Asus M3A78-T + 9950BE overclocking... wow its all new again

[Jimmer411]

Well I've had a day to play witb my new setup and without access to XS.

Now I'm not used to the bios layout of the asus, as I'm used to dfi and biostar more so there are a few new things that I have no idea wtf they are for or do.



So far just using multi adjustments and vcore increases I can get into windows at 3ghz and almost get in at 3.4. Adjusting the fsb from 200 to 350 and setting the multi at 10x attempted to boot at 4.55ghz! WTF!

How does fsb work on phenom? Is it now based on the cpu multi?


What's the difference between processor nb vcore and nb vcore? Even under northbridge I can adjust cpu vcore... I'm lost totally.


So what do the resident experts have to say? Brother...I need ya




I forgot to add this was all on stock hsf. So once I put 1.45v temps hit 60c+

I'm hooking up the watercoolin now so the only access I got is from my phone



Ill be updating this thread with new information and pictures of my progress. If possible I would like to make this an ASUS SB750 mobo tweaking thread

[jonspd]

LOL 4.55ghz nice...

There is a thread somewhere

cant find it ATM but it shows how all the clocks are related via cpu-z and such.

[Final8ty]

Its better to over clock with the MULTI than the FSB on the Phenom.
So if your getting them sort of OC's doing it the hard way then you may get 3.55ghz stable doing it the other way.

[Cooper]

NB Vcore is 790FX voltage
Processor NB Vcore is related to memory controller
And AMD stopped using FSB 4 years ago so please stop using this term

[soundood]

NB Vcore is 790FX voltage
Processor NB Vcore is related to memory controller
And AMD stopped using FSB 4 years ago so please stop using this term

you are indeed very correct about that cooper, but many and i mean many, (as you know (including many top hardware review sites)) still refer to the bus as FSB, and for calculation of ht and so on, is less confusing for people who are not familiar with the new system layout.

if you have a real need to stop this, then i would suggest starting with the 'tech guys' who know all about HT's and so on, on the big review sites tomshardware, extremetech, and so on, who still use this term.

then we might not have people being confused about this, when they enter the forum.

there is a long way to go, and will get even more confusing when Intel start this change as well (eventualy)

we can only try

[gOtVoltage]

I still have the Old school AMD habit of calling it FSB when its CPU Freqency Bus or HT.


All i know is you raise the CPU bus either way you slice it

[Jimmer411]

NB Vcore is 790FX voltage
Processor NB Vcore is related to memory controller
And AMD stopped using FSB 4 years ago so please stop using this term

That about the time I stopped using FSB also. That's why I was a bit shocked when I seen a setting in my bios labelled FSB. I figured I would use the term used in the bios just incase that's something common to asus mobos and since adjusting it didn't have the same effect adjusting HTT did on all my other mobos.


Anyways any tips on overclocking these things? Like safe maximum voltages for each thing?

[@@@@]

4.55 Ghz WOW

any screen shots just to tease us

and also

@ Jimmer411 I suggest you pm HondaGuy he has a lot of experience with Phenoms he was able to get 3.5 Ghz stable on at 9850 Phenom

[Jimmer411]

4.55 Ghz WOW

any screen shots just to tease us

and also

@ Jimmer411 I suggest you pm HondaGuy he has a lot of experience with Phenoms he was able to get 3.5 Ghz stable on at 9850 Phenom

Haha 4.55ghz was what was shown at the post screen. By no means was it actually running at that. If I tried I imagine I could get it to show 9ghz at the post screen.

Windows, I was almost able to get in at 3.4. But any number of things coulda been holding me back since it was on the stock hsf. Thanks for the heads up, ill pm him

[gOtVoltage]

@ Jimmer 86 the stock HS or lap it smoother and use MX2 or As5.. your results will be little cooler all the time// with colder LOAD temp. The stock HS is a little rough and will use more paste than if you had it lapped.Thus the rougher it is the more the CPU hold the heat and dosnt transfer it as good.

Every little bit helps with phenom ,, Especially when you choose to run the Stock cooler

Look for a setting that canges CPU to SB/NBvolts .. helps stabilize the ram while running tigh timing at High freqency with a high NB.
Only a little extra is needed..

