 2 DIMMs disabled.
I've seen around the forum various problems similar and tried to set QPI manually to 1.17 but after reboot the BIOS reports me incorrect voltages. I excluded bent CPU socket pins 'cause @ 1333 both 4 DIMMs works fine without any memtest error.
With geekbench 3 I get a score of 9400 with 2 DIMMs disabled and the other @ 1600, and a score of 9380 with all 4 DIMMs enabled @ 1333, so there's really not much difference.
There's some other setting I can try to use RAM @ 1600 or is better to leave it @ x10, using the a bit of OC?
Thank you in advance
l0v3r
Before hare is my specs:
MoBo: Gigabyte GA-P55A-UD4 v2.0, BIOS F15 (latest)
CPU: Xeon x3470
RAM: Corsair CML16GX3M4A1600C9 (4x 4GB DDR3 1600MHz CL9, 9-9-9-24 1.5V)
PSU: Enermax 425W Pro82+ EPR425AWT II
Well, my first installation was with an i5 760 @ stock speed and everything worked fine. Than I tried a little overclocking setting BCLK to 150MHz so my RAM worked @ 1500MHz withoud any problem.
Lately ('cause I do a lot of video editing) I bought cheap used Xeon x3470 to lower a bit encoding times. Having the xeon a memory multiplier of x12, I selected the XMP profile, so I have memory run @ 1600 without OC.
There's the problem: without XMP the system runs flawlessly with RAM @ 1333MHz; if I select XMP or manually set memory multiplier to x12, the system reach the OS loading phase than shuts down, stays off about 2 seconds than back on and works fine but with 2 DIMMs disabled. If I reboot, both 4 DIMMs turn to enabled but @ 1333. If I turn off the system and back on after about an hour, it repeat the dual boot with 2 DIMMs disabled.
I've seen around the forum various problems similar and tried to set QPI manually to 1.17 but after reboot the BIOS reports me incorrect voltages. I excluded bent CPU socket pins 'cause @ 1333 both 4 DIMMs works fine without any memtest error.
With geekbench 3 I get a score of 9400 with 2 DIMMs disabled and the other @ 1600, and a score of 9380 with all 4 DIMMs enabled @ 1333, so there's really not much difference.
There's some other setting I can try to use RAM @ 1600 or is better to leave it @ x10, using the a bit of OC?
Thank you in advance
l0v3r
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