1.6v safe for e6600?

**W4ffl35** · 03-23-2007, 02:14 AM

Hey guys,

In my quest for 3.6ghz I've finally reached it but, with 1.57 volts. I'd like to keep it stable but I don't know how much longer it'll last on 1.6. I have a tuniq tower btw. Also it seems I have one of the newer suckier batches. So 1.6v for 3.6 or 1.5ish for 3.4ghz?

**DAK1640** · 03-23-2007, 02:15 AM

I wouldn't use 1.6V

**dekruyter** · 03-23-2007, 02:17 AM

No way.

**Shintai** · 03-23-2007, 02:50 AM

Anything over the factory value wouldn´t be considered safe. But I say anything over 1.45V aint safe and over 1.5V it starts to be damaging over time or worse.

**ziddey** · 03-23-2007, 03:01 AM

http://www.xtremesystems.org/forums/...d.php?t=133650
scroll down to post 8.

it looks like most of us are a whole lot more scared with the cpu than the motherboard itself. Look at mch. 1.313 / 1.375??? most of us run 1.4 or 1.55.

vtt of 1.26 / 1.32?? this is also known as vfsb. considering stock 1.2v, even +0.1v is pretty much hitting absolute limit

ich... the only other option besides stock in the asus p5b is 1.215, which is already past max, although ich seems to have an inordinate abs max.

take of that what you want. i guess a lot of people figure cpu's to be more expensive than motherboards, which in your case is true I suppose.

Most people would say, if it can be kept cool running, keep it 1.6 or lower.

**billdavis** · 03-23-2007, 03:02 AM

buy another proc and sell that one on e-bay
________
Jaguar Mark X History

**Chrono Trigger** · 03-23-2007, 03:47 AM

Guess not eh? My brother bricked his C2D with a 1.65V..

**kiwi** · 03-23-2007, 04:31 AM

Depends on temp. If TAT stays below 80C during high load and thermal monitor is not active then you should be fine. Dont forget to cool your mb/ram/chipset

Originally Posted by Chrono Trigger

Guess not eh? My brother bricked his C2D with a 1.65V..

Can you elaborate?

**Lestat** · 03-23-2007, 05:19 AM

i wouldnt use 1.6 unless your on a very good water loop or other type of non normal cooling.

and even then over time it will damage the cpu.

if you need 1.6 to get to 3.6, then you got a bunk clocker.
its not a bad cpu, as it does what you paid for its just a bad clocker.

i too would sell it and get another one.

**argylesocks** · 03-23-2007, 05:23 AM

Originally Posted by ziddey

http://www.xtremesystems.org/forums/...d.php?t=133650
scroll down to post 8.

it looks like most of us are a whole lot more scared with the cpu than the motherboard itself. Look at mch. 1.313 / 1.375??? most of us run 1.4 or 1.55.

huh? i don think i even have the option of lowering my Vmch to 1.375... hmm.
i have it set at 1.55 and if i remember correctly that was right in the middle of my options...

**Shintai** · 03-23-2007, 05:37 AM

I keep my vmch at 1.25V

**argylesocks** · 03-23-2007, 06:06 AM

Originally Posted by Shintai

I keep my vmch at 1.25V

on the XBX2, there are options from 1.50 to 1.70 for the MCH/ICH
(not possible to go to 1.375 & definitely not 1.25)

----

on the XBX2, there are options from 1.20 to 1.50 for the FSB

*pictures stolen from Supertimor from this thread
http://www.xtremesystems.org/forums/...d.php?t=124131
(page1)

**CedricFP** · 03-23-2007, 06:15 AM

I don't consider 1.6 dangerous... I'd happily use that on water. Did with my ol' 165 and it is still chugging away at that voltage...

**Shintai** · 03-23-2007, 07:32 AM

Originally Posted by argylesocks

on the XBX2, there are options from 1.50 to 1.70 for the MCH/ICH
(not possible to go to 1.375 & definitely not 1.25)

P5B Deluxe is P965 based (90nm) and runs at a lower voltage than the 975X (130nm).