Example: Say stock is (1.20v then bump it to 1.25v/1.30v) This also helps when running 1 or 2gig sticks in all four slots. More Mem will usually need more Volts to stabilize the ram.

Also make shure you have the 0306Bios has many updates ..
Ill checking the manual out to see what settings are availiable for volts...will post in a few what i find.


1st ,, These two VOLTAGE settings

(Processor VOLTAGE) = CPUvid or Vcore
(Processor -NBvoltage) = NBvid on the CPU,,NBvcore

Which you can see below.. 9x50 Phenom x4's can run 1.55 for both if you have enuff cooling.. 1.31 will be ctock for CPU and 1.25 should be stock for NB.. I usually Raise the NB up to Match the CPUvid when i use High NB clocks and CPUclocks.

Example :
3.2ghz//2200mhz Nb stock volts only for my 9950.
3.3ghz CPU = 1.35/1.37v and with 2200mhz Nb= 1.35v

3.4ghz CPU = 1.40/1.48v and with 2500mhz NB = 1.40/1.45v

3.4ghz+ CPU = 1.55v and with 2600mhz+ NB = 1.55v ,,do not exceed 1.55v with the NB..

The NB will max @ 2700mhz no matter the volts..Has to do with HTlimits and Heat.

The CPU ive reached 3.55 with 1.62v but my Mobo cant handle it,, its only SB600 hahaaa.




2nd,,
Clocking the HTT and or go above 3.0ghz using the CPUxmultis you need to run the CHipset for NB @ 1,27-1,30v..

This is with in its spec range..This will be needed to keep the Ram stable while comunicating to the IMC on the CPUNB..Allows for tighter timing @ Overclocked and High Freqency settings.

3rd,,
Setting HT volts,, Allows for higher HTclocking..
You will have to enable(NorthBridge VOLTAGE) to(MANUAL from Auto) for the HTvoltage setting to appear.

Set it to 1.30v- 1.35v max.. Every mobo ive set did not need more than 1.35v max to go High HTT 280+/300+..



Hope that helps ya little bit...Ill be tweaking 790GX//FX at the end of the month..So im looking at most of the manuals for which Mobo's have what..Yours has all the right Options for a wicked Oc just so you know,,Its cheaper than it big brother the 9

[Jimmer411]

Haha the stock hsf was only a temporary solution so I didn't have to tear down my watercooling just incase something didn't work I'd still have full net access.


I've already got most of my loop setup in my ufo, it should be up and running tonight on water. Is phenom really that sensitive to heat?

[gOtVoltage]

Haha the stock hsf was only a temporary solution so I didn't have to tear down my watercooling just incase something didn't work I'd still have full net access.


I've already got most of my loop setup in my ufo, it should be up and running tonight on water. Is phenom really that sensitive to heat?

Ive found the Stock Hs really cooks things even @ stock Volts...They are like little Microwave ovens,,haaa newsFlash How to BBQ with AMD


Phenoms breath Fire ,, there fore i giveth them water

[HondaGuy]

Thinking about running water on my rig,, Zalman 9700 is working, any suggestions, on what I should be looking for....Thanks

[Jimmer411]

I was able to see idle temps with in 1-3c of ambient and load temps no higher than 40c on my am2 rig. Ill post my phenom temps once I have it running later on this evening (after work).

For equipment I'd reccomend the stuff in my sig, tho replacing the block with an apoge gtz or fuzion v2, which I plan on doing.

[QuietIce]

For equipment I'd reccomend the stuff in my sig, tho replacing the block with an apoge gtz or fuzion v2, which I plan on doing.

Dual MCP655 is pushing for the average OC'er. I run double pumps too but I've got them both turned down to P3.1± to keep them silent (they're external). The main reason I went with dual pumps was the same reason I have 320 Gb of RAID1.

I'm looking forward to playing with this same set-up - 9950BE and the M3A78-T w/DDR2-1066 RAM (for the first time!). It's all here in the boxes but I'm kinda' busy at home this weekend - just enough time to stop in for a browse then back to the Honey-Do's ...

