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Really appreciate your answer.

So on stock settings B550M pro should be OK, but any tuning would make it hot. The cpu cooler I will be using is be quiet Dark Rock Pro 4, where the middle fan is positioned little below the heatsink so it should provide some air for VRM heatsink but I suppose that it will not be enough. It looks like that the Elite is more robust and it will have more headroom in case of experimenting with OC. B550 Elite has the same VRM like B550 Pro AC, which according to the HUB video runs pretty cool even with 3900X OCed. But Pro AC has better heatsink, so it will be interesting how this different heatsink on Elite will handle heat output of the VRM.

Thank you, I hope there will be some more reviews
 

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Discussion Starter · #3,682 · (Edited)
When I mean a VRM FAN, I mean a literal FAN attached directly to the VRM heatsinks, not in close proximity like a CPU cooler, a separate fan on the VRM only there to cool the VRM, older AMD 50-60mm sized fan's are decent enough to cool if you place them right above.

I used such a solution on my older B350 with 4+3 4C06/4C10N [1x2] parts when OC:ing my Ryzen 1700 to ~4.0Ghz. You could reach 100C+ on VRM with ease if pushing Prime95 smallFFT. You want that FAN on there. Stock there isn't a issue. OC with 140W is a issue.
And a 3950X can pull close to 200watts if pushed to the limits, but maybe normal usage is 160-180 maximum for most people... You see it's not enough. It's not designed for that high wattage/current.

3950X has a 142watt limit in stock configuration. It's barely able to manage that in passive mode I would guess, it will get hot 10+3 4C06/4C10N [1x1].
 

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Thank you for your answer,

Yes I understand what you mean by additional Fan for VRM heatsink. I just said that this big CPU cooler I have can provide some airflow, but that airflow is insufficient. I think that underneath my CPU cooler there is no room for additional VRM Fan. I will wait for reviews and then decide.

How efficient was your setup with that Fan over VRM heatsink ? Was temperature drop significant ?
 

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Discussion Starter · #3,684 · (Edited)
Thank you for your answer,

Yes I understand what you mean by additional Fan for VRM heatsink. I just said that this big CPU cooler I have can provide some airflow, but that airflow is insufficient. I think that underneath my CPU cooler there is no room for additional VRM Fan. I will wait for reviews and then decide.

How efficient was your setup with that Fan over VRM heatsink ? Was temperature drop significant ?
I would not have been able to OC my Ryzen 1700 on that board at all without it. Maybe something 3.8-3.9Ghz would have worked with a low voltage. I just wanted 4.0Ghz and pushed my voltage to ridiculous on that board. It's not meant to push more than 100-120Watts generally.

The 10+3 4C06/4C10N [1x1] I would rate 110-140Watts in comparison. With regard to the bigger heatsinks. In general it would be easier to keep in check.
 

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Discussion Starter · #3,685 ·
I would like to compare the B550M Pro to the X570 GAMING X 12-phase[10+2]


This video should be good enough, the "better" X570 of same components, reached 86C with a 3900X for VRM.
 

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Discussion Starter · #3,688 ·
They can boot but you can't change anything in BIOS with the unsupported processors. At least on the ASRock board with that BIOS version.
This will be pretty much up to the board makers if they will allow it or not, Just "unsupported" but might work or not.

X570 as far as I know could boot with Ryzen 1000 series even if not explicitly supported. Depended on the AGESA version if they could do it.
 

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Discussion Starter · #3,689 ·

Some 320A boards, to bad he never takes a good picture of the parts, all a blur.
 

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https://www.asus.com.cn/Motherboards/TUF-GAMING-B450M-PRO-S/overview/
new b450m from asus

upgrades over b450m pro gaming
1. m.2 heatsink for the pcie2.0x4 m.2 slot only, but not the pcie3.0x4 directly from cpu.
2. more USB on back i/o
3. realtek 8125B 2.5g lan
4. 8 drmos power stages (H+L+D) instead of 4 power stages (8H+8L+4drivers only)
5. 2oz copper for better pcb cooling of mosfets
6. one more fan headers, total 4 headers (2 is suck, 3 is minimum, 4 is average)
7. bios flashback button
8. 10a solid pin (procool I with no metal shroud)
9. 32mb bios

==>probably the strongest vrm on b450
this heatsink is proved to be good enough even handling 300w on tuf z490 on greentechreview


"downgrade"
m.2 pcie3.0x2-->pcie2.0x4, however same pcie2.0x4 between chipset and cpus

and still no 5v argb 3pin header
 

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Strangely why are they still making b450? Excess of chips. Pcie4 validation is more expensive than thought?
because b450 chipset is still on going. amd hasn't stop providing b450 chipset yet.
gen4 requires lots of things like good pcb material (mid/low loss grade), gen4 slots of pcie and m.2, switches/redrivers/clock generator etc.
 

