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CPU/Mobo settings with ddr3 ram. what do i need to change?

Last response: in Memory
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January 11, 2012 8:05:38 PM

Okay I just recently purchased 2x4gig DDR3-1600mhz G.Skill Ripjaw modules
In the machine was G.Skill 2x2gig DDR3-1600mhz (timing,voltage,mhz all same)
So I just went ahead and left them in even though they do not have nice heatshrinks like my new ones I figured I would try. Here is a link to them:

http://www.newegg.com/Product/Prod [...] 6820231193 ----OLD RAM
http://www.newegg.com/Product/Prod [...] 6820231314 -----NEW RAM

The other two important parts are:
Mobo: Asus M4A78T-E
CPU: Phenom II X4 945 DENEB 95w

http://www.newegg.com/Product/Produc...82E16813131366 -MB
http://www.newegg.com/Product/Produc...82E16819103809 -CPU

Okay I have the Ram set to 1600mhz in Bios CPU-Z has 800mhz for first two slots were the new ram is so that is correct, and the two slots with old ram it has 667mhz listed. So I think that is my first problem and might just have to take those sticks out. Also even though there timing is supposed to be 9-9-9-24 it seems like the timings are diffrent on the sticks, maybe I am wrong. Below I have posted the read outs with timings from cpu-z for you guys to look at. The other big question is what should I really have it set at with the Mobo/Cpu combonation I provided above. Is 1600mhz okay? I am overclocked on the cpu right around 3.2ghz right now. After I figure out were to have the ram set, I am going to try pushing my CPU up to 3.2 or 3.4ghz that is the next step. But one thing at a time. Let me know if you guys need anymore info, and thanks in advance

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

DIMM # 1
SMBus address 0x50
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 4096 MBytes
Max bandwidth PC3-12800 (800 MHz)
Part number F3-12800CL9-4GBRL
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 6.0-6-6-16-22 @ 457 MHz
JEDEC #2 7.0-7-7-19-26 @ 533 MHz
JEDEC #3 8.0-8-8-22-30 @ 609 MHz
JEDEC #4 9.0-9-9-24-33 @ 685 MHz
JEDEC #5 10.0-10-10-27-37 @ 761 MHz
JEDEC #6 11.0-11-11-30-41 @ 838 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.500 Volts
Min Cycle time 1.250 ns (800 MHz)
Min tRP 11.00 ns
Min tRCD 11.00 ns
Min tWR 15.00 ns
Min tRAS 30.00 ns
Min tRC 49.00 ns
Min tRFC 137.50 ns
Min tRTP 7.50 ns
Min tRRD 6.00 ns
Command Rate 2T
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 9.0-9-9-25-41-2T @ 818 MHz (1.500 Volts)

DIMM # 2
SMBus address 0x51
Memory type DDR3
Module format UDIMM
Manufacturer (ID) G.Skill (7F7F7F7FCD000000)
Size 4096 MBytes
Max bandwidth PC3-12800 (800 MHz)
Part number F3-12800CL9-4GBRL
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 6.0-6-6-16-22 @ 457 MHz
JEDEC #2 7.0-7-7-19-26 @ 533 MHz
JEDEC #3 8.0-8-8-22-30 @ 609 MHz
JEDEC #4 9.0-9-9-24-33 @ 685 MHz
JEDEC #5 10.0-10-10-27-37 @ 761 MHz
JEDEC #6 11.0-11-11-30-41 @ 838 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.500 Volts
Min Cycle time 1.250 ns (800 MHz)
Min tRP 11.00 ns
Min tRCD 11.00 ns
Min tWR 15.00 ns
Min tRAS 30.00 ns
Min tRC 49.00 ns
Min tRFC 137.50 ns
Min tRTP 7.50 ns
Min tRRD 6.00 ns
Command Rate 2T
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 9.0-9-9-25-41-2T @ 818 MHz (1.500 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 F3-12800CL9-2GBNQ
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP yes
XMP revision 0.0
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 8.0-8-8-22-31 @ 609 MHz
JEDEC #4 9.0-9-9-25-34 @ 685 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.500 Volts
Min Cycle time 1.250 ns (800 MHz)
Min tRP 11.00 ns
Min tRCD 11.00 ns
Min tWR 15.00 ns
Min tRAS 30.00 ns
Min tRC 49.00 ns
Min tRFC 110.00 ns
Min tRTP 7.50 ns
Min tRRD 6.00 ns
Command Rate 2T
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 9.0-9-9-25-41-2T @ 818 MHz (1.500 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 F3-12800CL9-2GBNQ
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP yes
XMP revision 0.0
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 8.0-8-8-22-31 @ 609 MHz
JEDEC #4 9.0-9-9-25-34 @ 685 MHz
XMP profile XMP-1600
Specification PC3-12800
Voltage level 1.500 Volts
Min Cycle time 1.250 ns (800 MHz)
Min tRP 11.00 ns
Min tRCD 11.00 ns
Min tWR 15.00 ns
Min tRAS 30.00 ns
Min tRC 49.00 ns
Min tRFC 110.00 ns
Min tRTP 7.50 ns
Min tRRD 6.00 ns
Command Rate 2T
XMP timings table CL-tRCD-tRP-tRAS-tRC-CR @ frequency (voltage)
XMP #1 9.0-9-9-25-41-2T @ 818 MHz (1.500 Volts)



a b } Memory
a b à CPUs
January 11, 2012 8:47:17 PM

Go into the BIOS and manually set things. Timings, voltages, and speed. XMP may be screwing things up with the different memory. Not sure though.
January 12, 2012 1:38:18 AM

So the timings are diffrent there are so many timings there was not 100 percent sure. Okay I will do that, but what about the motherboard and cpu will it be okay with 1600mhz
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Best solution

a b } Memory
a b à CPUs
January 12, 2012 1:36:16 PM
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devilhanzou said:
So the timings are diffrent there are so many timings there was not 100 percent sure. Okay I will do that, but what about the motherboard and cpu will it be okay with 1600mhz

Yes, it will work with both the board and CPU.
January 12, 2012 10:36:18 PM

Best answer selected by devilhanzou.
!