max vcore for a64

**SvL** · 10-03-2005, 03:01 PM

what's the max vcore for daily use in A64 winchester?
1,57vc is dangerous?

**Ugly n Grey** · 10-03-2005, 03:24 PM

no, I try to keep it under 1.7 on air, some guys swear under 1.6 is far enough. I've never blown up an A64 actually, I may have to try....

**Daved+** · 10-03-2005, 03:38 PM

I've gave my old Venice 1,75v and it didn't blow up.

**Quest For Speed** · 10-03-2005, 03:44 PM

As long as you keep the temps reasonable 1.7 is not a problem.

**saratoga** · 10-03-2005, 04:35 PM

Originally Posted by Daved+

I've gave my old Venice 1,75v and it didn't blow up.

It won't blow up, but it will die sooner. Probably without phase something like:

1.6v == 5 years
1.7v == 2 years
1.8v == 3 months

(note these are completely made up, don't take them as based on anything)

Or some other sharply decreasing curve. IIRC the damage from high voltage to be accumulated.

**ben805** · 10-03-2005, 06:41 PM

for single core....I wouldn't mind pumping 1.65 and 1.70v max for 24/7

**Repoman** · 10-03-2005, 06:46 PM

Ran my X2 3800 at 1.9 for a couple minutes, until I realized that damn 136% special sitting there

No wonder temps were 60C idle

Think I may have killed my mem controller though, ballistix won't go over 257MHz divider or not. Though I'm also running yellow slots since orange don't work

**nn_step** · 10-03-2005, 07:19 PM

Originally Posted by saratoga

It won't blow up, but it will die sooner. Probably without phase something like:

1.6v == 5 years
1.7v == 2 years
1.8v == 3 months

(note these are completely made up, don't take them as based on anything)

Or some other sharply decreasing curve. IIRC the damage from high voltage to be accumulated.

Actually it is closer to

1.6V == 3Years
1.7V == 1 Year
1.8V == 3 months

I will never put my Vcore highier than 1.55v
and I have yet to see the need.. Hell I am running at 1.3v as we speak...

**Deus Falsus** · 10-03-2005, 08:11 PM

I wouldn't exceed 1.6v under Air especially on some SD's which tend to get hot.

**Primoz78** · 10-03-2005, 09:30 PM

Originally Posted by nn_step

Actually it is closer to

1.6V == 3Years
1.7V == 1 Year
1.8V == 3 months

I will never put my Vcore highier than 1.55v
and I have yet to see the need.. Hell I am running at 1.3v as we speak...

I think if temps are always under 50°C it could be as said saratoga...I have it under water and it never goes over 47°C...@ 1.64V...and nevem over 42°C @ 1.552V...

Regards,
Primoz

**Kasparz** · 10-03-2005, 09:52 PM

Theres mine
http://fotki.lv/fotki/all/4/371/3708...7337252700.jpg
Cooled with Artic cooling freezer 64.
24/7 my venice run 1.6V

**Major** · 10-03-2005, 09:55 PM

Originally Posted by nn_step

Actually it is closer to

1.6V == 3Years
1.7V == 1 Year
1.8V == 3 months

I will never put my Vcore highier than 1.55v
and I have yet to see the need.. Hell I am running at 1.3v as we speak...

I'm ok then cause I've never kept a cpu for more than 3 months !

**Perc** · 10-03-2005, 10:11 PM

i dont think 1.8v would kill a cpu in 3 months! im not sure it would kill it at all if you had good cooling. maybe on air 1.8v would do some dammage but even then it would be possible with good high end air to keep it alive. what we need is a crap ocing chip and do an experment. anyone wanting to kill a cpu in the name of science

peace perc,

**Batt[o]** · 10-03-2005, 10:33 PM

Wish is the limit for WC system? 1.8-1.9?

**Vapor** · 10-03-2005, 10:34 PM

1.75ish, IMO....

**MrSeanKon** · 10-04-2005, 01:42 AM

Originally Posted by Batt[o]

Wish is the limit for WC system? 1.8-1.9?

