apmorgan Posted June 24, 2009 Share Posted June 24, 2009 with 4GB of memory (i have done this with both pairs of 4Gig) I can overclock with XMP/profile1, but when I configure with 8GB of memory, when I select XMP options to choose a profile our disabled. Memtest runs clean on all 8GB of Ram. Thanks for any help Link to comment Share on other sites More sharing options...
Wired Posted June 24, 2009 Share Posted June 24, 2009 I believe that's normal. XMP is for one pair, not 2. Link to comment Share on other sites More sharing options...
Chiller Posted June 25, 2009 Share Posted June 25, 2009 Bullsh*-t, also when installing 8gb is possible to get XMP. But it is much better to set it manual, speed and timings. Why it sometimes whont boot with 8gb XMP, because they need something more voltage with more ram modules installed. it's like putting more lightbulps on one batterij, then they fade also Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted June 26, 2009 Corsair Employee Share Posted June 26, 2009 What is the part number of the memory you are using and what is the make and model of MB? Link to comment Share on other sites More sharing options...
Wired Posted June 26, 2009 Share Posted June 26, 2009 Both are in his profile. Link to comment Share on other sites More sharing options...
apmorgan Posted June 26, 2009 Author Share Posted June 26, 2009 Asus Maximus Extreme Bios 1202, Qx9650 and TWIN3X40961600C7DHXIN. So four slots of two gig each. Since a bought the memory a year later, CPU-Z reports a different part no: CM3X1024-1600C7DHX slots 1 and 3 CM3X2G-1600C7DHXIN slots 2 and 4 even though packaging is identical and part on packaging is: TWIN3X40961600C7DHXIN Right now I have some manual settings: CPU 3.2 (8x400) and DRAM DDR3-1600, not sure if stable yet, 1 crash in two days. Here is Everlast Memory profile: --------[ SPD ]--------------------------------------------------------------------------------------------------------- [ DIMM1: Corsair XMS3 DHX CM3X1024-1600C7DHX ] Memory Module Properties: Module Name Corsair XMS3 DHX CM3X1024-1600C7DHX Serial Number None Module Size 2 GB (2 ranks, 8 banks) Module Type Unbuffered DIMM Memory Type DDR3 SDRAM Memory Speed DDR3-1333 (667 MHz) Module Width 64 bit Error Detection Method None Memory Timings: @ 666 MHz 9-9-9-24 (CL-RCD-RP-RAS) / 33-60-4-10-5-5 (RC-RFC-RRD-WR-WTR-RTP) @ 592 MHz 8-8-8-22 (CL-RCD-RP-RAS) / 30-54-4-9-5-5 (RC-RFC-RRD-WR-WTR-RTP) @ 444 MHz 6-6-6-16 (CL-RCD-RP-RAS) / 22-40-3-7-4-4 (RC-RFC-RRD-WR-WTR-RTP) Extreme Memory Profile: Profile Name Enthusiast (Certified) Memory Speed DDR3-1600 (800 MHz) Voltage 1.90 V @ 800 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 36-88-0-5-12-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP) @ 685 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 31-76-0-5-11-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP) Memory Module Features: Auto Self Refresh Supported Extended Temperature Range Supported Extended Temperature Refresh Rate Not Supported On-Die Thermal Sensor Readout Not Supported Memory Module Manufacturer: Company Name Corsair Memory, Inc. Product Information http://www.corsairmemory.com/products/xms_home.aspx [ DIMM2: [ TRIAL VERSION ] ] Memory Module Properties: Module Name [ TRIAL VERSION ] Serial Number None Module Size 2 GB (2 ranks, 8 banks) Module Type [ TRIAL VERSION ] Memory Type DDR3 SDRAM Memory Speed DDR3-1066 (533 MHz) Module Width 64 bit Error Detection Method None Memory Timings: @ 533 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 27-59-4-8-4-4 (RC-RFC-RRD-WR-WTR-RTP) @ 457 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 24-51-4-7-4-4 (RC-RFC-RRD-WR-WTR-RTP) Extreme Memory Profile: Profile Name Enthusiast (Certified) Memory Speed DDR3-1600 (800 MHz) Voltage 1.90 V @ 800 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 41-88-2-6-12-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP) @ 685 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 35-76-2-6-11-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP) Memory Module Features: Auto Self Refresh Supported Extended Temperature Range Supported Extended Temperature Refresh Rate Not Supported On-Die Thermal Sensor Readout Not Supported Memory Module Manufacturer: Company Name