how long have you had your amd over 2volts?

[12am]

I'm just asking a question to gain some backround info before I up my vcore.

I've noticed alot of the higher 1800mhz+ overclocks require more than 2v, now I'm wondering; how long have you had your cpu running at over 2v, and also have you noticed any damage to the cpu in that time frame? also could I expect 1 year of use with a cpu that is running at 2v+, if temps are withing safe ranges?

[plague]

i dont think youll have problems if you keep your temps way down. I personally wouldnt run vcore that high without a pelt, but thats just me. as you pump more voltage into your chip and overclock it higher, the max temp you should ever let it get to lowers. A stock chip will run fine at 65C+ whereas a highly overvolted chip will probably start flaking out at 45-50. Also if youre going to do it i would suggest getting a digidoc or even just a compunurse (unless youre board reads the diode in the core). I would NEVER trust an in socket thermistor reading when pumping that much voltage to your cpu. i dont even trust it now, though.

[12am]

Well I just ordered a Thermalright SLK-800 Heatsink and a 84cfm Vantec Tornado fan, with my current Sk-6@1.85v (I tried just to get a feel of the temps) I'm only getting 40c load temps so I'm thinking that when my SLK800 arrives it will give me plenty of headroom for 2.0-2.2v what do you guys think?

[{PMS}fishy]

I think anything over 1.9v is way too much for even the best aircoolers. If your room temps rise 3c then see ya bye bye, chips cooked. Its too much voltage to be playing with air.

[Default]

i ran my duron 700 on OEM AMD cooler @1125 with 2.5 vcore for 4 months before the motherboard died on me ;) (not dew to volt mod)

[{PMS}fishy]

Originally posted by Default
i ran my duron 700 on OEM AMD cooler @1125 with 2.5 vcore for 4 months before the motherboard died on me ;) (not dew to volt mod)

An older duron is much different than an XP

[Default]

just putting it up to show it off :D gota love the duron 700's true gods of overclocking

[12am]

so you would say 1.9 is a safe limit?

[Mr. Chambers]

i would definately hold off on the 2.0+ vcore till you get pelt or some other non-air cooling.. i dont care what HSF you have, thats just plain too much heat to try and take care of.. also, why do you NEED that much voltage? have you actually TRIED to OC as high as you need and it flakes out on you? and no, i dont think it'd be dangerous, as long as the temps are within reason, which would be difficult with air.. my .02

[12am]

Mr.Chambers;

Actually I don't think cooling is going to be that big of a problem, here's my reasons why;
1)currently testing out 1757mhz@1.85v on a thermalright sk-6w/50cfm delta I'm getting load temps of 40c (seeing as asus a7v333 reads off the xp's internal diode it is about 10c higher than peoples readings with mobo's featuring in socket thermistors meaning to them I'm in the 30c range
2)my a/c can cool my room down to a chilly 15c but I keep it at 19c for comfort reasons (19c ambient gives me load temps of 40c)3)My SLK-800w/84cfm tornado fan that's coming within the week should drop my temps at least 5c (from the reviews I've read) giving me load temps of 35c(xp diode) or effectively 25-27c(in socket thermistor) so if I'm correct those temps put me in the watercooling range do they not?

I'm looking to push that much voltage because I can't get the cpu up over 1757mhz@1.85v, I'm trying to at least hit 1800 and I'm hoping that the push to 2v will help me out like it has for others.

[rogerdugans]

I only broke down and did the vcore mods fairly recently (on 3 8KHA+s) and have mixed results to report:

on the water cooled rig it does help, when ambient is low enough for cpu temp to stay down low- I have run stable @ 1782 during the cooler parts of the night.

with the air cooled rigs: makes a slight difference: I have gained nothing from any voltage past 1.95v, and dropped back down to 1.9v to keep things in a stable heat range.

1 Warning though: AMD chips are very sensitive to heat, as we ALL know! When you run increased voltage through the core it becomes even more so.
I was changing fans on one of mine a few weeks ago and slightly misaligned the hs so I only had partial contact. At 2v the cpu was toast in a second.

That said, I am looking forward to cooler temp so I can crank the voltage up some more:D

[12am]

thanks for this info rodger just the kinda stuff I was lookin for.

[nikhsub1]

Heat kills, not voltage, period. Keep temps reasonable, (under 65C with on die reading) and you are fine.

[SLO_N8]

I run at 2.2vcore almost daily now for the past month. AX-7/Tornado combo....before the tornado i had a 48cfm fan and ran 2.0vcore no problems :) Load temps never over 60c w/ either setup.

[Maximus Nickus]

With air you can run 2V fine, but beware you will need outrageous cooling (= noise:rolleyes: ).

Be warned, I would use Water for anything higher than 2V, 2.2V being the 'safe' maximum.
Just remember the Thermal Sensitivity of CPU's goes down with more voltage.

