Overclocking and Vcore...... how high can i go

[BigCoolJesus]

OK, basically all i want to know is when i get a new CPU (probably mid April, even though ive only had this one for 3 months now (i upgrade often, so dont ask)) i want to torture the crap out of my current CPU without frying it (3500+Venice)

So, how high can i possibly go with Vcore, and what are the highest temps i can have before i have to worry about a meltdown?

 

[imported_Kensai]

1.7V and you better have watercooling, chilled water, peltier + water, phase, cascade, liquid, etc. etc.

<60C load

 

[BigCoolJesus]

Originally posted by: Kensai
1.7V and you better have watercooling, chilled water, peltier + water, phase, cascade, liquid, etc. etc.

<60C load

well actually im at 1.72 for my 3500+ (2.7GHz stable)

and im only pushing 47C under extreme loads (XP-90C with Panaflo)




i was thinking more along the lines of 1.8 or so............:evil:

 

[Buck Naked]

:shocked:

Hows the weather in antarctica today?

 

[BigCoolJesus]

Originally posted by: Buck Naked
:shocked:

Hows the weather in antarctica today?

???



anyways, i found some more help over at extremeoverclocking


they kind of said straight out that an AMD will handle whatever voltage you throw at it, so long as the temps stay under 60C, otherwise your crossing into disasterous territory

 

[imported_Kensai]

1.7.. 1.72.. Close enough.. How do you have 47C load? :shocked:

 

[n7]

Originally posted by: Kensai
1.7.. 1.72.. Close enough.. How do you have 47C load? :shocked:

He likely doesn't.

Most likely his temp sensor is off by about 5-10C

 

[doc2345]

Originally posted by: BigCoolJesus

Originally posted by: Kensai
1.7V and you better have watercooling, chilled water, peltier + water, phase, cascade, liquid, etc. etc.

<60C load

well actually im at 1.72 for my 3500+ (2.7GHz stable)
and im only pushing 47C under extreme loads (XP-90C with Panaflo)
i was thinking more along the lines of 1.8 or so............:evil:

Sure, 47C @ 1.72.... what planet are you on?

 

[imported_Kensai]

Originally posted by: doc2345

Originally posted by: BigCoolJesus

Originally posted by: Kensai
1.7V and you better have watercooling, chilled water, peltier + water, phase, cascade, liquid, etc. etc.

<60C load

well actually im at 1.72 for my 3500+ (2.7GHz stable)
and im only pushing 47C under extreme loads (XP-90C with Panaflo)
i was thinking more along the lines of 1.8 or so............:evil:

Sure, 47C @ 1.72.... what planet are you on?

You could do that with chilled water or peltier + water.
Phase, cascade and liquid would give you negative temps.

 

[Unkno]

Originally posted by: doc2345

Originally posted by: BigCoolJesus

Originally posted by: Kensai
1.7V and you better have watercooling, chilled water, peltier + water, phase, cascade, liquid, etc. etc.

<60C load

well actually im at 1.72 for my 3500+ (2.7GHz stable)
and im only pushing 47C under extreme loads (XP-90C with Panaflo)
i was thinking more along the lines of 1.8 or so............:evil:

Sure, 47C @ 1.72.... what planet are you on?

pluto

 

[BigCoolJesus]

Originally posted by: n7

Originally posted by: Kensai
1.7.. 1.72.. Close enough.. How do you have 47C load? :shocked:

He likely doesn't.

Most likely his temp sensor is off by about 5-10C

again (responded in general hardware also) my temps are very accurate, i am not only going by Epox's readings, but by readings from an actual temp probe, which has never gone past 34C (its taped right on the heatink, out of the way of the fan, so air being rushed by it is not a variable)

 

[Fraggable]

Holy Hell, I get nervous about giving my 3000+ Venice 1.425V to run at 3200+ speeds. (I know that's not normally necessary but it is for me to get Prime95 to run w\out errors).
1.8V... wow... 47C? NO WAY.

 

[BigCoolJesus]

Originally posted by: Fraggable
Holy Hell, I get nervous about giving my 3000+ Venice 1.425V to run at 3200+ speeds. (I know that's not normally necessary but it is for me to get Prime95 to run w\out errors).
1.8V... wow... 47C? NO WAY.

hahaha, no not 1.8, that would be scary :Q

mines at 1.72 and i only get 47C under high loads (by high load, i mean running a CPU benchmark 8 hours straight in Sisoft)


the question of this thread was to ponder what would happen if i went into the 1.8 range (which im gonna do the day before i get my new processor, just to see how high i can get the CPU's speed :evil: )

 

[Leper Messiah]

I ran a clawhammer at 1.9vcore over night. This was with a venus 12 and a 80mm tornado. Temps were about 58C load. It was dead winter, ambients were maybe 15C in my room. Thing primed at 2.5. Not bad for 0339...

 

[BigCoolJesus]

Originally posted by: Leper Messiah
I ran a clawhammer at 1.9vcore over night. This was with a venus 12 and a 80mm tornado. Temps were about 58C load. It was dead winter, ambients were maybe 15C in my room. Thing primed at 2.5. Not bad for 0339...

