ASUS Official X79 Motherboards Support Thread

[pazza316]

The 20uf setting made the most difference for me mdzcpa

[mdzcpa]

I can now confirm my cold boot issue is fully resolved with the settings noted in my last post.
Even better, I am now back at 5Ghz with ram at 2133
I will try for 2400mhz when I get home from work tonight.

The 20uf setting made the most difference for me mdzcpa

I agree...this was the key.

I will slowly tweak the voltages around and try to settle them at the lowest workable values along with tightening the ram if possible.
On a final note, I want to thank Raja and Shamino for thier time. There is no other brand that even compares to this kind of support response. I made the right choice on this mobo and I couldn't be happier

[LardArse]

Cool, strangely though at your settings the 'Auto' would be regarded as 20UF by the BIOS, heh not sure why manually setting it to the same setting may fix it :P

[pazza316]

It is very strange then Shamino, but it has worked for me. Also with the 20uf setting I am able to push BLK to get exra from my RAM at the same timings. Without the 20uf I cant push BLK hardly at all without getting instability. I tested this earlier today. I put in all the memory settings manually that XMP was setting as 2133 mhz then I got past 2250 easy. Stable and all benchmarks improved accordingly with CPU speed at 5.0 - 5.1ghz

In all honesty Shimano I think some items in Bios do not always save or get applied correctly. I experienced this when I tried 0091 Bios and 0083b. You said on 0091 the auto was Rampage tweak one. My system was stable at auto when I initially installed the bios. But to get more speed I set tweak 2. Unstable!!!. Went back to auto still unstable. Set to Tweak 1 back to stable again. So manually setting Tweak 1 was the only setting I changed to get this stability. My stable being Linx, Prime, Aida, 3D mark, Cinebench, Pi and all my games. Linx I ran 150 loops while sleeping and prime for over 12 hours while I was at work. So from my hours spent on this board with on this bios I am sure in order to be certain a value has stuck in bios you need to set that value manually. This may explain the 20uf and setting it manually.

[LardArse]

so 2250 stable with 32GB Hynix? I'd be happy with that man especially when bundled with a high cpu speed

[pazza316]

Yes I am happy I am just short of 5.1 with 32gb Hynix. Just letting you know what I have observed. Always happy with the board and the support it offers some great features. Quad SLI next!!!

[LardArse]

haha thats cool , you're really stress testing the board now, 32GB 2200+, 5+G, and then finally pcie slots packed with cards

[pazza316]

I have tri sli now and all is well so I am ready to push it further!!! lol. Its a great board. I am gonna watercool the board at the same time as fitting the new card. With the Koolance blocks in place which places on the board could still need active cooling with fans???

[LardArse]

the hottest area would definitely be the VRM north of the cpu socket. depends on how your block cools it you can double check if this area gets hot with just touching it and decide if you need air or not. the rest of the board would not need anything.

[pazza316]

Its a two piece cooling system and has a dedicated block just for those VRM's . I will check with my hand to make sure the block is taking away all the heat. I have not got the Blocks yet just getting the heads up from you before they arrive.

[mdzcpa]

I can confirm what paza316 is saying. Auto for sure doesn't work for me. I need the manual 20UF. This is on BIOS 0803 however. Not sure if that's an issue.

Haha...and we are all pushing now....my 3rd water block just arrived from Koolance and this weekend I'm stepping up to Tri-fire. I also ordered up the new Koolance mobo block for the RIVE as well! Going with this hotrod mobo has completely renewed my passion for hardware..LOL!

[pazza316]

its the same on both 0803 and 0901 mate. For me you actually have to set 20uf on both. With 4 sticks you should be able to get 2400mhz stable RAM.

