Originally Posted by Dromihetes
There were motherboards with digital VRM-s made.If you take a look at them you will notice no chocks.The purpose of the chocks is to remove noise from the power supply ,nothing more.They can be very well simulated into silicon if needed.So the assumption that a VRM can t be fully included on the CPU , just because they can t put the inductors (as you see them on most boards) in there is wrong.
Your understanding is violently flawed.
VRMs are basically DC-DC converters and in electronics it requires chopping up the DC into AC using a twin resonant transistor forward converter (Classic DC-DC design) and a diode won't be quite enough to flatten out the ripple so the choke is meant to be in tandem with a cap on board to filter noise (L-C Pi filter)
NOT to clean up PSU noise, if that was the case we wouldn't need VRMs if we were still using Socket 370/Slot A because they dont feature a single VRM on the boards but the choke is there to clean up the PSU noise if there was any
They look the same but they do different things
Back in the low power days (Before intel decided to be stupid and push for 95W+ TDP packages ala NetBurst) they were meant to clean up PSU noise but now it's meant to filter the ripple from the switching process involved in VRMs
Dont talk off your head that has no knowledge about analog electronics and attempt to make a silly point for everyone to believe. And digital VRMs as long as i live will not be a reality simply because it's DIGITAL.
Digital basically has only 2 states, Logic 1 or Logic 0
Voltage will forever be by itself analog, a digital voltage is a hard-on or hard-off voltage
Originally Posted by TranquilTempest
Digital PWM motherboards still use chokes(look for black cubes around the CPU socket), the only difference is they use a digital circuit rather than an analog one to control the power transistors. If you want more information, google "buck converter"
Wrong is just wrong! Any voltage is analog, digital is merely the way to control it (Thus how you can increase your core voltage)
I'm not going to post like the rest of the AMD overclockers on this thread but. They can potentially lock down voltage control now with the VRM controller integrated and not by Internation Rectifier or the like
What i'm simply saying is, there is capacity for them to lock down voltage control now and leave it only to the highest i7s (*cough*4770k*cough*)
Not that it might be true or possibly true which makes it then in the future if you wanted to play with OC'ing on the cheap you HAVE to go for a AMD
I'm a die-hard AMD fan and i love options. Lack of OC'ing options makes me steer clear of Intel especially when you can't do it on the cheap
How far can you OC a 3220? Quite simply if you don't see a problem now you probably might some day when you're back to the days when you're a budding student overclocker but have tiny budgets
Sure, nothing special like a custom water loop probably a big air heatsink cooling onlyEdited by DaveLT - 2/18/13 at 3:45am