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Hello everyone,

Almost new to overclock, I'm basically upgrading from a i5 4570 to ryzen 5 3600 or probably waiting for ryzen 5 4600.
I'm in search of a good bang for buck MATX motherboard. I'm not too into manually overclocking I think I'll do just PBO.
What would be the best board between price, quality and performance for a ryzen 5 4600/3600.

PS. I've watched some reviews and one that catched my attention was from bulldzoid choosing the b550m aorus pro as best bang for buck.

Thanks for your help!
 

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Hello everyone,

Almost new to overclock, I'm basically upgrading from a i5 4570 to ryzen 5 3600 or probably waiting for ryzen 5 4600.
I'm in search of a good bang for buck MATX motherboard. I'm not too into manually overclocking I think I'll do just PBO.
What would be the best board between price, quality and performance for a ryzen 5 4600/3600.

PS. I've watched some reviews and one that catched my attention was from bulldzoid choosing the b550m aorus pro as best bang for buck.

Thanks for your help!

some b550m vrm temp comparision, tested by thermocouple, with watercooled 3700x 1.6v 140w, on open test bench, no airflow
https://www.bilibili.com/video/BV1mD4y1S7yy?from=search&seid=11004534119356521408

biostar gta 6*90a sps, mosfet 72c; heatsink 67c

Asus tuf 8*50a drmos, mosfet 47c; heatsink 46c

msi mortar 8*60a sps, mosfet 42c; heatsink 42c

asrock steel legend 8*50a, mosfet 62c; heatsink 57c

gigabyte aorus pro 10*(1H+1L); mosfet 63c; heatsink 64c



for 6c12t I think lots of b550m are capable to handle it.
not sure the prices in your country, so make your own choice.
 

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Interested in the ASrock B550 Steel legend, but it seems the B550 MAG Tomahawk is far better...?
 

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a review seriously complains about b550m aorus elite, despite it is on sales at ~$86usd from msrp $109usd on china.
https://www.bilibili.com/video/BV1E54y1S7yB
gigabyte b550m aorus elite
vcore vrm 5*1H+2L
however, there are 5 low side mosfets on the back pcb without any heatsink, same thing what gigabyte did on x570 gamingx.

other shortcomings:

1*usb 9pin internal header only, instead of 2 on b450m elite.

any gpu thicker than 2 slots will take some space over the bottom pcie x16 slot, namely this mobo support no other pcie device/card when >2 slots gpu is installed.
good thing is then supporting 22110 m.2 and that m.2 avoids hot exhaust air from gpu and no height limitation of m.2 heatsink.

the second m.2 slot is pcie3.0x2 only instead of x4, same as b450m elite.
but it should still be faster because of the pcie3.0x4 between b550 chipset and cpu, rather than pcie2.0x4 between b450 chipset and cpu.

3 fan headers only instead of 4 on b450m elite.

poor sata headers placement just like b450m gaming, worse than b450m elite.
have to use L shape sata header cable for headers under 2 slots gpu.
sadly there is only 1 L shape sata header cable included in the box, another included one is with both side vertical headers.

wired bios flashback button location on the pcb rather than on the i/o side.

vrm temp of the back low side mosfets,
118c and black screen eventually @ 3900x 1.4v 4.4ghz fpu ;
109c @ 3800x 1.4v 4.4ghz fpu 145w ;
105c for stock 3900x @ 3.95ghz only.
(room temp 25c, aio cooling, open test bench)
=>140w seems to be the max "safe" level before black screen/reboot/drop frequency on this mobo.



Interested in the ASrock B550 Steel legend, but it seems the B550 MAG Tomahawk is far better...?
what cpu are you going to use
 
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