Help locating VRMs on Asus Prime B360M-A Mobo

[opelly]

Hello.

 

I have been having some troubles with my VRMs overheating on my Asus Prime B360M-A motherboard for a while, so I purchased some aftermarket heatsinks with pre applied thermal adhesive to stick on.

 

The only problem is I don't know where exactly to stick them, and have not been able to find any documentation on it for my particular model of motherboard. I have attached an image of the motherboard PCB and if somebody could point me in the right direction I would be appreciative. 

[Mathieu9836]

[opelly]

1 minute ago, Mathieu9836 said:

Thank you for the reply. Is it the MOSFETs or the Chokes that I should be cooling? or perhaps both? Thank you!

[Mathieu9836]

The layout of the Mosfets on your particular board look like you will have a hard time trying to put a heatsink on them, i suggest you to have the best airflow you can in your case OR replace your motherboard.

What is telling you that your VRMs are overheating?

[opelly]

Just now, Mathieu9836 said:

The layout of the Mosfets on your particular board look like you will have a hard time trying to put a heatsink on them, i suggest you to have the best airflow you can in your case OR replace your motherboard.

What is telling you that your VRMs are overheating?

When monitoring my CPU in Intel Extreme Tuning Utility I can see that VR thermal throttling occurs when the CPU is under load. 

[Derrk]

2 minutes ago, opelly said:

Thank you for the reply. Is it the MOSFETs or the Chokes that I should be cooling? or perhaps both? Thank you!

you want to cool the mosfets, however this motherboard is weird. you could probably get heatsinks on some of the rows of 3, but id suggest a rear intake or someway to get active cooling on them

[opelly]

4 minutes ago, Derrk said:

you want to cool the mosfets, however this motherboard is weird. you could probably get heatsinks on some of the rows of 3, but id suggest a rear intake or someway to get active cooling on them

That was my last attempt at cooling them and it only slightly helped the problem. Here is my fan setup. The two grey fans at the top are intake. The CPU radiator fan is obviously an exhaust fan and so is the rear black fan. Would moving these fans around help possibly?

[Derrk]

4 minutes ago, opelly said:

That was my last attempt at cooling them and it only slightly helped the problem. Here is my fan setup. The two grey fans at the top are intake. The CPU radiator fan is obviously an exhaust fan and so is the rear black fan. Would moving these fans around help possibly?

I'd setup the top fans as exhaust, since hot air rises naturally. I'd set the rest as intake but only to have positive pressure in the case.

it probably wouldn't make a big difference in cooling the vrms though

[opelly]

12 minutes ago, Derrk said:

I'd setup the top fans as exhaust, since hot air rises naturally. I'd set the rest as intake but only to have positive pressure in the case.

it probably wouldn't make a big difference in cooling the vrms though

ok thank you. I just did some tests with the fans and nothing seems to help. Even having fans pointed directly at the VRMs they still throttle. 

 

Do you have any recommendations for a motherboard that has beefy VRM heatsinks that is micro ATX form factor?

[Derrk]

15 minutes ago, opelly said:

ok thank you. I just did some tests with the fans and nothing seems to help. Even having fans pointed directly at the VRMs they still throttle. 

 

Do you have any recommendations for a motherboard that has beefy VRM heatsinks that is micro ATX form factor?

any board with vrm heatsinks will be an improvement.

but from a quick search on newegg, MSI's B360M mortar  has the best heatsinks for under $100. It doesn't have a huge chipset heatsink, but it should be fine if your current chipset temps are okay

 

edit: its also on amazon prime for $89.99

[Mathieu9836]

What CPU are u using on that board

Other then putting a fan right over the VRMs and holding it there with zip ties there is no real permanent fix for overheating VRM.

If the VRMs are overheating the CPU is way too big for that board OR you have a bad VRM control like switching frequency way too high or something like that, but just seeing there is no heatsink at all, it's probably just a really cheap board.

[opelly]

4 hours ago, Mathieu9836 said:

What CPU are u using on that board

Other then putting a fan right over the VRMs and holding it there with zip ties there is no real permanent fix for overheating VRM.

If the VRMs are overheating the CPU is way too big for that board OR you have a bad VRM control like switching frequency way too high or something like that, but just seeing there is no heatsink at all, it's probably just a really cheap board.

Yes. That is what I am learning. It's a 9900k and its on a cheap motherboard, very poor decision.  

[Mathieu9836]

9 minutes ago, opelly said:

Yes. That is what I am learning. It's a 9900k and its on a cheap motherboard, very poor decision.  

.......... A 9900K on a 4 phases with2 high and 1 low side mosfet on each phases.... i'm surprised it didn't blew up already. It's like putting a 1000hp LS9 in a Civic and holding the engine in place with 2 bolts.

[opelly]

5 minutes ago, Mathieu9836 said:

.......... A 9900K on a 4 phases with2 high and 1 low side mosfet on each phases.... i'm surprised it didn't blew up already. It's like putting a 1000hp LS9 in a Civic and holding the engine in place with 2 bolts.

Yeah. I see the error in my ways now. I got it about a yeah ago, and in the mean time I have learned a lot and become more of an enthusiast. It is clear to me that I need to simply get a new motherboard. 

 

https://amzn.to/2rHKG2E

 

How does this one look ^^. 

[Vejnemojnen]

35 minutes ago, opelly said:

Yeah. I see the error in my ways now. I got it about a yeah ago, and in the mean time I have learned a lot and become more of an enthusiast. It is clear to me that I need to simply get a new motherboard. 

 

https://amzn.to/2rHKG2E

 

How does this one look ^^. 

Decentish. Not as good as the ATX counterparts (Z390 gaming X), but still good enough  if you're to undervolt CPU core. 

[opelly]

32 minutes ago, Vejnemojnen said:

Decentish. Not as good as the ATX counterparts (Z390 gaming X), but still good enough  if you're to undervolt CPU core. 

Will I be able to hit the boost clock during sustained all-core loads? (4.7ghz ish) I have the NZXT h400 case, so I am limited to micro atx or mini itx. 

[Mathieu9836]

I suggest you to get a real good board for that CPU.