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Stock e8600 - comments on temps/voltages please?

Damage Inc

Damage Inc

Damage Inc

Associate
Joined
9 Jun 2006
Posts
139
Location
Crawley (its so lovely)
Hi guys,

just finished a complete new build and for the first time in my life I am intending to overclock - however before I go messing with stuff i barely understand I figured i would see how things were at stock. Can people comment on these voltages/temps please as to me, they seem perhaps a little high:

Idle:
Core 1: 42c (coretemp 0.99.3)
Core 2: 40c (coretemp 0.99.3)
Core Volts: 1.032v (CPU-z)

Under P95 torture test (only ran for 5 mins)
Core 1: 58c
Core 2: 53c
Core Volts: 1.136v

Build: e8600 e0, tuniq tower (min fan speed)
Weather: very hot - must be about 30c outside.

Let me know your thoughts guys? Do i need to rebed the tuniq? lap it? or is this okish (given the insanely hot weather)

Dam
 
1st off the default/stock Voltage for 3.33GHZ is 1.2v.

Test it all at stock 1st. ;)

I would guess you have VCore set to Auto in the Bios, if so change it to 1.2v.
 
uh oh.

I havent touched the bios at all - so if 'auto' is a default setting then thats where its currently at.

2 things then:
if i set it to 1.2v thats going to raise the idle temps a lot right?
why does the ASUS p5q-e i have undervolt the chip by 0.2v??

kinda worried by that...

Dam
 
You need try, 1.2V is the DEFAULT/STOCK Voltage so if it does raise the idle its where its meant to be at. :)

You can mess with Overclocking or Undervolting once you get Stock stable. ;)

Intel make Mobo Manu's undervolt their CPU's for their own dumb reasons.
 
Surely the stock voltage will depend on the VID of his chip? Get coretemp and you will see the VID there, then set your voltages manually.

What mobo are you using?

The temps dont seem too bad if its that hot out.
 
okies. will try that out.

Got to go to a beer festival now tho so will try tomorrow morning (hangover not being too bad)

Dam
 
Cob said:
Where do you get this from? I've seen them as high as 1.25v.
Click to expand...

Forget the VID for now, Core temp reads my VID static at any speed at 1.2125v which is BS as it does 4GHZ with 1.056v, and on all other CPU's the VID changes as the Clock changes (remember E8600 have changes in them).

Real temp will give you a Low VID and a High VID so it should be in that range IMO.

The DEFAULT Voltage for a E8400/E8500/E8600 is 1.2v.

The CPU box will have MAX Voltage on it, its 1.225v for E8400's/E8500's and 1.26v for E8600's, and Intel site and my Mobo Auto sets it to 1.2v if I do not do manually.

And its pretty much common knowledge

He should concentrate on setting everything to Intel's default spec's then worry about other aspects later.

Either way 1.136V is less than it should be but it should pass but as I said you test all at stock 1st.



----------------------------------------------------------------------------------------------------------------------------

QUOTED :


" During our overclocking experiments we decided to find the maximum frequency for our Core 2 Duo E8600 processor when working at its default Vcore of 1.2V. "



http://www.xbitlabs.com/articles/cpu/display/core2duo-e8600_3.html
 
Last edited:
Do you have Speedstep on? If so, it's running at 2.00GHz when idle and hence the low voltage reading in CPU-Z. Load up CPU-Z and try putting it under load, then read the voltage.

My VID for this CPU is 1.2500. Voltage reading in CPU-Z is lower than that even if I set it to 1.2V in the BIOS.
 
Voltage reading on "Auto" voltage in BIOS:

cpuzautofw2.gif


Voltage reading when set to 1.2V in BIOS:

cpuz12vuh5.gif
 
Cob said:
And?

Surely you've been in the loop long enough to know that default voltages differ drastically between chips of the same model?
Click to expand...

Look you did not seem to believe it was 1.2v

That is the Default/Stock Voltage, unless you have some "bad batch" that Intel sell off cheap and state they needs extra volts then they are all 1.2v (which they dont).

All E8400's / E8500's / E8600's are 1.2v by default period (Windows will droop it due to Intels specs obv unless LCC is solid).

What more do you want ?.

Email Intel instead of pestering me for info that's well known m8. :)

You should also be in the loop long enough to be able to read articles and read spec's of a CPU and know its voltage. ;)

Debating with me about the well know fact of a default Voltage of these CPU's is not helping the OP TBH.
 
Last edited:
Hi guys (and anyone else),

Im back from the beer festival now and although mildly hungover I am back on the case of figuring out:
a) if the new build ive just done is ok
b) how to get the best out of the 8600 i have with air and some steep learning

So as a start ive downloaded a bunch of monitoring apps as suggested by Azza in the overclocking sticky and taken a snap of the system at stock, after its been on doing nothing but browsing the internet for 2 hrs (see below).

System:
E8600 E0
Asus P5Q-e
Tuniq Tower 120 (set to min)
4 gig ram, GTX 280 graphics.
Case has 3 x 120mm (2 in, 1 exhaust) - set to min (800 rpm)

Snapshot:

8600stockidle.jpg


Following on from the thread, Im essentially a bit confused as to why the ASUS mobo appears to be undervolting the CPU by 0.2v ??

Are the temps at idle ok for a 8600? (should the tuniq be generating much lower idle temps?)

Do i need to go into the bios and make the ASUS volt the CPU at 1.2v??

Im pretty new to all this but willing to learn and fiddle about as eventually I want to overclock this and have some fun

Cheers for any replies
Dam
 
You have Speedstep enabled, so the CPU speed and voltage is droping at idle. Both should go back up once some load is applied.
 
How do i disable speedstep please Cob?

i would like to know what the idle temps are like with speedstep off and the core voltage where it should be.

Cheers,
Dam
 
Im sorry to sound loke a total idiot but:

Whilst waiting for a reply to my last post i googled turning off speedstep in the ASUS P5Q bios. It showed speedstep under "advanced"

Simple I think and reboot and have a quick look.

i went through every menu and submenu in the entire bios and found nothing that mentions speedstep or anything that even might have a different name but do the same thing as speedstep.

I didnt look for EIST though as I hadnt read your post at the time.

I will have another look for EIST....but I am baffled as to why a brand new p45 mobo from asus dosnt appear to have the ability to turn off speedstep. I must be missing something.

Dam
 
Under Advanced > CPU Configuration you'll find the following settings:

C1E Support
Max CPUID Value Limit
Vanderpool Technology
CPU TM Function
Execute Disable Bit
PECI

Personally I disable them all but I believe the setting you're looking for is C1E Support.
 
Well, since my last post I have downloaded the latest bios from ASUS for the P5Q-E.

It flashed sucessfully and all of a sudden "SpeedStep" has now appeared within the Advanced>CPU settings area (where I was looking for it before).

Now its appeared I have disabled speedstep.
however all the other ones you mentioned are currently enabled.

After re-booting into windows and ensuring in power management settings that the PC is set to "high performance" i ran all the system monitoring tools again.

nothing has changed.
One core still idles at 40 and the other between 38 and 42.
Vcore is still 1.032v at idle according to CPU-Z
Coretemp says that my VID is 1.2125v

So, is my next step to now manually raise the vore voltage to 1.2v?
why do I want to do this? i dont really understand.
i just stress tested for 30 mins under Prime 95 and temps went to approx 58-60 on each core but no higher and it was rock stable.

Whats the reason for increasing core volts? what does it gain?

Dam
 
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