Good Luck,
M_N

[12am]

to the last 4 or 5 posters; that info you gave me was great, it answered all my questions!

[SLO_N8]

Note, my temps are read from the internal diode :)

I don't think you'll want to see 60c temps from an external thermistor..... ;)

[12am]

SLO;
My temps come from the internal diode aswell!

[SLO_N8]

Excellent.....well I tested once if my CPU was stable at 75c off the internal diode and it took everything I could throw at it....w/ a load temp of 75c, hehe. I don't think I'd want to run that hot all the time tho ;)

[12am]

personally I think 60c is the limit for temps, before my a/c arrived and I got load temps over 60c I got nervous, even though most say it's safe, I think 60c is just a little to high! haha not to mention 75! :)

[demon-eater]

I miss mounted my waterblock and was getting 70C from the on die sensor it ran prime okay until it hit 85C then it crashed

im still currently burning in my chip but i think that did alot of the work for me in those few minutes..

lol

[Emericana]

it is not safe at all to run air cooling over 1.95v. unless you have your room at very very cold temps then it is not safe to go over that voltage.

just go and get water or TEC cooling if you want those voltages

[12am]

My room temps are very cold, I work in the meat department of my local supermarket, and my room feels as cold as the meat cooler there, I'm steadfast to prove (once the new hs/fan comes in) that 2v is well within the reach of extreme air cooling

[Emericana]

hmmm... if you wanna do extreme aircooling then arent you better getting a AX7 and a 190CFM 120mm Delta using a adapter ? just a thought

[12am]

I think my Thermalright SLK-800w/84cfm tornado fan will sufice, also I have a 120mm intake fan over the cpu, which I plan to run a duct from my a/c to that 120mm intake fan for an even bigger temp drop, I shouldn't loose much air power since my a/c unit is only 2 feet away.

[rogerdugans]

2v vcore is definitely within the reach of extreme air: my air-cooled XP1700 was at 2.1v for a few days while I tried to get it to 1.8ghz.

$20 copper fin heatsink and 8000rpm Delta. Room temp of 31c and it never went over 46c cpu load temp.

I did bring the voltages down to 1.9v afterwards because they didn't gain me anything: 5v rail is limiting that rig to 1731mhz right now......

[12am]

if my 5v rail is only reading 4.75v under load could my psu be hindering my overclock?

[rogerdugans]

You betcha.

System's vary widely: temps, how hot they can run and be stable, how high the FSB and cpu can go... and how severely a low 5v rail will impact the rig. I have heard of people running at 4.5v (reliable people, trust me.) but I haven't seen anything of mine stable below 4.78v, BOTTOM.

My 5v "challenged" rig runs at 4.84v usually- I have seen drops to 4.78v that it recovers from, but when I was trying to run the cpu harder I believe it was dropping even lower.
Crash time.

Your pc may be 100% stable at 4.75v, but if you download a file, and use the cd, and run something else, etc....it may be dropping voltage JUST enough to crash.

Time for Hoot's 5v Mod, or a new psu! Check out the mod though: some pointers in there that don't require soldering, and clips that do the mod without soldering on your mobo- pretty sweet!

[12am]

ahh I think I'll just opt for a more powerfull psu seeing as mine is only a 300 watt with a single fan, I want to get the Enermax 431watt dual fan psu, whatcha all think of that psu?

[rogerdugans]

Originally posted by 12am
ahh I think I'll just opt for a more powerfull psu seeing as mine is only a 300 watt with a single fan, I want to get the Enermax 431watt dual fan psu, whatcha all think of that psu?

I have one in my H2O rig. pretty nice, but I did the mod in that rig too: vcore volt mods pull some extra juice, and I want 1.8ghz!

I DO use the vcore mod on that one: I can hit 1710 stable with 1.85v, but to get up to 1782 (highest STABLE so far:mad: ) I'm almost topped out even with the vcore mod. And Hoot's mod helps keep my 5v stable near 4.9.

[12am]

I'm stable at 1757mhz 1.85v gonna push 1850mhz@2.0 vcore when my SLK-800 Arrives!

[rogerdugans]

A word of caution with overvolted boards:

Be VERY careful putting the hsf on!

I was changing fans on my 1600 a few weeks ago, and had an edge resting on the socket without realizing it.
At 2.0 volts.

CPU was toast in less than a second.

When I pulled it off I could see that I was in PARTIAL contact with the core, but not enough.

Overvolted chips will burn FAST.

[12am]

fortuneately my board features cpu overheating protection, it saved my a$$ last time I put the heatsink on wrong!, this time Im going to be extra cautious!

[Maximus Nickus]

When applying a HSF restore factory settings, it will avoid any problems;) to do with overvolting. (well almost!)

M_N

[HaywirE]

Maximus, did you ever get your PC Running?

Heh, lets discuss, i may be able to give you a 1600 For your watercooling products.

Private message me, and we can discuss this further.