[CosmoJoe]

Hey there,

Hoping someone can make a suggestion here. I have been doing some further testing to address an unstable system build. I have the P9X79 WS with G.SKILL Ripjaws Z Series 1600 and cannot run with all 8 banks populated. At first I thought I had flaky RAM but took 4 sticks out, noted the system was then stable, and swapped out the 4 I had taken out. The RAM is OK, but with all 8 DIMMs installed I get funky video artifacts, windows lockups, etc. Is there a BIOS update I might try that isn't posted on the Asus site or perhaps do you think the 20uf setting mentioned will help? Is this a RAM compatibility issue with the model I am using?

Thanks in advance!

[mdzcpa]

its the same on both 0803 and 0901 mate. For me you actually have to set 20uf on both. With 4 sticks you should be able to get 2400mhz stable RAM.

BAM! 5Ghz & 2400mhz!!
I had some instability with only XMP settings and 20uf.
I nudged the ram up to 1.675v, vccsa down to 1.32v, VTT down to 1.3v (both from 1.35v at Auto), and there we go. Linx, Prime and 3D stable...and no cold boot issues thus far.

I'm loving this system now. I think I could have arrived here faster if I had more OC experience on these Rampage boards and Sandy Bridge. But hopefully other's can learn from my posts.

[pazza316]

Yeah I knew you would get 2400 its easy with 4 dimms. My CPU 5.0 - 5.1 depending on BLK and Strap, with 4 DIMMS at 2400+ only needs 1.25 VCCSA and 1.2VTT.With 1.675 you should be good with 10-11-10 - 27 2N or tighter, experiment. To be honest I dont care what these two voltages ( VCCSA and VTT) are set at anyway so long as they are below 1.4 and the system is stable with good temps.

[OC Nub]

No cold boot problem this morning with 20uf set manually, memory at 2400. Thanks for the tip guys.

[pazza316]

No problem. Just stumbled across it but found it works for me universally.

[christefan]

christefan
you should not be hooking up the sli connector from 580 to 560.

I removed it and will see how it goes--I thought you could use a SLI connector and have the 560ti do physics? The latest problem is it keeps dropping the 2nd 580 so then I lose SLI, could this be the board, should i be looking for a bad card or driver issue? Using the latest nvidia 290.36 drivers?

[pazza316]

Christefan if your dropping a card in SLI try disabling HPET in Bios. Its under advance tab PCH setting I think. This helped my stability in SLI alot.In fact its never been anything but 100& since!!!

[OC Nub]

Got home from work and hit the power button, the pc is booting flawlessly now.

[mdzcpa]

Got home from work and hit the power button, the pc is booting flawlessly now.

Same here!

[ELP3]

Hi guys.

Sorry for my English.

I have a problem with the Rampage IV.

I think the sensor VCSSA is wrong. 2V is a savage, I have it in manual to 1.20 V, but the sensor is always between 1.95 and 2V.

Do you think that is the problem of sensor or MB? because if really apply 2V, my wonderful CPU will say goodbye soon...

The maximum voltage is 1.7 V VCSSA is why I think it is because sensor error happened to me with 2 CPU.







Thanks and regards..

[Tutto]

Will Asus be releasing Network, Wifi and Bluetooth drivers for Server 2008R2for the P9X79 Deluxe? I was able to manually load the Intel Nic and the Wifi but I haven't been able to get the Bluetooth working

[OC Nub]

Hi guys.

Sorry for my English.

I have a problem with the Rampage IV.

I think the sensor VCSSA is wrong. 2V is a savage, I have it in manual to 1.20 V, but the sensor is always between 1.95 and 2V.

Do you think that is the problem of sensor or MB? because if really apply 2V, my wonderful CPU will say goodbye soon...

The maximum voltage is 1.7 V VCSSA is why I think it is because sensor error happened to me with 2 CPU.


Thanks and regards..

Test voltage with a multimeter, cant always believe the software.

[ELP3]

Test voltage with a multimeter, cant always believe the software.

I have thought ..

But do not use it ...

It has many options, DCMA, DCV, ACV + .. etc. .. Omhios 500,50,0,5 .. I have not ever used and I get a mess ...