What E6600 VCore is too high ?

[imported_Buckster]

I have a week 24 E6600 which likes its volts

I'm running at the moment at 1.437V @ 3.2 gig -is this too high for 24/7 operation.

I can run at 1.3875 at about 3.0 gig.

At the 1.4375/3.2 gig I'm at about 39C idle (as measured in TAT, 35 in Probe), and max load temp in TAT running Orthos is 54C.

Thanks for any help,

Mark.

 

[Pabster]

My personal rule is +/- 10% and no more. The stock vCore is 1.3250 so I wouldn't go past 1.45v.

1.437 is just fine, provided you have sufficient cooling.

 

[MADMAX23]

First of all, check your actual (real) Vcore with CPU-Z 1.36 while running ORTHOS Small FFTs test....You´ll see what is called a "Vdroop", that means; the amount of voltage you set in Bios will drop a little in Windows. So, open, CPU-Z first, check the Vcore and don't close CPU-Z, then open ORTHOS and run Small FFts stress test, once Orthos is running, check the vcore in Cpu-z, that's the actual voltage you're giving to your Cpu, got it?

I warn you because I don't know if you have already checked this. It's very important.

This said, I wouldn't give a C2D chip more than 1.5v (after Vdroop) for 24/7 use and honestly, I won't give my E6400 more than 1.450v for an everyday use even if I could not overclock it to 2.33Ghz...

I do love overclocking but not overvolting the hard way....just the sweet way.

 

[imported_Buckster]

thanks very much guys.

1.4375 is indeed before Vdroop - running Orthos small - probe reports 1.38V - which I suppose isn't that high at all really is it !

MadMax - 1.45V - is that 1.45 reading in probe I presume then ?

One interesting thing is that my CPU temps seem a bit lower with the new 0711 bios - is that even possible ?

thanks again, Mark.

 

[renozi]

Hey buckster, I have a week 24 e6700 @1.4375 before vdroop too. I think that should be fine. I go with Pabster's +/- 10% also, only in the + direction

Seems perfectly stable to me. 24/7 still cool. enjoying your C2D?

 

[imported_Buckster]

Renozi - certainly am brings a smile to my face every day (1) with how overclockable it is (2) how quick it is with games, (3) how quick it recodes DVDs for my PDA etc

what sort of temps do you get with your E6700 ?

I have the 1900XT card like yourself - I like that too

cheers, Mark.

 

[n19htmare]

Dang.... You guys feed a lot of Volts to your systems.
I got my E6300 at 3150mhz at 1.3v Bios and 1.24 in windows and it's 8hours orthos. 3200mhz is good at 1.34 or so Volts...

 

[imported_Buckster]

- its probably the extra cache we've got

or is it

Cheers, Mark.

 

[raincityboy]

I agree on the 10% rule, but I thought conroe was up to 1.3525 stock.
On the Vdroop issue, I wouldn't trust sw one bit. Every prog was reporting about a .3 drop on my board. Took out my meter, and found out it was only .003.

 

[MADMAX23]

1.38v is not that much so feel safe and happy!!
Yeah, When I talk about voltages I'm assuming the Vdroop, so if I say 1.45v Max Vcore, means 1.45v after Vdroop (actual Vcore), not 1.45v in Bios.
You are welcome!

 

[imported_Buckster]

thanks again

the only thing I regret is buying the RAM I bought - Corsair 5-5-5-15 TwinX ...it doesn't overclock well at all ! - best I can do is 850 CAS5 - at any voltage, which is a bit pants really.

at CAS4 it can only do about 650 MHz, I'm currently running it at 1:1 @ 700 MHz, but at CAS 5 (can't do CAS4 at that speed, and can't do CAS5 at the 4:5 at that speed )

Mark.

 

[cbuchach]

Originally posted by: Pabster
My personal rule is +/- 10% and no more. The stock vCore is 1.3250 so I wouldn't go past 1.45v.

1.437 is just fine, provided you have sufficient cooling.

I agree with this. I have my E6600 running at 3.46 GHz @ 1.45 volts which seems to be the sweet spot for my chip.

 

[Nightmare225]

Originally posted by: cbuchach

Originally posted by: Pabster
My personal rule is +/- 10% and no more. The stock vCore is 1.3250 so I wouldn't go past 1.45v.

1.437 is just fine, provided you have sufficient cooling.

I agree with this. I have my E6600 running at 3.46 GHz @ 1.45 volts which seems to be the sweet spot for my chip.

Just curious, but what Temps and cooling do you have?

 

[cbuchach]

I have a ThermalRight Ultra 120. Temps with CoreTemp when stressing with Orthos ran around 58C with my motherboard temp on the P5W reading 41C at the same time. FSB is set to 384x9 with a 1:1 memory ratio with the memory at CAS4.

 

[cbuchach]

Oh, and my E6600 is a week 28 chip.

 

[The-Noid]

Since no one has really had any problems that have been running their chips overclocked at 1.6v for 6-7 months on Engineering Samples (ES) I would say 1.6v is the max for 24/7. You have to watch temperatures though. With high heat and high vCore you are going to have a problem, with high heat and low vCore you are going to have a problem. With low heat and high vCore, you will have a problem, but it could be as much as 2 years and who keeps there processors that long. Generally speaking from tests in the past every increase of vcore by 10% causes processor life to halve, obviously there is instantaneous death involved with extremely high vcore as well.

 

[BuddyHolly]

And keep in mind the importance of cooling. With my water cooling system my chip runs extremely cool. 3.6ghz@1.55 after vdroop is factored in doesn't worry me for 24/7 use. I have run tons of voltage to an old Barton core in another water cooled machine for 24/7 use for 3 years or so...It is still chugging along at 2.1v if I remember right up from 1.5v stock. I still have a 566 celeron running at 1000mhz for six years or more (man, has it been that long?) with something like 40% over stock voltage. It has been running 24/7 on my kids computer for most of that time. Before that it ran with my TEC and water cooling at 1300mhz, my one and only processor to run double its speed. I can't remember the max voltage I gave that on to get there, but I did have a motheboard mod to feed it like 50% overvolt.
Either way, despite years of trying, I have never killed one due to voltage. Now that may be luck, but I think they most processors are pretty tough to kill with voltage if you keep them cool.