@t00tkia
welcome to to LYN forums, please read the stickys and adhere to board rules at all times. And no, smoking pot while spamming in threads other then kopitiam will not be tolerated LoL. And have fun.


only shade the RFB smd capacitor, and then use a cellotape to make sure the graphite does not get blown off.

I would assume you do know the risks involved for eliminating vdroop right? if not please read below.


@Nocrimes

vdroop modding is to eliminate the need to set a higher voltage in bios. in normally benefits ocers.




Introduction

In engineering, a minimum tolerance to faults and defects has to be put into consideration for any design or product to compensate for faults or manufacturing uncertainties and design margins create a situation in which products never meet validation criteria. If the tolerance margin is set to far apart, the device or product might suffer from performance penalties or reliability issues.




Intel Specification for vdroop





These represents the droop as according to intel's specifications. The droop is to compensate for the capacitor and mosfets feeding the vcc (cpu voltage) an allowable tolerance to faults and for the capacitor charge up and discharge time.






Bottemline:
vdroop is to allow the power regulators and mosfets of the motherboard feeding the cpu power enough tolerance so that it does not zaps your cpu with voltage spikes and to prolong the life of the mosfets.

Capacitors and mosfets as well as chokes, requires time to charge up the current needed by the cpu. and that is fine for idle to load transitions.

But during load to idle transitions, the current (A) required by the cpu is suddenly stopped, but before the capacitors are allowed to discharge through heat, the voltage supplied is spiked to the cpu, as well as damaging the mosfets due to the feedback.

how much is the spike to the cpu when there is 0% droop?
that depends on the power phase amount supplying the cpu power as well as the load on the cpu during the load to idle transitions.

So if you love your cpu, dont give them 0 vdroop under load, because they hate little spikes of 1.7v to the core






References:
Intel Corp. Doc. Number: 313214-002 (November 2006)
http://download.intel.com/design/processor...ts/31321402.pdf

STMicroelectronics L6713A 2/3 Phase controller with embedded drivers for Intel VR10, VR11
and AMD 6 bit CPUs (07-Nov-2006) Asus P5k SE controller
http://www.st.com/stonline/products/litera...2144/l6713a.pdf

I will edit this when i feel more diligent to type

This post has been edited by bryanyeo87: Jan 19 2008, 01:31 AM

Ocing does in fact reduce the lifespan of the components involved, BUT, it does so less if it is done properly, because processors and chips have a good lifespan of up to 12 years(or more lol) but im pretty sure you wouldnt wanna keep the pc at that time, so you trade off 3 or 4 years for a higher performing pc. Last time during the intel prescott era, cooling would cost a bomb mainly because those little chips are nuclear generators.

Consider ocing is like tuning a honda civic to produce 400bhp, its like modifying the engine, and drivetrain to give better performance at the trade off of engine lifespan.

yea that is correct, it reduces the vdroop, if u want less vdroop, shade even more, but i would strongly suggest not to go more then that if you value both the processor and board's mosfets lifespan. and what did you use to measure the current cpu voltage?


btw, what is the voltage set at bios, idle and load. before and after the mod?

you didnt shade it correctly, grab a multimeter and probe the resistance and reduce as per the guide

and using software to check voltage is about as accurate as driving blindfolded