#326 - Q&A: What's the difference between CPU Temperature & CPU Core Temperature?

[megagabobe1]

should i look out for cpu temps or core temps when overclocking?

[red16mage]

Rodney, you are pretty much a badass. You are very informative, and, unlike some other people, you don't treat the un-tech savvy people like idiots.

[nazi8per]

I've been experiencing some weird temperature fluctuations in my system lately, and because of it I'm going to change from air cooling to oil.

I'm using HWmonitor now, and the readings are a little odd... CPU temperature shows as room temp plus a little more (23ºC), the CORES however show a huge difference, ranging from 40ºC for one core, while some of the cores are at 45ºC.

My case has good airflow, yet the temp readings are all over the place. Northbridge is at 75ºC during load btw.

Why?

[loidperish]

Canadians is good :)

[kevinsmammaxd]

why are you so red?

[MrPcwiz1234]

my cpu temp sits at like 20 25 dgs idle

under load its 30 35 dgs

i got the h50 water cooler



[DBZisthebestanimever]

my CPU temp is always higher than the cores.

[PirateKing1256]

My CPU temp is 35degree my My CPU core temp is 45degree. That's normal , right?

[Velocity0428]

Strange.. My CPU Temp is almost 10C higher than my core temps. Is this something that I should be worried about?

[GeneralKazim]

this is a good person

[iddqd768]

Rodney Why is your face so Red? I think you need to get that checked out.

[DeltaPhi79]

@iddqd768 ........... I hope you're kidding but.... 1: Lighting. 2: Um... Could be hot in his house? The video was done in the winter.

[iddqd768]

@DeltaPhi79 ..ok Let's just say yeah need to turn down the heat in the house, ..and maybe get You'r Blood Pressure checked out Cause that can cause a tomato face Look lol just saying

[blowupuate13]

@iddqd768 maybe he just took a really hot shower or someone mad him really mad or he is like me and sitting in front of a computer for 6 hours makes your face red

[electrobussterr]

My phenom goes to around 64c core 65 is max or it will fucking explode. It happens each time when I try to convert videos to 1080p.

AMD Stock cooler sucks.

[MrDucktaper]

@electrobussterr What cooler do you have?

[SNSKreationz]

@electrobussterr i got an ocz vendetta 2 and arctic silver matrix on a phenom quad and it idles at 35 and most i see it running at is 48. thats just a $40 investment

stock coolers, as far as i can remember, isnt bad. probably because of the antec 900 case. make sure u have free airflow

[marrius1993]

On my pc Realtemps shows abou 47 C an in bios is 20-25 C. If real temp shows 60 C should i worry ?

[LimburgerVinny]

mine phenom2 965 = 45idle 50stressed

if it comes to 80 than worry, worry a lot :P

100 = dead.

i use PC Wizard 2010 for my temps, works great, and is free.

[spookymcfuzzy]

Keep clicking at 1:00 it's funny!

[pk3d2sleep]

@spookymcfuzzy LOL!!

[matwocents]

@spookymcfuzzy hahaha!!

[blacklabel67k]

ahh i was wondering what the difference was... learning all the time i guess.

[KuruGDI]

LOL

What that video with Captions turned on (the little "CC" in the bottom right of the player)

The first sentence is: "hello toronto spnsored a man about town this next question is what's the difference between CDU temperature and CDU core temperature"

[ambush136]

Very good question!

[spydyn67]

This was a good question, thanks to who asked it and to Rodney!

[soma1509]

Well, there's also the dilemma with Socket 775 CPU's as far as what's the TJMax of a certain processor. Intel and their website are of little to no help to provide accurate information about this, so basically it's up to us enthusiasts and overclockers to find the processor's actual TJMax (max Core temp. in which the processors throttles back or shuts down).

With the new 1366.1156 sockets though, that's no longer a problem.