Holy hell, thats really good, especially given you stayed under 60C with a venus 12.......

 

[cbehnken]

This question gets asked OVER AND OVER again. Use the search function. I'm running 1.65 here on a winchester and most feel it is borderline for air cooling. I'd suggest heading closer to that than to 1.8.

 

[BigCoolJesus]

Originally posted by: cbehnken
This question gets asked OVER AND OVER again. Use the search function. I'm running 1.65 here on a winchester and most feel it is borderline for air cooling. I'd suggest heading closer to that than to 1.8.

Meh, ive asked enough here

frankly, no one wants to believe i ran run at 1.72 and still maintain under 50C during loads.

All the responses i get are

"no way, to high, your temps are totally wrong, to high, blah blah"



But if i got to extremeoverclocking, or overclockers club, theyll tell me 1.72 at 50C is perfectly fine.........
so who do i believe?

 

[blckgrffn]

Well, hmmm... so, I can push some more volts through my Venice, then? I have a XP-90 and a sunon 45 CFM fan... my Epox board reads it at higher temps than yours right now - maybe I should try a temp probe as well....

Thanks for the food for thought!

 

[BigCoolJesus]

Originally posted by: blckgrffn
Well, hmmm... so, I can push some more volts through my Venice, then? I have a XP-90 and a sunon 45 CFM fan... my Epox board reads it at higher temps than yours right now - maybe I should try a temp probe as well....

Thanks for the food for thought!

Im not going by the results from my temp probe, only from the ones from Epox's monitoring software


btw, nice overclock on the E6, lots of people have trouble just getting past 2.4GHz

 

[KoolDrew]

anyways, i found some more help over at extremeoverclocking. they kind of said straight out that an AMD will handle whatever voltage you throw at it, so long as the temps stay under 60C, otherwise your crossing into disasterous territory

Wow. I definitely wouldn't follow that poor advice. Good temps do not make a high vcore any safer. There is a limit as to how many volts you should push through any given CPU. Even if your CPU is running fine now does not mean it is safe at all. Even at sub-zero temps too high of a vcore will shorten the lifespan of your CPU. You should always run as little of a vcore as possible to increase your CPU's lifespan.

With a venice/San Diego your max should be 1.6 w/ air, 1.65 w/ water and 1.7 w/ phase/cascade. Don't go any higher, but try to use as little as possible. If you only gain like 10MHz by rasing the vcore it is best to lower the vcore.

For temputares 55C should be around the max. I prefer to keep temps under 50C.

I definitely would not visit that forum again if that is the advice they gave you...

 

[blckgrffn]

Originally posted by: KoolDrew

anyways, i found some more help over at extremeoverclocking. they kind of said straight out that an AMD will handle whatever voltage you throw at it, so long as the temps stay under 60C, otherwise your crossing into disasterous territory

Wow. I definitely wouldn't follow that poor advice. Good temps do not make a high vcore any safer. There is a limit as to how many volts you should push through any given CPU. Even if your CPU is running fine now does not mean it is safe at all. Even at sub-zero temps too high of a vcore will shorten the lifespan of your CPU. You should always run as little of a vcore as possible to increase your CPU's lifespan.

With a venice/San Diego your max should be 1.6 w/ air, 1.65 w/ water and 1.7 w/ phase/cascade. Don't go any higher, but try to use as little as possible. If you only gain like 10MHz by rasing the vcore it is best to lower the vcore.

For temputares 55C should be around the max. I prefer to keep temps under 50C.

I definitely would not visit that forum again if that is the advice they gave you...

If voltage kills regardless of temp, why would different cooling give you a different max Vcore? Doesn't make sense to me, man!

Mr. Jeebus, what bios revision are you using? It is possible that I am seeing higher temps due to a different revsion? I believe mine is dated 7/28/05 or so... the E6 oc'd fine for me, much better than the winchester 3000+ and venice 3000+ and venice 3200+ that I tried My goal was 2.7, but according to Everest I am getting some substantial drooping on Vcore, about .05V... and I am up to 1.625 in the bios which is 11 hours 46 minutes prime stable I don't know whether it was the memory or the cpu that caused the error though, so I am leaving it as is until the 2*512 HyperX DDR500 that I got for $90 shows up. Not the best for an A64, I know, but the price was right and it should do okay for me.

 

[BigCoolJesus]

Originally posted by: blckgrffn

Originally posted by: KoolDrew

anyways, i found some more help over at extremeoverclocking. they kind of said straight out that an AMD will handle whatever voltage you throw at it, so long as the temps stay under 60C, otherwise your crossing into disasterous territory

Wow. I definitely wouldn't follow that poor advice. Good temps do not make a high vcore any safer. There is a limit as to how many volts you should push through any given CPU. Even if your CPU is running fine now does not mean it is safe at all. Even at sub-zero temps too high of a vcore will shorten the lifespan of your CPU. You should always run as little of a vcore as possible to increase your CPU's lifespan.

