After Enabling XMP i get higher Temps because of higher voltages

[CyberBeast]

My RAM is 2133Mhz Stock , when i enable XMP in the BIOS ———-> it becomes 3000Mhz as advertised, But the CPU temp rise because Vcore is rising and IO and SA and Ofcourse the DRAM goes from 1.2v to ——-> 1.35v

CPU temp rised to 71c while Gaming, Before XMP it is 55-59c

Should i lower the Volts to get better Temps?

My rig: i7 7700k 4.2Ghz
Noctua Air Cooler
Gtx 1080 Gigabyte
16gb RAM 3000Mhz
Mobo: z270 sli plus

[𝔇ave]

the temp rise with xmp enabled is normal. the memory controller is in the cpu so the higher ram frequency is asking more of the cpu.

71c is perfectly acceptable for a 7700k.

what is your ambient temp and what noctua cooler in particular?

[Washell]

71 is fine, leave it. You can't have more speed without more heat (*).

* Physical hardware changes like die-shrinks exempted.

[CyberBeast]

Originally posted by Dave:

the temp rise with xmp enabled is normal. the memory controller is in the cpu so the higher ram frequency is asking more of the cpu.

71c is perfectly acceptable for a 7700k.

what is your ambient temp and what noctua cooler in particular?

nh-d15

but why are people saying its not safe for the cpu to be more than 70c on daily gaming use , do you have a link from intel to see what they think about 70 c on processors

[CyberBeast]

Originally posted by Washell:

71 is fine, leave it. You can't have more speed without more heat (*).

* Physical hardware changes like die-shrinks exempted.

Why people are saying dont go above 70c im having to different answers here

[𝔇ave]

Originally posted by CyberBeast:

Originally posted by Washell:

71 is fine, leave it. You can't have more speed without more heat (*).

* Physical hardware changes like die-shrinks exempted.

Why people are saying dont go above 70c im having to different answers here

who said that? your cpu could go up to 90c and still function normally.. 70c is fine. i doubt anyone on the forums would say otherwise.

there is absolutely no problem with 70c under gaming load.

if you are concerned about it then up your cpu fan speeds a bit. could probably shave off a few degrees without too much noise increase

[_I_]

70c was the limit on some am3/fm cpus and some intel 775 and earlier

[CyberBeast]

Originally posted by Dave:

Originally posted by CyberBeast:

Why people are saying dont go above 70c im having to different answers here

who said that? your cpu could go up to 90c and still function normally.. 70c is fine. i doubt anyone on the forums would say otherwise.

there is absolutely no problem with 70c under gaming load.

if you are concerned about it then up your cpu fan speeds a bit. could probably shave off a few degrees without too much noise increase

What About UnderVolting ? i did undervolt my Vcore from 1.15v which was at stock to ——> 1.13v and i got 5-10c lower temps, what about the other volts ?

[Washell]

Originally posted by CyberBeast:

Why people are saying dont go above 70c im having to different answers here

Because most people repeat what they heard someone say, regardless of the credibility of the source.

Electronics die from thermal cycling (expanding due to heat, shrinking due to cold). There are various layers in a chip that expand and shrink at different rates. Over time, this develops cracks and breaks connections. The main gap is from turned off to full load. Whether this gap is from ambient to 70 or ambient to 80 isn't going to have a significant difference on the life span. Those last few degrees don't do significant more harm than the first bump does.

Since the effective lifespan of a gaming machine is limited anyway, there's no need to worry about the lifespan of the hardware, even when run hot it'll last longer than it's able to keep up with modern games.

https://pdfs.semanticscholar.org/c354/7358d8fa3502fc09140598985d94afc4354a.pdf

[Snow]

Dave's right. Modern CPUs can go up to around 85° without even throttling.

[𝔇ave]

Originally posted by CyberBeast:

Originally posted by Dave:

who said that? your cpu could go up to 90c and still function normally.. 70c is fine. i doubt anyone on the forums would say otherwise.

there is absolutely no problem with 70c under gaming load.

if you are concerned about it then up your cpu fan speeds a bit. could probably shave off a few degrees without too much noise increase

What About UnderVolting ? i did undervolt my Vcore from 1.15v which was at stock to ——> 1.13v and i got 5-10c lower temps, what about the other volts ?

undervolting can decrease temps but more often than not it increases instability. to properly undervolt you need to do a lot of testing with different workloads to properly test for stability. imho to shave a few degrees off an already acceptable temperature is not worth it..

[CyberBeast]

Originally posted by Dave:

Originally posted by CyberBeast:

What About UnderVolting ? i did undervolt my Vcore from 1.15v which was at stock to ——> 1.13v and i got 5-10c lower temps, what about the other volts ?

undervolting can decrease temps but more often than not it increases instability. to properly undervolt you need to do a lot of testing with different workloads to properly test for stability. imho to shave a few degrees off an already acceptable temperature is not worth it..

thank you

[ericcui1]

In my experience, enable XMP usually makes the CPU temps higher by less than 5 degrees. A 10 degree jump is a bit too much.
Some motherboards enable multi-core enhancement by default once you enable XMP. Different motherboard manufacture may use different terminology, but what it does is slightly overclock your CPU and remove TDP limitation. This could be the main reason for your temperature jump. There should be an option to enable XMP only, take a closer look at bios.

[Aliquis Freedom & Ethnopluralism]

Well on Z370 using i7 8700K and XMP for 3466 MHz CL 16 memory one got bad IO and SA voltages. So I'd suggest setting things up manually rather than using XMP and not use a lot more than necessary.

Some boards in the beginning enabled multi-core enhancement as in all core boost increased to the single core boost multiplier when using XMP too which would increase core voltages and power draw. That you could prevent by not using MCE/performance enhancer/..

It could of course also be that with faster RAM your CPU is free to do more work and also as it can do that your graphics card may be asked to do more stuff too which by itself would increase power demands and heat output there too.

I wouldn't consider scaling voltages back towards what's stock/typical if they have been increased by enabling XMP for undervolting as it already was overvolted and would still remain so. Using XMP may exaggerate things as they want to make things just work.

[Bad 💀 Motha]

Originally posted by CyberBeast:

Originally posted by Washell:

71 is fine, leave it. You can't have more speed without more heat (*).

* Physical hardware changes like die-shrinks exempted.

Why people are saying dont go above 70c im having to different answers here

Cause they don't have a clue obviously. Below 90*C for that cpu is fine to run 24/7