CMP6GX3M3A1600C8 and X58 crashing under load

[cwx]

Memory is only stable at 1066mhz. All of the methods used to obtain 1600mhz cause the system to bluescreen under load. XMP Profile#1 8-8-8-24 1.65V crashes, as well as all settings auto and setting target frequency to 1600mhz.

Currently, with auto enabled, RAM clocks in at 800mhz on CPUZ. 9-9-9-24-88.

Memtest is ok. It has been pointed out that these sticks are not on Asus's QVL for the Rampage III Gene. Not sure if that should really matter as this RAM has been very reliable for me in the past.

Thanks!

[peanutz94]

If CPU-Z is reading the memory at 800mhz. That gets multiplied by 2. Giving you a speed of 1600mhz.

If it were running at 1066, CPU-Z would report 533 mhz. If you have them set on auto and keyed in the target freq, it look like they are running at 1600mhz.
But just in case,any chance of a screen shot?
You can also check this link on how to read CPU-z. It may shed some light. http://forum.corsair.com/v3/showthread.php?t=44495

[RAM GUY]

Also check the CPU/QPI Voltage and see what its set to with MP enabled, if its set to 1.2 Volts try it at 1.4 Volts.

[cwx]

Hi guys and sorry for the extremely late response.
Thanks for your inputs. I have been using my system in a state that does not utilize XMP for a while. Thought I'd take another crack at getting it to work and ran into the same issues. Here's my CPUZ details on a stable memory profile.. QPI was 1.2... 1.4 didn't seem to make a difference.

Basically instead of using an XMP profile, I just set the target frequency manually to 1600mhz and use spd of 8-8-8-24-41-2T with a voltage of 1.643 thereabouts. Not sure why just using an XMP profile causes the bluescreen crashes under load.. but at least the PC works.

Chipset	 
Northbridge	Intel X58 rev. 13
Southbridge	Intel 82801JR (ICH10R) rev. 00
Graphic Interface	PCI-Express
PCI-E Link Width	x16
PCI-E Max Link Width	x16
Memory Type	DDR3
Memory Size	6144 MBytes
Channels	Triple
Memory Frequency	803.3 MHz (2:12)
CAS# latency (CL)	8.0
RAS# to CAS# delay (tRCD)	8
RAS# Precharge (tRP)	8
Cycle Time (tRAS)	24
Row Refresh Cycle Time (tRFC)	88
Command Rate (CR)	2T
Uncore Frequency	3347.0 MHz
 	 
Memory SPD	 
DIMM #	1 (all 3 DIMMs are the same)
    	SMBus address	0x50
    	Memory type	DDR3
    	Module format	UDIMM
    	Manufacturer (ID)	Corsair (7F7F9E0000000000)
    	Size	2048 MBytes
    	Max bandwidth	PC3-10700H (667 MHz)
    	Part number	CMP6GX3M3A1600C8
    	Number of banks	8
    	Nominal Voltage	1.50 Volts
    	EPP	no
    	XMP	yes
    	XMP revision	1.2
JEDEC timings table	CL-tRCD-tRP-tRAS-tRC @ frequency
    	JEDEC #1	6.0-6-6-16-23 @ 444 MHz
    	JEDEC #2	8.0-8-8-22-30 @ 592 MHz
    	JEDEC #3	9.0-9-9-24-34 @ 666 MHz
XMP profile	XMP-1600
    	Specification	PC3-12800
    	Voltage level	1.650 Volts
    	Min Cycle time	1.250 ns (800 MHz)
    	Min tRP	10.00 ns
    	Min tRCD	10.00 ns
    	Min tWR	15.00 ns
    	Min tRAS	30.00 ns
    	Min tRC	50.63 ns
    	Min tRFC	110.00 ns
    	Min tRTP	7.50 ns
    	Min tRRD	7.50 ns
    	Command Rate	2T
XMP timings table	CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
    	XMP #1	6.0-6-6-18-31-2T @ 600 MHz (1.650 Volts)
    	XMP #2	8.0-8-8-24-41-2T @ 800 MHz (1.650 Volts)

Updated the Rampage III Gene BIOS to the latest version 10xx. Having issues where the IOH voltage is dropping to 0 randomly at times. Wonder if it's related.