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sli-ready memory not dectected


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i have the 8500c5 and i can't use the sli function as it reads not detected and is shaded out with the defaults loaded.

i have tried raising the voltage to 2.0, 2.1 and 2.2 but still won't detect sli ready memory

i tried installing ntune with the bios defaults loaded and checking the option in there but it wouldn't take, have since removed ntune

i previously used asus p5n32-sli 590 premium and the sli function was not detected on it either which is why i moved to this board


is it bad ram or am i missing something


evga nforce 680i motherboard

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evga 680i with p-20 bios

everthing default except the memory voltage which is set at 2.2

timings are set at optimal, current value reads 5-5-5-18

i have tried setting them by hand using the same timings even

though everything i read they should be 5-5-5-15 and still i'm unable to get the sli-ready memory detected

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  • 11 months later...
can you PM me pls with ahswer too? I've BFG 680i LT sli and twin2x4096-6 640c5dhx 2x2gb 5-5-5-15 (though it sais 5-5-5-18 on the sticks themselvs)


and it also sais not SLI ready in bios..

You have an entirely different set of memory so the fix for Texran does not apply to your specific memory. Do you have the latest bios from BFG loaded?

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Not sure why it would not see the EPP profiles. When in the OS, can you look at the system with the latest version of CPU-Z and see what is shows under the SPD tab? Also, you mayt want to try clearing the CMOS and booting with only 1 module. Have you cleared the CMOS since your last flash?
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would you be kind to mention some of the settings?


(the system hangs sometimes when default settings in bios loaded) and wont even boot to bios untill I remove one of the memory cards. Then, after going to bios (and not rly doing anything) it boots again with the second 2gs in... happens ones every couple of boots...

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  • 2 months later...

Hi, Please help


My Asus striker extreme mobo does not detect my SLI ready memory (8500C5D). I have set every thing default & did tried to raised memory voltage to 2.2 but nothing happen. My computer spec as follow:

Asus Striker Extreme

Intel Core 2 Duo E6700

Corsair 8500C5D (x2 two GB module = 4GB)

x2 Asus EN8800GT SLI

Window Vista 32bit

x2 Western Digital 70GB (RAID 0). x1 Seagate 320GB

Toughpower 750


Thank you so much for your help.

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Hi, Thank you so much for quick responded


I have set the memory timming & voltage manually as you mention.


Mem speed 1066

tcl (cas latency) 5

tRCD 5

tRP 5

tRAS 15

Command Per Clock (CMD) 2Clock

Mem Voltage 2.200V


The rest of the setting is default, but my mother board still said "SLI Memory Not Detected". There is a setting call "SLI Broadcast Aperture" & "Nvidia GPU Ex" should I enable it for my mobo to detect SLI Mem?


Thank you again.

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  • Corsair Employees
We do not offer a 2.0 Gig 8500C5 module, are you saying that you have 4 1.0 Gig modules installed? If so then that is correct you would need to disable SLI Ready Memory and set the settings manually to Cas 5-5-5-15 at 2.1 Volts at DDR800.
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Yes I have four 1.0 gb module installed. So is that mean that i have to set the mem speed manually & the bios will not detect SLI mem is that correct?

What if i only have two 1.0gb memory install will my mobo dectect mem as sli memory or do i have set something?


Thank you

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Now that I have 4GB total of memory is that mean that it wont run as SLI mode am i correct? SLI memory mode only run on one set of memory (8500CD5) is that right? or other word if i want to run my mem in SLI mode then i have to remove 1 set of my memory? if so which is better 1 set of memory in SLI mode or 4GB in NONE SLI mode?


Thank you so much RAM GUY, you have been a great help.

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