Xm it depends if you don't care for CPU (for example look my sign).

I know that I am a crazy guy.

But I don't suggest to everyone 1.8Volts for Venice I think 1.7Volts are enough for Venice watercooling.

SvL 1.57 Volts are not problem as Ugly n Grey said.
If you have good aircooling (copper heatsink and qualified fans) you can increase Vcore up to 1.6.

**toreide** · 10-04-2005, 01:52 AM

Originally Posted by nn_step

Actually it is closer to

1.6V == 3Years
1.7V == 1 Year
1.8V == 3 months

I will never put my Vcore highier than 1.55v
and I have yet to see the need.. Hell I am running at 1.3v as we speak...

What is your bases for this statement?

Just curious if you have scientific evidence, or if it's just something you believe.

**nn_step** · 10-04-2005, 03:20 PM

Originally Posted by toreide

What is your bases for this statement?

Just curious if you have scientific evidence, or if it's just something you believe.

my basis is no 90nm Chip I had at 1.8 Volts lasted more than a couple months at top OC and other 90nm chips at lower voltage lasted longer..

**Repoman** · 10-04-2005, 04:03 PM

Originally Posted by Perc

i dont think 1.8v would kill a cpu in 3 months! im not sure it would kill it at all if you had good cooling. maybe on air 1.8v would do some dammage but even then it would be possible with good high end air to keep it alive. what we need is a crap ocing chip and do an experment. anyone wanting to kill a cpu in the name of science

peace perc,

Heh, we could get like 30 members to donate $5 and get a 3000 venice to kill

**nn_step** · 10-04-2005, 04:49 PM

or you could just accept what I learned from a dozen dead winchesters...

**Repoman** · 10-04-2005, 07:09 PM

^Not talking about 1.8, running there will hardly increase your OC

I think more people (including me) are interested in 1.7..

**nn_step** · 10-04-2005, 07:14 PM

yet 1.6V is the sweet spot for Venice Overclocking...
Correct me If I am wrong here but a 20mHz increase isn't worth the half life of the chip... Unless you are going for the record...

**Perc** · 10-04-2005, 07:18 PM

Originally Posted by Repoman

Heh, we could get like 30 members to donate $5 and get a 3000 venice to kill

well if we do that lets use a winnie ive never had any luck with those pupys! burn winnie burn

peace perc,

**Nacho289** · 10-04-2005, 08:46 PM

For the name of science, this 2500+ sempron (90nm e6 rev) could find out how much voltage it can take.. (I am half curious, and half wanting new hardware)

**4rory** · 10-05-2005, 03:18 AM

I remeber reading some where that for a spec operating temp, device has "X" to live with "Y" volts, and ever 10c drop is a 50% increase in life expectancy, every +10c over operating temp spec is 50% reduction in parts life.

As for what volts are max I can't say might be 10% or 20% without dmg as long as temps are kept at or below spec perferably the latter.

I've seen old cpus still ticking, with 10+ years on them, remeber when a system fail (outside of our overclocking realm) it's rare it's the cpu so if we were to guess 10 years for new cpu's, and we run them much cooler then spec (like any good overclocker does) usually less than +60 on amd systems, then we can make a better guess.

So if were running more volts, but still under thermal spec, life should be okay, execpt the point at which the tiny micro wires that connect the core to the pins tears from overload, cuz the electrical load climbs fast when playing with the volts.

This threshold we don't know, for sure amd knows, but we can find out by testing a chip with high volts under max load for a few hours, I'd guess it to be around the 30% over vid mark. And remeber the more pins on the cpu, the thinner the wires have to probably be, and the lower the limit on the cpu vcore.

10 years, but run 10c lower then spec says, then 15 years, but we run more volts either within 10% or 20% whatever the overhead is, if it's 10% then we might have to take off 50% of life expectancy that puts us at around 7.5 years? By then the chip isn't good for anything. By that time the internet will out run the computer.

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