VRM temperature - Crosshair V Formula-Z

[TheLostOne]

Hey there folks!

I just started overclocking my AMD FX 9370, reached 4,615GHz at 1.404V and everything went fine, ran prime95 with max temp at 64 degrees.

What worries me is the temp sensor I installed measuring direct on the VRM heatsink read out 80 degrees. I do not know if this is way to high or just me being too cautious?

Do anyone know max VRM temp on the Asus Crosshair V Formula-Z?

Thanks in advance !

 

[tinytomlogan]

Sounds normal to me, basically your CPU pulls a LOT of power, it has caused a lot of mobo's to die with big clocks too. If the heatsink is at 80c then your fets will be a LOT hotter.

Might be worth thinking about watercooling tbh dude - cpu & mobo

 

[Tripp]

you shouldn't go above 62c on the 8 cores mate, thats supposed to be the max safe temp

 

[TheLostOne]

Thanks a lot for a fast reply Tom !

Ah right then, I never planned high overclocks on air cooling but yea the VRM worries me a bit. At stock 4,4GHz the VRM heatsink reaches 65 degrees

Well I better get started to save some money for watercooling then


Tripp:

But I've heard/read on overlock.net that Tj_max is 90 degrees for FX series, or is that just pure nonsens?

 

[Squidlorock]

I thought the cut off was about 70'c, but i could be wrong.

 

[Zoot]

Tripp:

But I've heard/read on overlock.net that Tj_max is 90 degrees for FX series, or is that just pure nonsens?

There's a lot of "well it could be this, but maybe it's that" around forums when it comes to max temperatures for AMD, since they don't really give a figure at all for their CPUs. The 62C comes from the old Phenom II's I think (unless I'm mistaken).

The way I look at it is, these chips are designed to throttle if they get too hot, by that I mean down-clock and lower the Vcore. So honestly, unless you're seeing throttling while running a torture test, you're fine from a temperature point of view.

 

[TheLostOne]

There's a lot of "well it could be this, but maybe it's that" around forums when it comes to max temperatures for AMD, since they don't really give a figure at all for their CPUs. The 62C comes from the old Phenom II's I think (unless I'm mistaken).

The way I look at it is, these chips are designed to throttle if they get too hot, by that I mean down-clock and lower the Vcore. So honestly, unless you're seeing throttling while running a torture test, you're fine from a temperature point of view.

Hehe I agree, there is a awful lot of different information regarding AMD CPU temperatures ! Well I haven't seen it throttle yet but as said the VRM temperature maybe be my biggest problem

But thanks for the replies!

 

[iBeInspire]

CPU max temps for 8 cores are 62, but VRMs vary by mobo...

 

[TheLostOne]

CPU max temps for 8 cores are 62, but VRMs vary by mobo...

Those 62 degrees, is that from AMD themselves or? If max temp is 62 why is CPU monitoring software reporting Tj_Max 90 degrees?

Sorry I don't know what to belive anymore

 

[CalVic]

Remember that the CPU Temperature reading is that of the socket, there's a recommended soft limit of 70c all depending on Motherboard quality.

Download HWMonitor and pay attention to the "Package" Temperature, this is the actual core temp that's advised to keep below 62c

 

[TheLostOne]

Thanks !

Will not be overclocking to much until I find some better options for the VRM

 

[barnsley]

I'd personally try and get some more airflow directed towards the VRM.

 

[Tripp]

could always grab a h100i then reverse the rear exhaust fan so its an intake

 

[TheLostOne]

I'd personally try and get some more airflow directed towards the VRM.

I have 2 Corsair AF high performance as intake on the top of the Corsair 600T (did make a custom filter to prevent dust) and 1 as exhaust (rear)

Do you suggest mounting small, like 40mm fans, directly attached to the VRM heatsinks?


Thanks you all for helping really a pleasure

 

[barnsley]

I have 2 Corsair AF high performance as intake on the top of the Corsair 600T (did make a custom filter to prevent dust) and 1 as exhaust (rear)

Do you suggest mounting small, like 40mm fans, directly attached to the VRM heatsinks?


Thanks you all for helping really a pleasure

unless you really don't mind noise I'd try the h100i option although beware, the fans will be spinning quite fast due to the 9370's heat.

 

[TheLostOne]

I will keep that in mind, thank you , but I might as well go for custom watercooling when I have the money instead using money on h100i? And cool the cpu + VRM if water blocks still exist within Denmark for this motherboard


Minor update -> Currently overclocked to 4,816GHz at 1.404V, CPU at 59 degrees and the VRM heatsink is 69.2 degrees, every fan in system at full throttle, running prime95