The VRM on this board consists of 12 phases. ASRock has focused on power density by utilizing lower profile 60A inductors and more integrated phases. The output filter is a mix of three different types of capacitors; 8x 560uF solid 12K Nichicon capacitors at 4480uF, 6x 330uF tantalum POSCAPs at 1980uF, and some ceramics. This is roughly 6460uF total and more than enough for strong performance.
The PWM controller is an Intersil ISL6379 Digitally Controlled Hybrid 6 phase PWM. There is no datasheet, but I would venture to guess that it is a 6+1 phase PWM. To get 12 phases, manufacturers must double the phase count from the PWM since there is no 12 phase PWM in production for motherboards. ASRock uses 6x Intersil ISL6611A which are phase doublers with integrated dual drivers. This saves a lot of space which is important considering the limited motherboard real-estate of the X99 platform.
ASRock is using 12x FDMS3668S which are dual N-Channel MOSFETs from Fairchild Semiconductor in the PowerTrench package. They have very good thermal and current ratings at 13A/18A (high/low side) at only 2.5W which is excellent.
Each memory VRM is like a two phase version of the CPU VRM, using the same ISL6379 PWM and the same dual N-Channel PowerTrench MOSFETs for a total of three ISL6379 and 16 dual MOSFETs on the board. An MPS MPQ8632 is used for the VPP power for each set of the 4 DIMMs.
It's pretty amazing that ASRock is using the ISL6379 three times on the board. It is overkill, but should provide very nice voltage control. The memory DIMM's main MOSFETs need drivers and four tiny ones are found on the back of the board. The drivers are Intersil ISL6208.
PRICING: You can find products similar to this one for sale below.
United States: Find other tech and computer products like this over at Amazon's website.
United Kingdom: Find other tech and computer products like this over at Amazon UK's website.
Canada: Find other tech and computer products like this over at Amazon Canada's website.
- Page 1 [Introduction, Specifications, and Pricing]
- Page 2 [Packaging and the X99 Extreme6/3.1]
- Page 3 [X99 Extreme6/3.1 Circuit Analysis]
- Page 4 [X99 Extreme6/3.1 Circuit Analysis Continued]
- Page 5 [BIOS and Software]
- Page 6 [Test System Setup]
- Page 7 [Overclocking]
- Page 8 [CPU, Memory, and System Benchmarks]
- Page 9 [System IO Benchmarks]
- Page 10 [Temperature and Power Consumption]
- Page 11 [Final Thoughts]
- We at TweakTown openly invite the companies who provide us with review samples / who are mentioned or discussed to express their opinion of our content. If any company representative wishes to respond, we will publish the response here.
Latest News Posts
- Death Stranding creator meets Robert De Niro at Tribeca 2019
- Mortal Kombat 11's Director says '$6440 story' is BULLSH*T
- Super Smash Bros. Ultimate overtakes Wii U console sales
- Super Smash Bros. Ultimate updated to 3.0.1, no Joker nerfs
- Super Mario Maker 2 pre-order comes with a sketching stylus
- ROG Zenith Extreme Alpha.....blocked mounting hole
- OWC 10Gbe Thunderbolt 3 Review
- did the old ivy bridge overclock issue on z68 boards ever get fixed?
- LED strip always on even after PC off?
- Netgear Orbi Pro Ceiling Review
- Carpe Diem! Imperator: Rome Available Now
- Garth Brooks Makes Mobile Game Debut in Words With Friends, Announces Final Pre-Order Window for The Legacy Collection
- Nexile releases new trailer for Jump King along with release date
- World War Z - The zombie apocalypse is frantic, frightening - and fun - in the World War Z Reaction Trailer!
- Focus Home Interactive Q4 2018 - 2019 Earnings!