Can I 24/7 with 1.55 vCore on a 6600 + P5WDG2 WS Pro?

[Speederlander]

Title. I have a nice OC but I have some high volts. Is 1.55v vCore too much or acceptable? I'm air cooling w/SI-128 and a 102 CFM sanyo denki. Getting 39c or so idle and 59c or so full load with dual instances of Prime95 running torture mode. Other apps (like games) stay in the 40's. System is very stable.

[serious1]

Title. I have a nice OC but I have some high volts. Is 1.55v vCore too much or acceptable? I'm air cooling w/SI-128 and a 102 CFM sanyo denki. Getting 39c or so idle and 59c or so full load with dual instances of Prime95 running torture mode. Other apps (like games) stay in the 40's. System is very stable.

well as long as you are comfortable with those temps i say go for it. i am personally not comfortable with anything over 55c.

[Speederlander]

well as long as you are comfortable with those temps i say go for it. i am personally not comfortable with anything over 55c.

won't be anywhere near 55c once I am done stress testing it. Gaming never seems to creep above 50c. Nothing else I do loads like dual prime torture test.

[serious1]

well i would say go for it then.

[AndrewZorn]

is that in speedfan/asus or coretemp

[Speederlander]

is that in speedfan/asus or coretemp

Coretemp. Asus utility gives me higher. Everyone says "trust coretemp" so I trust coretemp. I hope my trust isn't misplaced.

[afireinside]

Trust stability, not temps. You're fine.

[erwinz]

go for it.. but if you have the time and the money.. invest on water cooling..

[Truckchase!]

Neither stability nor temps have an impact on the long term life of the chip, if that's what you're getting at. The only thing that has a significant impact on the life of the chip is voltage. There isn't really a "too much" defined, but you're running above spec, and that will shorten the lifespan of your chip. Could be 10 months, 10 years, or 10 decades.

Risk/Reward at it's best.

[lawrywild]

Neither stability nor temps have an impact on the long term life of the chip, if that's what you're getting at. The only thing that has a significant impact on the life of the chip is voltage. There isn't really a "too much" defined, but you're running above spec, and that will shorten the lifespan of your chip. Could be 10 months, 10 years, or 10 decades.

Risk/Reward at it's best.

wrong, temps have a great effect on cpu lifespan

[Durzel]

Isn't 1.55v the Intel max vCore for Core 2 Duo? Either way <60 degrees is nothing to worry about at all.

EDIT: Yeah, it is..

[Lestat]

hahah storage temperature haha

in other words dont sit it on your car seat and go into the grocery store!

[Truckchase!]

wrong, temps have a great effect on cpu lifespan

"Great" is tough to classify. Please read up:

http://www.techonline.com/community/..._article/20421

Keep in mind the temperature flux we're talking about is very minor on the scale of CMOS operation. We're debating load temps between 52 and 68c or so. In that range, there isn't enough impact on the effects of electromigration vs. current(V), which is on an exponential scale. If we were talking temps of 20c vs. 100c, then I agree it would effect the lifespan greatly, but that's not the case here.

[Elton523]

Well, there was a test showing that Coolaler is running QX 6700 over 105c, and 1 core had failed to test, only 3 left running...
I guess Intel's CPUs have strong body...anything below 75c you can sit back and relax...

[AndrewZorn]

i thought coretemp was usually HIGHER...

i get like 60*C in coretemp and 46*C in speedfan for maxes... ???

[Speederlander]

i thought coretemp was usually HIGHER...

i get like 60*C in coretemp and 46*C in speedfan for maxes... ???

I get coretemp showing 58 and Asus showing up to 62 or 63.

[Dumo]

Heres my 24/7 set up on air with all stock in bios, exept multi @14X....With P5W64 though...

[fhpchris]

If only all of our cpus clocked like dumos!

Daily on a retail E6600:

[Speederlander]

If only all of our cpus clocked like dumos!

Daily on a retail E6600:

Holy voltage batman...

What's your vFSB and vMCH? What is your actual vCore setting (not the overvolt effected result)?

Also, do you set your memory timings manually or let it go SPD?

[fhpchris]

I run:
1.4vFSB
1.8vMCH

I dont really see a reason to run less...

1.7v in bios @ P5WDG2 WS PRO.

Manual memmory timings...

[Falkentyne]

That's for you. Whatever rocks your boat.

Some people don't like burning out their hardware with excessive voltage.
And if someone did, you would be the first one on here flaming them for stupidity in some way.

Every time you come here touting "hey! let's use excessive voltage", I will be right behind you telling people to use common sense. I wasted hundreds of dollars listening to people like you. I know better now.

