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post #3651 of 3658 (permalink) Old 05-23-2020, 03:46 AM
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Quote: Originally Posted by Nighthog View Post
Only the official product page images. But you only get a general look on how the power stages look like, not part numbers. Asus is kinda vague in their descriptions.

STRIX B550-F
https://dlcdnimgs.asus.com/websites/...nce/show-5.png

STRIX B550-E
https://dlcdnimgs.asus.com/websites/...nce/show-5.png
Those are pretty good pictures. I don't think not mentioning Dr MOS means anything, it's an Intel spec. Any power stage is pretty much Dr MOS. Most likely SiC631/NCP302155 or a different current spec in the same series on -F. The -E does indeed seem to have slightly larger packages, you could be right about IR3555 there. Both are probably teamed as all other Asus solutions.
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post #3652 of 3658 (permalink) Old 05-23-2020, 04:22 AM
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msi this time follows the trick used by asus--covering up the chokes with pads.
dont know what makes msi changed, in the past they said ithey wanted customers to be able to count how many chokes there visually.
asus does push so hard on x570 and b450 using ir image to show vrm temps. cant wait to see their b550 figthing guide.


and msi claims their 4pin aio pump header could controll the speed of aio pump..
as far as i know at least in the past this kind of header with larger current capabililty still cannot control the aio pump speed like asetek aio.
lots of aio with 3/4 pin header to plug to mobo 4pin fan headers are just for pump speed reading...



Quote: Originally Posted by elmor View Post
Those are pretty good pictures. I don't think not mentioning Dr MOS means anything, it's an Intel spec. Any power stage is pretty much Dr MOS. Most likely SiC631/NCP302155 or a different current spec in the same series on -F. The -E does indeed seem to have slightly larger packages, you could be right about IR3555 there. Both are probably teamed as all other Asus solutions.
hello elmor, do you know why gigabyte claims sic620a on z490 ultra and aorus pro ax to be 55a drmos on official sites instead of 60a rated in the spec sheet?
their latest vrm cheatsheet of b550 even states sic651 to be 55a rated.

Last edited by asdkj1740; 05-23-2020 at 04:30 AM.
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post #3653 of 3658 (permalink) Old 05-23-2020, 05:06 AM
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Quote: Originally Posted by asdkj1740 View Post
hello elmor, do you know why gigabyte claims sic620a on z490 ultra and aorus pro ax to be 55a drmos on official sites instead of 60a rated in the spec sheet?
their latest vrm cheatsheet of b550 even states sic651 to be 55a rated.

My best guess would be that there has been some error in the communication from engineering to marketing. Happens very frequently at all vendors.
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post #3654 of 3658 (permalink) Old 05-27-2020, 12:12 PM - Thread Starter
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MSI reveal of B550 motherboards:


Starts around 6min mark.

@ 2hours pricing and features per board:

MPG B550 GAMING CARBON WIFI 219$/249€ 12+2 IR 60A 6-Layer
MPG B550 GAMING EDGE WIFI 189$/209€ 10+2 Intersil 60A 6-Layer
MPG B550I GAMING EDGE WIFI 199$/219€ 6+2 Vishay Dr.MOS 60A 8-Layer
MPG B550 GAMING PLUS 149$/169€
MAG B550 TOMAHAWK 179$/199€ 10+2 Intersil 60A 6-Layer
MAG B550M MORTAR WIFI 169$/189€ 8+2 Intersil 60A 4-Layer
MAG B550M MORTAR 159$/179€ 8+2 Intersil 60A 4-Layer
MAG B550M BAZOOKA 139$/155€
B550-A PRO 139$/155€ 10+2 [1x1+2x2] Mosfets 4-Layer
B550M PRO-VDH WIFI 129$/139€
B550M PRO-DASH 119$/129€

MPG X570 TOMAHAWK WIFI 209$/229€ 12+2 Intersil 60A 6-Layer

All have 2oz copper pcb for gen4 PCIE requirements.
BIOS flash buttons on all.

Gigabyte X570 AORUS XTREME, Ryzen 7 3800X PBO boost, 3800/1900 MEM/FCLK, 13.23.17.30.66.tRFC 600 1T 1.700V
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V (Micron Rev.E 16nm [D9VPP])

Last edited by Nighthog; 05-27-2020 at 03:06 PM.
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post #3655 of 3658 (permalink) Old 05-27-2020, 04:10 PM
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As an X570 Aorus Xtreme owner, I can't help but chuckle while shaking my head. That B550 Aorus Master will be a very nice board for the price.

Guess I'll have to hold on to this board until it's not worth anything anymore. Especially because now whatever kind of resale value it had is gone.

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post #3656 of 3658 (permalink) Old 05-28-2020, 12:30 AM - Thread Starter
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Gigabyte has announced prices!

Cheatsheet from GBT_Brian

B550 AORUS Master 279.00$ 14+2 TDA21472 70A 6-Layers
B550 AORUS PRO AC 189.00$ 12+2 SiC651 55A 6-Layers
B550 AORUS PRO 179.00$ 12+2 SiC651 55A 6-Layers
B550 AORUS ELITE 159.00$ 12+2 SiC651 55A 4-Layers
B550 GAMING X 139.00$ 10+3 PPAk [1x1] 4-Layers
B550M AORUS PRO 129.00$
B550M AORUS ELITE 109.00$
B550M GAMING 99.00$
B550M DS3H 94.00$
B550I AORUS PRO AX 179.00$ 6+2 Intersil Dr.MOS 90A 8-Layer
B550 VISION D 259.99$ 12+2 SiC651 55A 6-Layer

Gigabyte X570 AORUS XTREME, Ryzen 7 3800X PBO boost, 3800/1900 MEM/FCLK, 13.23.17.30.66.tRFC 600 1T 1.700V
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V (Micron Rev.E 16nm [D9VPP])
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post #3657 of 3658 (permalink) Old 05-28-2020, 03:15 AM
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post #3658 of 3658 (permalink) Old 05-28-2020, 06:35 AM - Thread Starter
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Quote: Originally Posted by asdkj1740 View Post
Well not like it's unusual they get the part numbers and specifications for them wrong. Question becomes is the part number wrong or the Amperage rating.
They should be around the corner soon enough for release.

Gigabyte X570 AORUS XTREME, Ryzen 7 3800X PBO boost, 3800/1900 MEM/FCLK, 13.23.17.30.66.tRFC 600 1T 1.700V
4x8Gb Kingston HX434C19FB2K2/16 3466C19 1.2V (Micron Rev.E 16nm [D9VPP])
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