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ASRock DeskMini GTX1080 (Intel Z370) SFFPC Review (Page 3)

By Steven Bassiri from Feb 4, 2018 @ 10:00 CST
TweakTown Rating: 93%Manufacturer: ASRock

Teardown of the DeskMini GTX1080

We have now started our teardown; the first step was to remove the MXM GPU (not that simple so please don't try it). The second was to remove the stock ASRock cooler, which is more than enough for the 65W i7-8700.

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I also removed the two VRM heat sinks and PCH heat sink from the motherboard and the GPU's heat sink. The GPU's memory is being cooled by two large dense heat pads. There is a lot of pressure between the VRM heat sinks and MOSFETs.

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Now we have the motherboard in its glory, all bare and such. The GPU is now also bare, and we can see what it has under the hood.

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The motherboard features an RGB LED header! You can light up the inside of the unit with a single strip. There is also a speaker header (not used), front panel header, and two USB 2.0 headers on the motherboard (only one used). The motherboard also features two fan headers, only one is used.

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The CPU VRM is now a 5+1 phase VRM and uses the same Fairchild Semiconductor FDPC5030 PowerTrench Power Clip dual N-channel MOSFETs we see on ASRock's high-end motherboards, each is rated for 25A. At the rear of the motherboard, we find a surprise; Intersil's brand new digital 7 phase PWM. Each phase is controlled by an Intersil ISL6596 driver; there is no phase doubling.

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The GPU's VRM is controlled by an ON Semiconductor NCP81274, which is common with newer NVIDIA cards and supports up to 8 phases. The five-phase GPU VRM uses 50A ON Semiconductor NCP5339 DrMOS units. The GPU's memory VRM uses ON Semiconductor dual N-channel MOSFETs in a two-phase configuration.

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Audio comes from an ALC233, which connects to the front panel headphone and microphone jacks. We also find that ASRock has used an ASRock i219v NIC for the Gbit LAN.

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A nuvoton NCT5567D is used as the SuperIO on the motherboard that does system management as well as fan control. A nuvoton N76E885AT is ASRock's RGB LED controller we find on their other motherboards, and the Texas Instruments TPS259261 eFuse is also there to ensure any polarity issue with the RGB header doesn't cause damage.

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