[fhpchris]

A few problems here:

1) 1.55v isnt even close to excessive, and is EASY and SAFE 24-7 even on a Tower 120 or Big Typhoon. Clearly if the heatsink is cold (and a good one with a good fan will be...), 1.65v isnt that bad, 1.55v is cake on air.

2) I am not for mindlessly killing hardware, you do not see me up in here like, " ZOMG I RUN 2.8 VDIMM DAILY!!!!!1111oneone111!"

My 6700Es does not clock better with 1.55v->1.65v, so whats the point?
My L623 E6600 got 400+ mhz out of 1.55v->1.65v.

1.55v is safe.

WTF is with people @ XTREMESYSTEMS crying about voltage?

Dude what are you using for cooling? Also go for it and dont be scared of it dieing on you , feel the HSF and as long as its not touch hot keep on going.

That sounds like simple common sence to me, and its comming from [H]

[Durzel]

A few problems here:

1) 1.55v isnt even close to excessive, and is EASY and SAFE 24-7 even on a Tower 120 or Big Typhoon. Clearly if the heatsink is cold (and a good one with a good fan will be...), 1.65v isnt that bad, 1.55v is cake on air.

2) I am not for mindlessly killing hardware, you do not see me up in here like, " ZOMG I RUN 2.8 VDIMM DAILY!!!!!1111oneone111!"

My 6700Es does not clock better with 1.55v->1.65v, so whats the point?
My L623 E6600 got 400+ mhz out of 1.55v->1.65v.

1.55v is safe.

WTF is with people @ XTREMESYSTEMS crying about voltage?



That sounds like simple common sence to me, and its comming from [H]

Are you an Intel engineer? Are you an expert on 65nm technology?

Intel lists 1.55v MAX in their own specifications. How much further over that you need to go to start to see electromigration is anyones guess, but it's fairly safe to assume that if you run above 1.55v for an extended period of time the CPU will eventually degrade to the point of failure. Whether "eventually" means 3 years or 3 weeks is anyones guess, but its a certainty. The candle that burns twice as bright burns half as long.

By your logic temperature is the only thing you need to worry about, and "if the heatsink is cold" then everything is ok. I disagree. Excessive voltage is a killer regardless of temperature.

I wouldn't want to run more than 1.55v maximum on air, and less on boards which overvolt. Unless you don't intend to keep the processor for an extended period of time.

[fhpchris]

Are you an Intel engineer? Are you an expert on 65nm technology?

Well, um, lets just say I have owned more conroes in this month alone than you have owned video cards this year. 1.55v is safe as a rock. If you do not want to run 1.55v, no one is forcing you too.

Intel lists 1.55v MAX in their own specifications. How much further over that you need to go to start to see electromigration is anyones guess, but it's fairly safe to assume that if you run above 1.55v for an extended period of time the CPU will eventually degrade to the point of failure. Whether "eventually" means 3 years or 3 weeks is anyones guess, but its a certainty. The candle that burns twice as bright burns half as long.

And they also do not mention anything about the operating temperature or other conditions of use. I have seen stock voltage/never overclocked P4 xeons die and ive seen 1.7+v P4s continue to take a beeting and never degrade.

I get sick of these tech junkie "know it alls" comming in here and telling me how they ASSUME with no data, or proof or anything (the intel tech sheet isnt impressive) how magically 1.549v works forever and 1.551v will "killzorz your cpuzors right away!!!!!111" IF you do not think that operating temperature has something to do here, then you just need to leave, now.

What about running your CPU on LN2/DICE/PHASE? Intel clearly says on its "Master Spec sheet of GOD" that -40c is minimum store temp, and LN2/DICE are much colder than that.

Why dont you go on the LN2/DICE forum and ask those users to stop abusing conres, because it isnt morrally right! After all, the "Master Spec sheet of GOD" says so and its never wrong.

By your logic temperature is the only thing you need to worry about, and "if the heatsink is cold" then everything is ok. I disagree. Excessive voltage is a killer regardless of temperature.

Sure 3.3v on Ram instantly killed Denny's D9, but how can Hipro and Kunak run more than that? There is a very complex equation that relates degrading and temperature and other variables, Temperature has a HUGE effect in the service life of a semiconductor, so you might want to "believe" something else, or mabye, somewhere else. 3.3v is only about an 85% increase in operating voltage...

1.65v is only what? a 25% increase in voltage? It just isnt very significant as long as temperatures! stay under control.

I wouldn't want to run more than 1.55v maximum on air, and less on boards which overvolt. Unless you don't intend to keep the processor for an extended period of time.

I do not care what you "WANT", "THINK", "BELIEVE", or anything else among those lines.

Any proper aftermarket air cooling (I even listed Tower 120 or TT BT) can be run 24-7 and it will not degrade the cpu or effect the service life.