you also need a TB controller that support daisty chain as not all of them do!
Anyways yes this board has the best TB controlled released to date. (DSL3510) other boards like the M5E are using the single port one, as is MSI. GB is using the dual port, which is no doubt more expensive.
the zotac 24 phase is using a uPI analog PWM with a new doubling scheme from uPI, i didn't see the uP6275. Now this IC can act in 2 ways, first it can just quadrouple the phases, and have them keep on all at the same time, or it can turn on 1 phase each time it is pinged. For it to turn on 1 phase each time that takes advanced circuitry, IR has a IR3599, which will turn on 1 phase at a time when pinged, however I am not sure if uPI has that kind of ability. Intersil has another way of doubling it using 3 doublers per 4 phases, and uPI also has another way where they use 2 main chips that can each output 10 phases when 3-5 are imputed(that is the worst IC) it is like a cheap analog hub they used to use in the past days, like used on an ASUS P5K deluxe to double 4 phases to 8. That is very interesting, prob uPI has a new better doubling scheme. I can do a whole piece of doubling schemes lol.
BTW what the ****! http://www.expreview.com/topic/img/review/Zotac_Z77_Extreme/Zotac_Z77_13_b.jpg
The board has 3 sets of voltage read points, which includes ONLY, CPU, DRAm and PCh voltage!!! What happened to VTT and VCCSA(IMC) voltage? What about DDR VTT? Who the heck needs PCh voltage?
Also look at the PCI-E 16x slot arrangement, they muyst be retarded, and they have no input from any OCer it seems lol.
They are using 35A DrMOS, basically have 25-30A max output, and 25A real output, DrMOS are always good, but very widely used. They have very high efficiency, but usually have limited top end output because of costs. That is why the IR3550 is so special.
Get this: No one uses 50A DrMOS, however they are now available, they only have 90% efficiency at 20A, lol, IUR3550 has 90% at 50A for comparision. BTW I have a piece coming up about MOSFETs and IR3550 and how to calculoate output of MOSFETs based upon their graphs and datasheets. it is very interesting. I compare IR3550 against 50A DrMOS and 35A DrMOS, as well as 7030AL which is what ASUS uses on their high-end boards, as well as 4921N which is what GB uses on their UD3H.
The best part of that Zotac is its proadlizer capacitor, those are extremely expensive nowadays, and can only be bought in small quantities, that is why Zotac can get away with it, and why asus and gigabyte are stuck with only using them on ultra high-end GPUs. In zotac's case however BIOS will be its biggest issue i would think.
Also UP5 SATA port count, it is less because Thunderbolt takes up 4x PCi-E lanes from the PCH, and the PCh only has 8, that means that each thing, NIC uses 1x lane, each of those 1x PCi-E ports use a lane, as do any USb 3.0 controller or SATA controller like used on the UD5H. Thunderbolt is extremely resources heavy, its ridiculous.Edited by Sin0822 - 8/9/12 at 2:47pm