**psy4fun** · 03-23-2007, 07:35 AM

Please, post more details about your rig (mobo, cpu, ram, cooling type, cpu week if possible, etc) and let us know your temps alongside the program or method you have used to measure the temps with such voltage.

Originally Posted by W4ffl35

Hey guys,

In my quest for 3.6ghz I've finally reached it but, with 1.57 volts. I'd like to keep it stable but I don't know how much longer it'll last on 1.6. I have a tuniq tower btw. Also it seems I have one of the newer suckier batches. So 1.6v for 3.6 or 1.5ish for 3.4ghz?

**Falkentyne** · 03-23-2007, 07:56 AM

Well, it's funny how I'm once again proven right.

I was horribly flamed by Wizilla (?) sorry forgot exact name and I don't visit forums as much as I used to, and a couple of other people, when saying that high voltages may be damaging to a C2D just like they were to northwoods, and those flamers said that "Intel had fixed that problem", when I _repeatedly_ posted concerns about that. Those above people kept telling the users to just get good cooling and pump the voltage. I guess people here dont care about ANYTHING when it's not their own money at stake. Now, months after being flamed, suddenly a lot more people are starting to believe and support what I have mentioned all along. The sad thing is, those posters have helped people with many other problems and have been an asset to these forums, but they treated me like I was a complete beginner when it comes to overclocking (I'm age 35; been overclocking since the 166MMX days). And now that some people have seen degradation in some C2D's, the flaming has all but stopped. I would go so far as to suggest an apology was in order, but whatever. And for the record, I've seen some degradation on my C2D. Its about .03v or so, but it has happened. (Core 0 is the affected core for first failures). Next time I post about "Conroe gradual death syndrome", please don't flame me. We don't need people's chips dying JUST because NOT EVERYONE suffers from the problem. That's how teenagers think: "if it doesn't happen to me, it wont happen to anyone". And it costs people *Money*. Not your money, of course...

**Shintai** · 03-23-2007, 08:57 AM

Originally Posted by Falkentyne

Well, it's funny how I'm once again proven right.

I was horribly flamed by Wizilla (?) sorry forgot exact name and I don't visit forums as much as I used to, and a couple of other people, when saying that high voltages may be damaging to a C2D just like they were to northwoods, and those flamers said that "Intel had fixed that problem", when I _repeatedly_ posted concerns about that. Those above people kept telling the users to just get good cooling and pump the voltage. I guess people here dont care about ANYTHING when it's not their own money at stake. Now, months after being flamed, suddenly a lot more people are starting to believe and support what I have mentioned all along. The sad thing is, those posters have helped people with many other problems and have been an asset to these forums, but they treated me like I was a complete beginner when it comes to overclocking (I'm age 35; been overclocking since the 166MMX days). And now that some people have seen degradation in some C2D's, the flaming has all but stopped. I would go so far as to suggest an apology was in order, but whatever. And for the record, I've seen some degradation on my C2D. Its about .03v or so, but it has happened. (Core 0 is the affected core for first failures). Next time I post about "Conroe gradual death syndrome", please don't flame me. We don't need people's chips dying JUST because NOT EVERYONE suffers from the problem. That's how teenagers think: "if it doesn't happen to me, it wont happen to anyone". And it costs people *Money*. Not your money, of course...

Fanboys are dangerous.

In fact an Intel engineer once memorably told in an article: "Hell, run 'em as fast as you like. When it blows up we'll be happy to sell you a new one."

But they won't prevent the CPU failing -- you cannae change the laws of physics Jim, as a famous engineer once said.

Well, electromigration and the hot electrons phenomena will teach them otherwise.

**W4ffl35** · 03-23-2007, 10:58 AM

Originally Posted by psy4fun

Please, post more details about your rig (mobo, cpu, ram, cooling type, cpu week if possible, etc) and let us know your temps alongside the program or method you have used to measure the temps with such voltage.

e6600 / P5B-DLX / 2gb (2x1gb) Ballistix PC2 8000/ Air cooled with Tuniq Tower and AS5. I'd rather not have to take my computer apart to find the week. Is there another method to find this out? I've dropped my volts back and using ASUS's PC Probe it says I'm idling at 30c I've yet to get it stable enough to test in orthos to find load temps though.