[Jimmer411]

Dual MCP655 is pushing for the average OC'er. I run double pumps too but I've got them both turned down to P3.1± to keep them silent (they're external). The main reason I went with dual pumps was the same reason I have 320 Gb of RAID1.

I'm looking forward to playing with this same set-up - 9950BE and the M3A78-T w/DDR2-1066 RAM (for the first time!). It's all here in the boxes but I'm kinda' busy at home this weekend - just enough time to stop in for a browse then back to the Honey-Do's ...

True dual is overkill. At the moment Im only running 1 on the phenom system as Im going to use the other one in my wifes build down the line.

Im running my ram at DDR800, it will do DDR1066 but I dont like the idea of putting more than 2.1v to my ram as Ive already killed 3 sticks of Ballistix in the past at 2.2v and 2.3v.

[Jimmer411]

Well Im sitting in windows at 3.4ghz right now after finally getting things all setup and I am working on stability as I type this.

Here is CPU-Z validation aswell http://valid.x86-secret.com/show_oc.php?id=414548


Right now its mostly just a multi overclock. I did drop ramspeed from DDR800 to 667 and set it to 2T aswell as dropping HT link speed to 1800 for now, Im hoping both of those will increase as i tweak things.

[leoy]

@ Jimmer i am thinking of getting m3a78-t too...
I just rma'ed my crosshair II and thinking of taking instead the 790gx.
My 9950 only went to 3.2 and not stable on the crosshair II....
Will this do anything better or should i stick to a cheap board and w8 for something better?

[informal]

Well Im sitting in windows at 3.4ghz right now after finally getting things all setup and I am working on stability as I type this.

Here is CPU-Z validation aswell http://valid.x86-secret.com/show_oc.php?id=414548


Right now its mostly just a multi overclock. I did drop ramspeed from DDR800 to 667 and set it to 2T aswell as dropping HT link speed to 1800 for now, Im hoping both of those will increase as i tweak things.

That's one great result right there man !
For a dude coming from 3800+x2 you are managing the Phenom and taming it rather well .

[gOtVoltage]

3.4ghz ,,very nice....

Just think that at one time it cost $250+ just to get a 3.4ghz X2..

Now @$176 and lower 9x50'sPhenoms to 3.4ghz is definatly Bang for the Buck!

[Jimmer411]

That's one great result right there man !
For a dude coming from 3800+x2 you are managing the Phenom and taming it rather well .

Thank you Im pretty sure that this chip can atleast boot at 3.5ghz+ once I get this whole thing figured out. I still have not touched HTT yet tho I suppose that I should start doing that soon.



Im still tweaking it and trying to get it stable, tho Im having alot of issues. Im starting to wonder if the problem is more Vista64 rather than settings since even at 1.55vcore, 1.45v cpu nb and ram set at DDR400 and 2T with 2.2v I still get crashes in orthos all the way down to 3ghz.



Im going to install XP again and see if things are better. One thing that I do not like about this board is that while Vcore goes upto 1.8v, cpu-nb voltage caps out at 1.45 in bios.




Update: Im now running the ram in unganged mode and things are much much more stable. So far its beed running orthos blend for about 45 mins at 3.2ghz without crash where before it didnt last longer than 3 mins. I think Ima stick with vista a bit longer and see how things go. Once I pass a couple hours of orthos or get impatient Ill work my way back upto 3.4ghz+ and then Ill try to push the nb some more.

[merkk1]

Hi Anandtech did some testing with vista 32 bit and 64 bit with Phenom they did find the the vista-32 bit would over clock 1.5 ghz highter than the 64bit vista something you can try for your self if you want. But if you are running a all AMD cpu and video cards i stay with vista of some kind and not xp .

[HondaGuy]

Good Work Jimmer411

[TheBlueChanell]

Hi Anandtech did some testing with vista 32 bit and 64 bit with Phenom they did find the the vista-32 bit would over clock 1.5 ghz highter than the 64bit vista something you can try for your self if you want. But if you are running a all AMD cpu and video cards i stay with vista of some kind and not xp .

1.5ghz?

[merkk1]

Hi err .15 highter so if you got 3.15 in vista-32 you got 3.0 in vista-64 it was working out to about .15 diff. sorry for the bad post ealyer.