A8N-SLI Deluxe overclocking weirdness

[Entz777]

Hey all,


Got trouble with settings for overclocking an Asus A8N-SLI Deluxe. I
can't seem to simultaneously set the memory speed and overclock the
system!


For example, If I set the overclocking mode to manual, I can raise the CPU up from 200x9 to 250x9 (having reset the HT multiplier to 4x) but this sets the
memory speed into Auto mode. Using CPU-Z it shows a memory speed of
100 MHz instead of 250, and this is confirmed with a few benchmark runs
showing a drop compared to stock speeds since the memory is running at
half speed. I've got some nice PC4400 cl 2.5 memory from Corsair, but obviously
not making the most of it.


Alternatively, if I set the memory speed manually, the overclocking
option gets set back to Auto (i.e. none). Therefore I seem to have two
options - 1.8 GHz (stock) CPU speed with 250 MHz RAM, or 2.4 GHz CPU
with 100 MHz RAM.


System details:
Asus A8N-SLI Deluxe
Athlon 64 3000+ (Winchester core)
1 GB (2x512) Corsair PC4400 CL2.5
Gainward GeForce 6800 GT


Any ideas for what to do next?

Enn

 

[Relion]

Originally posted by: Entz777
Hey all,


Got trouble with settings for overclocking an Asus A8N-SLI Deluxe. I
can't seem to simultaneously set the memory speed and overclock the
system!


For example, If I set the overclocking mode to manual, I can raise the CPU up from 200x9 to 250x9 (having reset the HT multiplier to 4x) but this sets the
memory speed into Auto mode. Using CPU-Z it shows a memory speed of
100 MHz instead of 250, and this is confirmed with a few benchmark runs
showing a drop compared to stock speeds since the memory is running at
half speed. I've got some nice PC4400 cl 2.5 memory from Corsair, but obviously
not making the most of it.


Alternatively, if I set the memory speed manually, the overclocking
option gets set back to Auto (i.e. none). Therefore I seem to have two
options - 1.8 GHz (stock) CPU speed with 250 MHz RAM, or 2.4 GHz CPU
with 100 MHz RAM.


System details:
Asus A8N-SLI Deluxe
Athlon 64 3000+ (Winchester core)
1 GB (2x512) Corsair PC4400 CL2.5
Gainward GeForce 6800 GT


Any ideas for what to do next?

Enn

Try this:
Go to CPU Configuration menu...enter DRAM configuration and make sure u have DDR400 selected ... press escape and make sure HTT is set to 4X ... press escape again

Go to Jumperless Configuration and set to manual, ...put Frequency to 220, CPU voltage on auto DDR frequency on auto, PCI express to 100Mhz, PCI to 33.33Mhz....press escape twice and go to boot menu....set first device REMOVABLE, second HDD....press F10 and save....and then reenter BIOS....go to CPU Configuration menu again and make sure frequency for CPU (the grey letters) is 2200Mhz...if yes...success....from there on repeat upping the Frequency....

Edit: After success u can disable removable from boot.

 

[GuitarDaddy]

I have the same board, and as long as you set the DDR settings first you can then make changes in the Jumperfree section and the DDR settings won't change. But if you make the jumperfree changes first, when you change the DDR settings the jumperfree sections will revert to Auto(default settings)

I will warn you however that this board has a 240mhz 1T limit, which means you can only overclock your ram past 240mhz if you use the 2T command rate. Which means your nice PC4400 overclocking ram is pretty much worthless on this board The bright side is overclocked ram doesn't mean squat (performance wize) on A64's unless sythetic benchmarks are important to you

 

[Entz777]

Thanks!!!!
Now off I go to the BIOS!

Cheers,
Enn

 

[Doctorweir]

In the newer BIOSes they removed this AUTO/AUTO deadlock I think...only occured when I had the very old like <1006 BIOSes.
Another trick to remove it was to set Memory to manual and CPU to auto. Then use some SoftFSB tool like Clockgen or the Asus stuff and adjust the HTT a bit.
Go back into BIOS and voila: both settings @ manual