Gigabyte Z77N-Wifi/H77N-Wifi = No voltage control? (Voltage hard mod info inside)
So yeah.. anyone care to help me with this..? we can likely find a way to mod for vcore..
From the pic I posted above, I do not see an IC for vcore.. it may be mounted on the back of the PCB...
Not all motherboards have overvolting/undervolting capabilities. I know for a fact that the P8H77-I does not have overvoltage or undervoltage, and now neither the H77N-WiFi. The best bet for you is to try the H77M-ITX and see if that works for you. Last chance would be just to use a Z77 mini-ITX motherboard.
you put it on top like a hat, i.e. canada aka USA's hat
I have sent you a PM
got it .. looks like power control IC located in your first pic.. just to lower left of large iTE chip
Got a copy of the datasheet this morning in my email from Intersil
**Now - the first pic is poor quality.. but i can see there is no surface mounted resistor on the backplane that connects to 'FB'. The orientation in the first photo, has pins 11-20 located along the right side of the chip as it sits in the picture [notice the small dot in corner to indicate alignment].
This means that you need to locate the 'dive-through' on the front side of the PCB.. where there will be a small surface mounted resistor. It should have continuity to the 'FB' pin on one side of the resistor... and continuity to ground on the other; if it does -> this is your mod point. Measure and post the resistance here in the thread please.. with a better pic or two if you can manage as well.
The formula for calculating your VR size for vcore mod is : [r* 20] = ~size for VR needed for mod, where stock resistance value = 'r'
Good luck.. I will look back for your post.
Also here are some better pics
This pic shows the two resistors that looks like it is connected to the IC
Can't tell which resistor is connected to the IC, there are couple above the caps
edited the pic.. you are definitely in the right spot on that last pic in your above post.
**FB pin marked in orange
Measure there for resistance to ground. Then probe those 2x resistors in your pic, just beneath the caps. One of them will have the same resistance value on one side.. and will be connected to ground on the other. We can use it as a mod point.. or the spot on the mobo I have marked is suitable mod point as well. Please measure/record/post resistance value.
**Do you have another CPU for this mobo to test? - It is picking vcore.. so resistance value should be related to your current vcore setting. We will call this our new "stock" value.
Derickwm, EK Employee: "The motherboard will be safer in the blender"
Sunreeper: Yeah dman is so Canadian that he oozes out maple syrup
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