[xXSCARFACE1983Xx]

Hi Rodeny, I have to ask something: My Everest says about 50 ° C for CPU temperature and 26 ° C Core Temperature. I'm using an AMD 7750+ OC 3GHz on 1.325 Volt with an Arctic Coling Alpine 64. Now are these temps normal?

[error262]

same here...

[yoplaitmajor]

I smile every time I watch this guy. He is just so .....Happy. Lol.

Go Canada!

[Disinf3ctant]

@yoplaitmajor

Course he's happy =P

He gets thousands of dollars worth of hardware for free haha.

I do love Rodney though.

[Velocity0428]

@yoplaitmajor -True. Happy and knowing what he's saying. He's like the late great Steve irvin.

[GeneralSchultz]

he is succesful and cool and has a big pc and a wife and kids hesw smart he MUST be HAppy! canada is underrated against the US.canada is cool.

[flaco198111]

my core temp is about 10°C hotter then the cpu temp,is that normal? core i7 975.

[fppgames]

my core temp is also 10°C hotter then the cpu temp, so maybe it's normal. I have Core 2 duo E6750

[GOOB3000]

Loving the new logo Rodney! Looks much more professional ;)

[fppgames]

hmmm are You shure? cpu temp. is taken from motherboard (in the middle of socket under CPU). Also core temp. sensors CAN'T be placed on die core. They can be near it but... hmm 45nm sensor? how? On die are only transistors and nothing else. Hope somebody correct me if i'm wrong

[TheMRamstaff]

yes under the die so he is right

[fppgames]

just listen one's again. He says "on the cpu die" 0:35 sooo. Maybe i don't undesrtand english correctly, but as far as i know Rodney is wrong in this video. I think cpu temp. is taken from mother board, not from i.h.s. But again i'm not specialist.

[DsexLive]

think he means the shit that goes on the top of your cpu

[yan2yan2]

ahhh now i know :)

[TraNWhiZ]

Great, thanks.

[sgtnimitz]

I love his videos :D

[639426]

see thats great information, keep up the good work

[doradus1990]

good video, always wondered what the difference was :)

[Ferrari0321]

Excellent video. This was something I always wondered about when I was still learning... even now, this video helps confirm what I eventually found out. Very nice Rodney, thanks!

J.R.

[theshredda]

WHOA HE'S NOT WEARING A T-SHIRT

[dioxviad]

your hairstyle is coming in Nicely!

[wushuk1ng]

Best way is to stick a thermometer to the base of your heatsink.

[Robnby]

good info man.

[salsa2good]

tell us wtf transistors on gpus are!!!

[Robnby]

@salsa2good google it

[salsa2good]

google it? instead of you clicking this video why didndt you "google it" when i google what i just requested it lacks info

[Robnby]

@salsa2good that was sorta an insult. its such a easy explanation that i just said google it.

[aplayaz2000]

rodney rules!

[hahaha10001]

I like the shirt rodney.

[HaydieB]

wow, new shirt? :)

[rampageturke]

the best place to get the cpu temperature is in the BIOS all the programs are shit, end of

[Oreomeister]

@rampageturke No. bios is very very often not core tempurature, which is what matters.

[pcclanrocks]

not true there are cases where the bios is total wrong

[Snapscape]

@pcclanrocks In a case like that, it often means something on the motherboard is malfunctioning, has failed, or has a bug in the BIOS. Most quality motherboard manufactures ensure that BIOS upgrades give accurate reads.

[Snapscape]

@rampageturke Programs that are designed specifically for a particular motherboard do use BIOS information to read-out temps.

[rampageturke]

thats why HWmonitor and all other temp programs dip to about 15c idle and when i;m in bios its always around 20-25c

[Snapscape]

The programs I'm talking about are native to the motherboard and are usually accompanied with a proprietary chipset specifically for that purpose. Companies like Asus have their own hardware monitoring software, and it's with those programs that will give you proper readings.

