The motherboard is quite beautiful when it's bare; it has a ton of parts that need to be analyzed.
Since the motherboard's PCI-E layout is very complex, I have included two block diagrams; one for a 28-lane CPU and the other for a 40-lane CPU.
ASUS's main VRM for the CPU core is based on a true 8-phase digital PWM (probably from International Rectifier) and eight International Rectifier IR3555, which are 60A integrated power stages. Each power stage has a driver, a high-side MOSFET, and a low-side MOSFET. These are extremely high-end parts, especially the 60A version of the PowIRstage. The inductors are ASUS's micro-fine alloy chokes, and there is a mix of solid 10K polymers, ceramic, and tantalum capacitors for the output filter.
There are two identical two-phase memory VRMs for all eight DIMMs. Each memory VRM gets a Digi+ ASP1250 PWM and two Texas Instruments CSD97374Q4M NexFETs, which can output 15A at 92% efficiency, 25A continuous, or 60A peak. The VPP rail comes from a GSTek all-in-one converter.
ASUS's SupremeFX Hi-Fi is a semi-external DAC. It is separated enough from the main system that it's protected from the noise, and it uses USB 2.0 for data and is powered independently through the internal PSU. It offers integration with the benefits of an external audio converter. I am told by a contact that it is based on the same hardware family as the STRIX RAID DLX, which costs over $200. The motherboard still has integrated audio so that you can use either. The SupremeFX HiFi DAC uses a mixture of Nichicon Gold series audio capacitors and WIMA audio grade film capacitors to produce excellent audio.
There is some very nice audio hardware in the SupremeFX HiFi box. For starters, I found an ESS Sabre ES9018K2M. The 2-channel 32-bit ESS SABRE DAC (digital to analog converter) sports 127dB DNR with -120dB THD+N. The output from this DAC goes through two sets of amplifiers; ASUS has moved towards multiple stages both onboard and in this DAC. First, each channel is filtered through an LM4562NA amplifier, and then both go through a Texas Instruments TI6120A2 for a final boost before the outputs. The two LM4562 sit in DIP sockets and can be swapped out for higher-end amplifiers if users want.
While the DAC is used convert digital signals to analog outputs is from ESS, the ADC (analog to digital converter) for the mic/line-in input is from Cirrus Logic. The CS5361 is rated at 114 dB, 192kHz/24-bit, and -105dB THD+N. It should provide for solid recording of the input. I also found multiple R45801 working in multiple stages, for what I believe is the input stage before the ADC. I also found multiple NEC relays used for de-pop (I assume each channel for the output and input gets one), and a Sonic Sense amplifier to detect headphone impedance and adjust the output accordingly. The USB audio interface is an unknown chip labeled 9C1525, probably from CMedia or another vendor of USB 2.0 audio processors.
The image above showcases the DC power converters for the amplifiers and other audio hardware on the DAC. There are two high-quality Texas Instruments TPS7A3301RGWR and a couple of converters for boost and step down voltage levels required for the different audio components.
PRICING: You can find the ASUS ROG Rampage V Edition 10 (Intel X99) Motherboard for sale below. The prices listed are valid at the time of writing, but can change at any time. Click the link below to see real-time pricing for the best deal:
United States: The ASUS ROG Rampage V Edition 10 (Intel X99) Motherboard retails for $599 at Amazon.
United Kingdom: The ASUS ROG Rampage V Edition 10 (Intel X99) Motherboard retails for £589 at Amazon UK.
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 Rampage V Edition 10 Overview]
- Page 3 [ASUS Rampage V Edition 10 Circuit Analysis]
- Page 4 [ASUS Rampage V Edition 10 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 [Thermal Imaging and Power Consumption]
- Page 11 [What's Hot, What's Not & Final Thoughts]
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