Corsair Memory, Inc. Product Information http://www.corsairmemory.com/products/xms_home.aspx [ DIMM3: [ TRIAL VERSION ] ] Memory Module Properties: Module Name [ TRIAL VERSION ] Serial Number None Module Size 2 GB (2 ranks, 8 banks) Module Type [ TRIAL VERSION ] Memory Type DDR3 SDRAM Memory Speed DDR3-1333 (667 MHz) Module Width 64 bit Error Detection Method None Memory Timings: @ 666 MHz 9-9-9-24 (CL-RCD-RP-RAS) / 33-60-4-10-5-5 (RC-RFC-RRD-WR-WTR-RTP) @ 592 MHz 8-8-8-22 (CL-RCD-RP-RAS) / 30-54-4-9-5-5 (RC-RFC-RRD-WR-WTR-RTP) @ 444 MHz 6-6-6-16 (CL-RCD-RP-RAS) / 22-40-3-7-4-4 (RC-RFC-RRD-WR-WTR-RTP) Extreme Memory Profile: Profile Name Enthusiast (Certified) Memory Speed DDR3-1600 (800 MHz) Voltage 1.90 V @ 800 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 36-88-0-5-12-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP) @ 685 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 31-76-0-5-11-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP) Memory Module Features: Auto Self Refresh Supported Extended Temperature Range Supported Extended Temperature Refresh Rate Not Supported On-Die Thermal Sensor Readout Not Supported Memory Module Manufacturer: Company Name Corsair Memory, Inc. Product Information http://www.corsairmemory.com/products/xms_home.aspx [ DIMM4: [ TRIAL VERSION ] ] Memory Module Properties: Module Name [ TRIAL VERSION ] Serial Number None Module Size 2 GB (2 ranks, 8 banks) Module Type [ TRIAL VERSION ] Memory Type DDR3 SDRAM Memory Speed DDR3-1066 (533 MHz) Module Width 64 bit Error Detection Method None Memory Timings: @ 533 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 27-59-4-8-4-4 (RC-RFC-RRD-WR-WTR-RTP) @ 457 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 24-51-4-7-4-4 (RC-RFC-RRD-WR-WTR-RTP) Extreme Memory Profile: Profile Name Enthusiast (Certified) Memory Speed DDR3-1600 (800 MHz) Voltage 1.90 V @ 800 MHz 7-7-7-20 (CL-RCD-RP-RAS) / 41-88-2-6-12-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP) @ 685 MHz 6-6-6-18 (CL-RCD-RP-RAS) / 35-76-2-6-11-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP) Memory Module Features: Auto Self Refresh Supported Extended Temperature Range Supported Extended Temperature Refresh Rate Not Supported On-Die Thermal Sensor Readout Not Supported Memory Module Manufacturer: Company Name Corsair Memory, Inc. Product Information http://www.corsairmemory.com/products/xms_home.aspx Link to comment Share on other sites More sharing options...
Yellowbeard Posted June 26, 2009 Share Posted June 26, 2009 **********, also when installing 8gb is possible to get XMP. Please watch your language, that is not at all necessary or appropriate here. The official XMP standard from Intel does not include 4 modules. It can be done on some boards but not all which is apparent from this users results. It's dependent upon several factors including the MOBO BIOS. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted June 26, 2009 Corsair Employee Share Posted June 26, 2009 With 4 modules I would suggest setting the memory frequency at DDR1066 or DDR1333 and set the memory Voltage to 1.7-1.90 Volts and set the NB/MCH/SPP Voltage to +.05 Volts as well and test the system with http://www.memtest.org. In addition, with some MB's (Mostly ASUS) you have to disable legacy USB in the bios when running any memory test. Link to comment Share on other sites More sharing options...
apmorgan Posted June 26, 2009 Author Share Posted June 26, 2009 Ok, but the orginal posting was about XMP profile disabled. Should I be able to use XMP profiles with 4 sticks of 2GB RAM? and if yes do you think your Bios recommedations will affect whether option to choose XMP profile becomes enabled? That doesn't seem likely to me, especially since system has been running pretty stable -- no Memtest errors and vista x64 has been running well, yet in Bios the option to choose a XMP profile is disabled. Thanks for any help. Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted June 26, 2009 Corsair Employee Share Posted June 26, 2009 That is correct you will not be able to use XMP when mixing memory like that and would only be usable with one set. Link to comment Share on other sites More sharing options...
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