[TylertheGeek28]

Rodney one quick question, my cpu core temps have been stuck and i believe the core censors may be stuck, how possible is this? no really a huge problem, just a little annoying and a little worried, thanks, great video

[SomeMoreVideos2468]

It's quite possible for sensors to get stuck, however if your CPU is kept very cool i.e. an efficient CPU under a large heatsink or something then it might not get hot enough to 'trigger' the sensors/the temp might be under the minimum value they can read.

[TylertheGeek28]

i agree, its more annoying then any thing because all i have to guy by now is the cpu temp seen as the core sensors may be stuck, thanks

[asus3571]

not sure were to post q@a questions hopefully youll be able to help me out im sure lots of others are wandering also but what are the 2ethernet ports on the back of some mobos for?

[Epsilon0703]

thanks

[EyeOnTheTV]

Rodney,  What's the difference between HDMI and DisplayPort?

[AniTraVid]

HDMI can be called a "Media Display Plug" mainly for consoles and some PC's... DP is a new type of PC only plug ... the differance bieng that DP can be split into up to 4 monitors and HDMI can't...

[Zerololz]

They are pretty much the same, just competing ports... however the only difference I've ever read on is that the HDMI wired signal loses some signal strength after 15m, but not like you'll need a 15m HDMI cable anyways. Theres always adapters for Displayport to HDMI or what ever. :) Maybe theres more to it, but as far as I'm aware thats all there is to it.

[stryeker]

Good question Rod, I always have been wondering what the dif was.

[narcis4none]

veryy good,Thank You

[cusinndzl]

Nice video.

[garethrogue]

No Rodney, bad shirt. worst.boxing day.gift.ever

[SonsOfHateSphere]

That's why we all should get a ThermalRight Venomous X, so we don't have to think about temps...

[HAMAZA7123]

nice thanks

[CruelQuertos]

thanks 3d man

[Omellykim]

nice to know

[TheAnvilMan]

Very good Question and Answer. . .

[techymarky]

good to know. thanks rodney

[TheGamesHD]

My E8400 at 3 ghz with a CPNS 10x is perfect CPU temp at 25 C and core at 38C at all times

[kidowner]

@TheGamesHD good :) coz thats what cooler im gonna get, thx for the info :P

[TheGamesHD]

haha i kneww that it would get someone, but when u do get it, the thermal paste is reaaaaaally thick so if you try and put just a rise size of that, forget it xd you need to put enough so theres a millimeter of thermal paste, no joke otherwise it doesnt spread around,

[kidowner]

@TheGamesHD mm im gonna put artic silver 6 or OCZ freeze :P

[TheGamesHD]

ooh ok, it got me stressed out when i saw it, it was my firt attempt to put that shit on and i was like FUCK, should have left it at the shop LOL, though it performs really well, when i had OC'ed it to 3.6 Ghz the temps were still at 40 C at max load

[kidowner]

@TheGamesHD yea.. i intent on putting it on an AMD phenom II cpu :P and overclock to like 3.8ghz..(even though i never overclocked as im a newbie in overlocking..)

[ipnhesbro]

@kidowner i got an 965 black edition with cpu cooler zalman CNPS 10x extreme it ownz ;)

[kidowner]

@ipnhesbro good for you :) i thought of getting the same but im gonna wait for their amd 32nm processors :)

[grooveclubhouse]

Sweeeeet! thats what im getting. going to throw a hyper n620 by cooler master on it. just waiting on mr postman.

[kidowner]

@TheGamesHD i mean artic silver 5 , ops :P

[DogoSanji]

If you use a program like Real Temp or Speed Fan, they tells you the core temp.

[NoRogeR]

CoreTemp is one of the lightweight ones for AMD/Intel.

[TearsOfWar1]

I actually have a program or something that tells each core's temp.

[AndreaFranchitti]

@TearsOfWar1

there's plenty of it

[Nopiw]

these programms are all fail

none of them gives a correct read

[VNWTV]

thanks wanted to know :)

[MarkQP]

ok.