Question Which motherboard should I go with

[Foyezes]

I'm from Bangladesh so the prices aren't exactly the same as in the US.
The prices are from startech.com.bd. The prices are in BDT.

This PC will be mainly used for game dev work such as Blender, Substance Designer/ Painter/ Sampler, Godot/ Unreal and DaVinci Resolve.

CPU - 7700X
GPU - ARC B580
COOLER - DeepCool LE520 240mm
RAM - x2 Corsair VENGEANCE 16GB DDR5 6000MHz CL30
SSD - Team MP33 PRO 512GB
PSU - Corsair CX Series CX650 650W
MOBO - I have a few options that are basically the same price (max $20 difference)

MSI PRO B650M-A WIFI
GIGABYTE B650M GAMING PLUS WIFI
MSI PRO B650-S WIFI
ASROCK B650M Pro RS WiFi

I got these from Hardware Unboxed's B650 Motherboard video. Which one is best?

 

[Misgar]

I prefer full size ATX boards because there's room for more PCIe slots and M.2 drives, so that's the MSI PRO 650-S, but the ASROCK B650M appears to take two M.2 drives and that's an alternative.

When choosing a mobo, think about what's most important to you. Do you need:-

Fast USB-C ports including headers for front panel USB-A and USB-C outlets
Multiple M.2 slots with integral heatsinks
Lots of SATA ports for old hard disks and SSDs

Quite often it's the type and spacing of the PCIe slots that clinches the deal for me, if I want to install 3 PCIe cards. You will probably have different priorities.

GPU - ARC B580

If I'm reading this review correctly, the B580 draws up to 190W from the PSU. Are you sure the Corsair CX650 is sufficient?

https://www.tomshardware.com/pc-com...eview-the-new-usd249-gpu-champion-has-arrived

The CX650 isn't a particularly bad "low end" PSU and I appreciate an RM750 series PSU might be double the price or unobtainable, but I have slight doubts about the CX650 in this system.

It's not the total power consumption of the GPU and CPU that concerns me, so much as peak (transient) demands from the GPU might overwhelm the CX, if the PSU has a small (in terms of uF) bulk electrolytic.

https://www.corsair.com/ww/en/p/psu...80-plus-bronze-atx-power-supply-cp-9020278-na

The 7700X has a nominal TDP rating of 105W, but could pull more power under certain circumstances. Factor in everything else and you might see a total power draw of 350 to 400W from the wall with CPU and GPU running stress tests simultanously. That leaves a nominal 250W headroom for transients. I'm not sure it's enough.

Anyone else care to comment?

 

[Foyezes]

I prefer full size ATX boards because there's room for more PCIe slots and M.2 drives, so that's the MSI PRO 650-S, but the ASROCK B650M appears to take two M.2 drives and that's an alternative.

When choosing a mobo, think about what's most important to you. Do you need:-

Fast USB-C ports including headers for front panel USB-A and USB-C outlets
Multiple M.2 slots with integral heatsinks
Lots of SATA ports for old hard disks and SSDs

Quite often it's the type and spacing of the PCIe slots that clinches the deal for me, if I want to install 3 PCIe cards. You will probably have different priorities.


If I'm reading this review correctly, the B580 draws up to 190W from the PSU. Are you sure the Corsair CX650 is sufficient?

https://www.tomshardware.com/pc-com...eview-the-new-usd249-gpu-champion-has-arrived

The CX650 isn't a particularly bad "low end" PSU and I appreciate an RM750 series PSU might be double the price or unobtainable, but I have slight doubts about the CX650 in this system.

It's not the total power consumption of the GPU and CPU that concerns me, so much as peak (transient) demands from the GPU might overwhelm the CX, if the PSU has a small (in terms of uF) bulk electrolytic.

https://www.corsair.com/ww/en/p/psu...80-plus-bronze-atx-power-supply-cp-9020278-na

The 7700X has a nominal TDP rating of 105W, but could pull more power under certain circumstances. Factor in everything else and you might see a total power draw of 350 to 400W from the wall with CPU and GPU running stress tests simultanously. That leaves a nominal 250W headroom for transients. I'm not sure it's enough.

Anyone else care to comment?

What if the CPU is R7 9700x & the PSU is DeepCool PK750D?

 

[stuff and nonesense]

Depending on settings the 9700x will draw less power than the 7700x. Make sure that you are able to update the bios on the motherboard if you choose a 9700x. Check the manual on the motherboard makers website.

PSU wise I have a rebuilt PC, a Linux box running a 3900x and Nvidia 3070 on a RM650W Corsair PSU and it’s solid. It’s been running Windows since the 2700x (with R9 390) was current with no problems. Your mileage may vary. I bought the PSU new at retail and haven’t knowingly abused it. Things can still break though and it’s reassuring to have a little headroom for spikes.

I too prefer the space afforded by ATX motherboards but that’s purely an opinion. It doesn’t mean that the hardware is better. I prefer MSI over Asrock though Asrock had to improve from the 990 extreme 3 which had an inadequate cpu vrm.

I’d be sorely tempted to increase the storage from 512G to 1TB, the price has fallen such that 512G makes little sense.