As much as I'd like to sell this cpu I don't have the little black plastic piece to protect the chip which could cause problems with shipping and such. That and I think I could only get 250 or so for it (low on funds). Thanks for all the help guys. I'll update the rest of the volts soon.

**psy4fun** · 03-23-2007, 11:28 AM

Originally Posted by W4ffl35

e6600 / P5B-DLX / 2gb (2x1gb) Ballistix PC2 8000/ Air cooled with Tuniq Tower and AS5. I'd rather not have to take my computer apart to find the week. Is there another method to find this out?

There's a label in the box.

Originally Posted by W4ffl35

I've dropped my volts back and using ASUS's PC Probe it says I'm idling at 30c I've yet to get it stable enough to test in orthos to find load temps though.

Do you remember the temps when running on 1.6 vCore? Also, I really suggest you to use CoreTemp for temp measurements:

http://www.xtremesystems.org/forums/...d.php?t=103638

Originally Posted by W4ffl35

As much as I'd like to sell this cpu I don't have the little black plastic piece to protect the chip which could cause problems with shipping and such. That and I think I could only get 250 or so for it (low on funds). Thanks for all the help guys. I'll update the rest of the volts soon.

Why not go to a computer store and ask one for free?

**W4ffl35** · 03-23-2007, 11:32 AM

Haha think they'd have one? I threw the box away btw >_>. The reason I'm not using coretemp is it was causing my computer to restart when I'd run it.

**Getttosmurf** · 03-23-2007, 12:03 PM

been feeding my e6600 1.7v (biossetting 1.7v) for about 5 months now on water with loadtemps around 60c dont know how big vdroop so could be 1.65-1.7v. if it lasts 6 more months ill be happy to upgrade to quad. kind of depends if you can afford to replace a dead cpu... if that e6600 is suposed to last for a long time 1.6v seems a bit high otherwise go for it.

my 2c

**DerekT** · 03-23-2007, 01:30 PM

There is a difference of 60C on a non-overclocked CPU and 60C on a heavily overclocked CPU. This is so even when the temperatures are not extensively high. Electronic effects must be also taken into account. Take into account transitory and electrostatic migration levels on the 60C non-overclocked CPU and on a 60C heavily overclocked CPU and you will notice a marked difference. This is one of the reasons why so many overclockers wish to stay lower than the Processor Stock Thermal SPec rating and even when this is done, the effects are lowered, not isolated or held in complete abeyance. This is a reason why 24/7 running of highly volted and overclocked systems can show instability after many days of use, even when tested stringently with Orthos Prime and found valid.

There is a condition called "Threshold Voltage" which is the amount of power necessary to turn on and switch the transistors gates.

There is a formula for the switching power:

Power ~ ½ CV ² Af

This formula states that dissipated power is linear with the effective capacitance, activity and frequency. Power increases quadratically with the CPU's core voltage. Thus when you overclock you are increasing the necessary voltage by a multiple and the voltage effects are not linear but multiplicative, quadratic/exponential so one cannot look at 1.45v and 1.6v and only see a .15 differential in voltage. While this is the case, the view does not take into account the power requirements of such an increase and the effects of this increase on data transmission.

There is more to overclocking than voltage and heat dissipation of the CPU. If the data is being invalidated due to transitory discharge and must STALL | --> flush--> re-access and validate data more frequently then the overclock is marginalized and the CPU is maltreated.

**safan80** · 03-23-2007, 01:35 PM

1.6 vcore is not good.

**Getttosmurf** · 03-23-2007, 01:49 PM

Originally Posted by safan80

1.6 vcore is not good.

doesnt that kind of depend on how long you want it to live ? benching at 1.8v++ seems to score kind of good .... if you want it to live for a long time then i agree but for a few months or a year untill next uograde then why not ?? if this was xtremesafesystems.org well that would be another story

**W4ffl35** · 03-23-2007, 01:51 PM

Well, as close as 3.6 is, I'd rather not fry a 300$ chip for 200mhz. I'm not made of cash (High School Student) So this needs to last 2 year+. But I am at 9x380 with 1.5v 27idle / and was hitting 50 before orthos had a failure.

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