Question about boost clocks and B350 boards

[Relentless81]

Hi,

In terms of 4.0GHZ boost clocks so on the 1800X for example, how does the B350 do in regards to maintaining those clock speeds?

Do the VRM's get really hot and is the board preventing the CPU from boosting in anyway at all?

I'm trying to keep the costs down on my build, I don't need half of the features of the X370 chipset so it would be good to know if a B350 doesn't have any issues helping the CPU achieve its rated boost clocks.

Assume no manual OC in this instance

Thanks

 

[Davedree]

Out the box the 1800x only boosts to 4ghz on 1 core or 4.1ghz xfr, all cores is 3.7ghz.
The voltage levels with the avfs on can vary from 1.25 to 1.47v chip dependent/load dependent. As to the B350 boards they are all capable of getting any r7 on all cores to 3.9ghz, some are better built than others I'd say the Gigabyte b350 is weakest in power regulation but still capable. No-one has tested the Asrock b350 and this has a greater phase count than all B350's so far so keep an eye out for that one when it finally shows.
The Asus Prime b350m-a doesn't have any heatsinks on the mosfets so I'd be wary of it.
Where the gains come from maybe per manufacturer will be in better bios support and memory speed support, but over time this will be sorted.

edit I haven't made it clear, Basically if you buy a r7 1800x and run it out the box, it will mostly run at 3.7ghz on all cores out the box and at this voltage level no B350 board will struggle to hold those clocks.

 

[Jamin280672]

I have a Gigabyte AB350m Gaming 3 motherboard with an R7 1700 currently with all cores at 3.9ghz, yes the VRMs get hot enough to cook an egg on, but only when stress testing, AIDA64 beta is pretty bang on with temps at the moment, what it says, my bios also states, right now it says my VRMs are at 42oC, when I'm running Prime, IBT, realbench etc they get upto about 115oC yup, very hot, ive put a very small fan over them regardless, total system power off at 125oC without the fan, I had to roll back from a 4ghz overclock, as 4ghz needed way more voltage than 3.9ghz, and just couldn't stop the VRMs from overheating., but like it says, I am heavily overclocking.

Also just pre ordered the MSI B350m Mortar Arctic, i'll see how that goes, maybe better, maybe worse, i'll keep the best of the 2, as Davedee said, id never go for the ASUS Prime B350m, no heatsink on the VRMs, cant believe they skimped like that, defo not worth taking the risk.

But if you're not planning on overclocking and banging massive amounts of voltage through the chip then you have nothing to worry about, boost clocks will be easily reached.

http://i63.tinypic.com/zyik2c.jpg

http://i66.tinypic.com/del72w.jpg

 

[Relentless81]

Great replies thank you.

I would be very interested in how the MSI board compares, if I have to spend more on a mobo to keep the heat out I will, VRM temps dont make for a silent PC and I am keen to keep my next build as quiet as possible

 

[steve258]

Ab350 gaming 3 here. Got an epic bad 1700 that does 3.9 at 1.47v. VRM got to 116c just exporting video in premiere cc.

Thinking about getting a better mobo when more become available but CPU is too weak to make it worthwhile.

If you just running stock then I don't think any motherboard out now cheap or not, will struggle to hold boost speed as that is the parameters set out by AMD.

 

[Scougar]

Has anyone been able to get memory to 3000 or 3200mhz with a 350 board?

 

[Jamin280672]

Has anyone been able to get memory to 3000 or 3200mhz with a 350 board?

I got 2933mhz on Gigabyte ab350m gaming 3, with G.skill Trident Z 3000mhz RGB 16gb and a 1700 at 3.9ghz, with there beta bios F3C, however I did experience some other big problems with the beta bios, and emailed Gigabyte about it, next thing I know, Gigabyte have pulled the beta bios from there site.

 

[muon]

All core boost + XFR is only 3.7ghz on the 1800X which B350 boards do with ease.

 

[sityeuropa]

What clock speeds are you guys running with B350 boards?

What are OK VRM temperatures to be running?

 

[prjwebb]

OC3D has a review of the MSI board. He got the 1800x to 4ghz and RAM to 3200mhz.