F3-12800CL7D-4GBRH : 2 version

[doof]

hi

Last year, I bought 2 * 2GB (F3-12800CL7D-4GBRH) . Last week
I bought the same memory F3-12800CL7D-4GBRH in order to have 8GB. When
I choose the XMP profile in the BIOS I see only 4GB on 8.
After research, it seems that the old memory either 1.60v
and the latest in 1.65v

1 / is it possible?
2 / is it possible to make a RMA return in order to have the same F3-12800CL7D-4GBRH ?

thanks

CPU : Intel Core i7 870
MB : P7P55D-E DELUXE




Memory SPD
-------------------------------------------------------------------------

DIMM # 1
SMBus address 0x50
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 2048 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number F3-12800CL7-2GBRH
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP yes
XMP revision 1.1
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 6.0-6-6-17-23 @ 457 MHz
JEDEC #2 7.0-7-7-20-27 @ 533 MHz
JEDEC #3 8.0-8-8-22-30 @ 609 MHz
JEDEC #4 9.0-9-9-25-34 @ 685 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.600 Volts
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 7.0-7-7-24-34-2T @ 800 MHz (1.600 Volts)

DIMM # 2
SMBus address 0x51
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 2048 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number F3-12800CL7-2GBRH
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP yes
XMP revision 1.1
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 6.0-6-6-17-23 @ 457 MHz
JEDEC #2 7.0-7-7-20-27 @ 533 MHz
JEDEC #3 8.0-8-8-22-30 @ 609 MHz
JEDEC #4 9.0-9-9-25-34 @ 685 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.650 Volts
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 7.0-7-7-24-34-2T @ 800 MHz (1.650 Volts)

DIMM # 3
SMBus address 0x52
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 2048 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number F3-12800CL7-2GBRH
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP yes
XMP revision 1.1
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 6.0-6-6-17-23 @ 457 MHz
JEDEC #2 7.0-7-7-20-27 @ 533 MHz
JEDEC #3 8.0-8-8-22-30 @ 609 MHz
JEDEC #4 9.0-9-9-25-34 @ 685 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.600 Volts
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 7.0-7-7-24-34-2T @ 800 MHz (1.600 Volts)

DIMM # 4
SMBus address 0x53
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 2048 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number F3-12800CL7-2GBRH
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP yes
XMP revision 1.1
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 6.0-6-6-17-23 @ 457 MHz
JEDEC #2 7.0-7-7-20-27 @ 533 MHz
JEDEC #3 8.0-8-8-22-30 @ 609 MHz
JEDEC #4 9.0-9-9-25-34 @ 685 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.650 Volts
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 7.0-7-7-24-34-2T @ 800 MHz (1.650 Volts)

[GSKILL TECH]

That is possible, but just use 1.65V. This kit is currently out of stock, so we do not have RMA replacements available.

Thank you
GSKILL TECH

[doof]

i have already try to set 1,65v but windows 7 only see 4 on 8 Go

[GSKILL TECH]

Try to reseat the memory, make sure it is firmly inserted. Sometimes one side is slightly up and it can cause this problem. It is common for this motherboard since there are only memory clips on one side.

Thank you
GSKILL TECH

[doof]

In bios, if i set all to "auto", all is working very well but i bought cas7 in order to use it and not cas9

set "auto" -> i see 8Go
set "XMP" -> i only see 4Go.
set "Manual" 7-7-7-24-2N 1.65v -> i only see 4Go

[GSKILL TECH]

Try raising IMC Voltage a tad to stabilize the memory controller.

Thank you
GSKILL TECH