With a venice/San Diego your max should be 1.6 w/ air, 1.65 w/ water and 1.7 w/ phase/cascade. Don't go any higher, but try to use as little as possible. If you only gain like 10MHz by rasing the vcore it is best to lower the vcore.

For temputares 55C should be around the max. I prefer to keep temps under 50C.

I definitely would not visit that forum again if that is the advice they gave you...

If voltage kills regardless of temp, why would different cooling give you a different max Vcore? Doesn't make sense to me, man!

Mr. Jeebus, what bios revision are you using? It is possible that I am seeing higher temps due to a different revsion? I believe mine is dated 7/28/05 or so... the E6 oc'd fine for me, much better than the winchester 3000+ and venice 3000+ and venice 3200+ that I tried My goal was 2.7, but according to Everest I am getting some substantial drooping on Vcore, about .05V... and I am up to 1.625 in the bios which is 11 hours 46 minutes prime stable I don't know whether it was the memory or the cpu that caused the error though, so I am leaving it as is until the 2*512 HyperX DDR500 that I got for $90 shows up. Not the best for an A64, I know, but the price was right and it should do okay for me.

my BIOS is the same as yours (its 6/28/2005)

maybe your 3000+ is just running that much higher (going from 1.8GHz to 2.7GHz is a lot)


and yes, what the hell would cooling have to do with it

Good temps do not make a high vcore any safer

With a venice/San Diego your max should be 1.6 w/ air, 1.65 w/ water and 1.7 w/ phase/cascade.

You just showed yourself that you are either very confused, or dont know what your talking about..........


Either way, i see nothing wrong with 1.72 if im only getting 50C @ load....... i dont mind if my CPU life is shortened (like i said, i wont have this CPU for mroe then a year, so no big deal) and it wasnt fried when i applied the voltage, so thats out of the way

 

[nealh]

Originally posted by: KoolDrew

anyways, i found some more help over at extremeoverclocking. they kind of said straight out that an AMD will handle whatever voltage you throw at it, so long as the temps stay under 60C, otherwise your crossing into disasterous territory

Wow. I definitely wouldn't follow that poor advice. Good temps do not make a high vcore any safer. There is a limit as to how many volts you should push through any given CPU. Even if your CPU is running fine now does not mean it is safe at all. Even at sub-zero temps too high of a vcore will shorten the lifespan of your CPU. You should always run as little of a vcore as possible to increase your CPU's lifespan.

With a venice/San Diego your max should be 1.6 w/ air, 1.65 w/ water and 1.7 w/ phase/cascade. Don't go any higher, but try to use as little as possible. If you only gain like 10MHz by rasing the vcore it is best to lower the vcore.

For temputares 55C should be around the max. I prefer to keep temps under 50C.

I definitely would not visit that forum again if that is the advice they gave you...

While I do not disagree necessailry..you have strong words..what is your evidence

BTW there is a program yo ucan find at xtremesystems.com..that shows different newer A64 have a different max temp..some are 55-57-60C
all winnys report 65C..but the Venice chips are reporting primarily 55-57C....some as high as 63C
Listen most overclockers will dump the chip long before they kill it....

 

[BigCoolJesus]

Originally posted by: nealh

Originally posted by: KoolDrew

anyways, i found some more help over at extremeoverclocking. they kind of said straight out that an AMD will handle whatever voltage you throw at it, so long as the temps stay under 60C, otherwise your crossing into disasterous territory

Wow. I definitely wouldn't follow that poor advice. Good temps do not make a high vcore any safer. There is a limit as to how many volts you should push through any given CPU. Even if your CPU is running fine now does not mean it is safe at all. Even at sub-zero temps too high of a vcore will shorten the lifespan of your CPU. You should always run as little of a vcore as possible to increase your CPU's lifespan.

With a venice/San Diego your max should be 1.6 w/ air, 1.65 w/ water and 1.7 w/ phase/cascade. Don't go any higher, but try to use as little as possible. If you only gain like 10MHz by rasing the vcore it is best to lower the vcore.

For temputares 55C should be around the max. I prefer to keep temps under 50C.

I definitely would not visit that forum again if that is the advice they gave you...

While I do not disagree necessailry..you have strong words..what is your evidence

BTW there is a program yo ucan find at xtremesystems.com..that shows different newer A64 have a different max temp..some are 55-57-60C
all winnys report 65C..but the Venice chips are reporting primarily 55-57C....some as high as 63C
Listen most overclockers will dump the chip long before they kill it....

Yea, i used that temp, mine is rated at 55C, so im right under the max

and that is true, the only reason i even decided to overclock on this build was because i knew i would be upgrading my processor often......

 

[KoolDrew]

If voltage kills regardless of temp, why would different cooling give you a different max Vcore? Doesn't make sense to me, man!

Temps do matter to an extent, but when you start getting to high voltages, just because you have good temps does not mean it is safe. That is what I meant by that.