Unlocking Phenom II Callisto x2 to Deneb x4

RG_AMD

New Member
Callisto to Deneb in ECS A790GXM-AD3

How about for ECS A790GXM-AD3 motherboard?

I have a phenom II X2 550 BE on a ECS 790GXM-AD3 board. My problem is that when i set the cpu multiplier to x15.5 to make it 3.1GHz in the bios menu, then after booting and looking it a CPU-Z, it is 3.1Ghz, but after a while it goes back to 800 MHz (x4 multiplier default), Ive already updated my bios to 790TA20, what seems to be the problem? it just keeps coming back to the default multiplier.
 
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StrangleHold

Moderator
Staff member
How about for ECS A790GXM-AD3 motherboard?

Paired with AMD SB750 south bridge controller supporting the function of ACC (Advanced Clock Calibration), ECS A790GXM-AD3 allows users to push the overall system performance to another higher scale. It also means that you you are trying to 'unlock' a triple core AMD Phenom II processor and make it a quad core this board should be able to give it a shot.
http://www.legitreviews.com/article/938/1/
 

StrangleHold

Moderator
Staff member
I have a phenom II X2 550 BE on a ECS 790GXM-AD3 board. My problem is that when i set the cpu multiplier to x15.5 to make it 3.1GHz in the bios menu, then after booting and looking it a CPU-Z, it is 3.1Ghz, but after a while it goes back to 800 MHz (x4 multiplier default), Ive already updated my bios to 790TA20, what seems to be the problem? it just keeps coming back to the default multiplier.

You have Cool & Quiet enabled.
 

87dtna

Active Member
Yeah just put some load on the CPU and it automatically will just back to stock speeds. It's just an energy saver.
 

RG_AMD

New Member
You want a Crossfire or a single slot board, or do you need onboad video?

let's do it this way:

option 1: single slot board

option 2: single slot board w/ onboard video

option 3 crossfire

option 4: crossfire w/ onboard video.

w/ the budget in consideration.

thanks a lot. :)
 
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87dtna

Active Member
Oh I thought he wanted to re-use his DDR2 memory, or am I getting two different threads mixed up...

If he's wanting full AM3 than I highly recommend the board I currently have for single slot-

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128397


And then here's the board I'm going to get, and I'm looking to crossfire-

http://www.newegg.com/Product/Product.aspx?Item=N82E16813131402


Make sure you have a case that can support full ATX motherboards though if you are wanting a dual 16x slot board.

Here's an open box deal right now on the 785gmt mobo-

http://www.newegg.com/Product/Product.aspx?Item=N82E16813128397R

Cheap!
 
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RG_AMD

New Member
Ecs a790gxm-ad3

Hope you can help me out guys.

I have an ECS A790GXM-AD3 board. I want to set my cpu multiplier to x15.5 to make it 3.1GHZ, i've turn off the C&Q in the bios, save it and boot it, and all works just fine. The problem is that the next day when booting it again, my board don't boot up, even though my system is turned on, it just give me a blank screen, so i have to clear the cmos again, and i will setup again the bios. I experience this many times. Does this mean that i just have to enable the C&Q feature and leave it that way? and also does this mean that the board cannot do overclocking?

Thanks guys for your help. :)
 
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