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TWIN2X4096-8500C5DF in Asus Striker extreme


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Please can I ask some help I just upgraded to TWIN2X4096-8500C5DF 2x 2gigs in ASUS STRIKER EXTREME bios 1503 using just the blue slots changed to 5-5-15 2t 2.1 volts and all I get is 800 mhz I cant seem to get 1066 at all


my cpu is Intel Core 2 Quad Q6700 Kentsfield 2.66GHz 2 x 4MB L2 Cache


the bios is telling me that 1066 is possible but actual is 800


Please let me know what other setting in striker extreme might help me



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Download memtest from--->
and extract the ISO image. Burn the ISO image to an CD-ROM disk.

Enter your BIOS and set to these values:

Multiplier = 10

FSB = 266

DRAM = Unlinked and set to 1066Mhz


Memory Timing


FSB - Memory Clock Mode: Unlinked

CPU FSB: 266

CPU Multi: 10

DDR FSB: 1066

tCL: 5

tRCD: 5

tRP: 5

tRAS: 15


Advanced Memory Settings


tRRD: 5

tRC: 24

tWR: 6

tWTR: 8


tRD: 7

tRFC: 42

Async Latency: AUTO





Vcore = Auto

Vdimm (DRAM Voltage) = 2.1v

Termination Voltage = Auto

1.2v HT: Auto

NB Vcore: 1.35v

SB Vcore: Auto



Boot to the Memtest CD. Allow for two full passes.



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Hi did what you recommended as good as I could






I COULD NOT FIND IN BIOS 1503 striker extreme HOW TO SET

Multiplier = 10

FSB = 266









5 24 6 8 AUTO 7 42 AUTO


the way my bios is set up is as follows


FSB Memory Clock Mode : Unlinked

FSB Memory Ratio Mode set to(auto) I dont know what is 1:1, 5:4, 3:2. sync mode is (*if you could let me know what is correct setting here is ?)


FSB (QDR)MHz Actual 1066 mhz


Memory (DDR) MHz 800 MHZ DEFAULT I change this to 1066 as requested


Also one small note on my specific Bios 1503 the setting you posted above in Advanced Memory settings called "CMD:2T" There is no setting there at all in advanced there is however an ability to set clock to value 2T in regular memory settings and every time I do set that to 2t ,the system crashes and does not boot at all only option to go back to bios


Mem Test results


WallTime Cach RsvdMem MemMax Cach ecc Test pASS ERRORS


1:33 4096 52m E820-std ON off STD 2 TIMES None



No errors all passed perfect



Memory still stays at 800mhz and does not change to 1066mhz



Still no luck in ability to use epp settings even when I changed all the settings I could


Please let me know any other ideas

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I don't know why you can not find the settings. This is from the Striker Extreme Manual. Maybe you need to flash your BIOS to the latest version. Please do NOT show angry faces. Angry faces make me want to stop helping.


AI Tuning: Manual

Nvidia GPU Ex: Disabled

LinkBoost: Disabled


FSB - Memory Clock Mode: Unlinked

x FSB - Memory Ratio: N/A

FSB (QDR), Mhz = 1066

Actual FSB (QDR), Mhz = 1066

MEM (DDR), Mhz = 1066

Actual MEM (DDR), Mhz = 1066

Vcore Voltage = Auto

Memory Voltage = 2.1v

1.2v HT Voltage = Auto

NB Core Voltage = Auto

SB Core Voltage = Auto

CPU VTT Voltage = Auto

DDRII Controller Ref Voltage = Auto

DDRII Channel A Ref Voltage = Auto

DDRII Channel B Ref Voltage = Auto


tCL (CAS Latency) = 5

tRCD = 5

tRP = 5

tRAS =15

Command Per Clock (CMD) = 2T


Advanced Memory Settings


tRRD = Auto

tRC = Auto

tWR = Auto

tWTR = Auto

tREF = Auto

tRD: Auto

tRFC = Auto

Async Latency = Auto


CPU Spread Spectrum = Disabled

PCIE Spread Spectrum = Disabled

MCP PCIE Spread Spectrum = Disabled

SATA Spread Spectrum = Disabled

LDT Spread Spectrum = Disabled


CPU Internal Thermal Control: Enabled

Limit CPUID MaxVal: Disabled

Enhanced C1 (C1E): Enabled

Execute Disable Bit: Enabled

Virtualization Technology: Disabled

Enhanced Intel Speedstep Tech: Enabled

LDT Frequency: 5x


PCIEX16_1 Frequency (Mhz): 101

PCIEX16_2 Frequency (Mhz): 101

PCIEX16_3 Frequency (Mhz): 101

SPP<->MCP Ref Clock, Mhz: 201


Try once again. Memtest. You can always try the white slots.

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sorry for doing the face thing I was just frustrated with Asus really I am very happy with the TWIN2X4096-8500C5DF because I previously had 4x1 TWIN2X2048-8500C5D and as you know and I now know 2 sticks are better than 4




checking out the additional stuff now and I post results tomorrow Thanks for helping out!





ps: I am using the latest bios 1503 and they may be a bug in the bios itself because there are many people complaining that they cannot overclock that bios only time will tell

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Just a heads to Corsiar and the Asus Striker Extreme Bios 1503 has a bug in it and does not allow saving of memory info!


So I downgraded to bios 1305 and can run the memory at 1066 MHZ



Thanks for everything and great help !



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Hi Just in case anyone using Asus Striker Extreme runs into problem with bios 1503 here is a short fix to get back to previous bios 1305 here is a procedure under XP pro



1305 bios be back with command


from dos prompt awdflash /f /cc 1305.bin (on a floppydisk)

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  • 4 weeks later...

i have similar config... TWIN2X2048-8500C5D striker 1503 nd so on

nd the same problem... frequencies dont save

however i wasnt able to downgrade back to 1303 or 1305 as

1503 locks any downgrading so my question, though may be noob, is

how did u do it?

any help would be much appreciated:):

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  • Corsair Employees
You will have to use the AFUDOS and boot to Win9X Boot Disk and flash it from a HDD or Flash Drive from DOS. I would strongly you talk to the MB maker and have them help you so you do not end up with a dead MB.
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