Share your degradation reports on the 2500K/2600K

[[XC] Synthetickiller]

1.4v stable for 4.9ghz, basically everything on auto. Linx Stable, Prime 95 stable (I will not run 8 hours, just senseless to me for a non-benching PC), IBT stable.

The cpu is 1.392v on load.

I'm trying 1.41v (in bios), says 1.408v, still dips to 1.392 on load. Working on getting 5ghz stable.

I know all these chips are individual and require a fairly wide range of voltages for 4.8ghz+ stability, but what's the general concensus for running safe volts? Still anything around 1.4v or is 1.45v safe for 24/7 at this point?

[[XC] Synthetickiller]

1.4v stable for 4.9ghz, basically everything on auto. Linx Stable, Prime 95 stable (I will not run 8 hours, just senseless to me for a non-benching PC), IBT stable.

The cpu is 1.392v on load.

I'm trying 1.41v (in bios), says 1.408v, still dips to 1.392 on load. Working on getting 5ghz stable.

I know all these chips are individual and require a fairly wide range of voltages for 4.8ghz+ stability, but what's the general concensus for running safe volts? Still anything around 1.4v or is 1.45v safe for 24/7 at this point?

[BababooeyHTJ]

I didn't even run 1.45 on my 45nm cpus for 24/7.

[Ket]

Still no degrading on my 2500k, if anything its got a bit better (also helped by updated CPU microcode with new UEFI)

[l0ud_sil3nc3]

I run 1.4-1.43 all day under water and bench at 5520 with 1.55-1.575v and to this day the chip still clocks as it did when I received it, so no degradation here.

On my 920 I would run 1.44 for 4.5 with no problems as well.

[Skratch]

I gave my 2600k 2.3 volts by accident and its still doing 5ghz like it was.

I had everything maxxed out in the bios,like ultra llc,pll over volt ect.and in the voltage offset I did .600 instead of .060 and the board posted with wanring beeps and cpu temp at 98 on idle.

The chip is still working just like it was from day one and yeah I know Im a dumb ass,I litterally gave the chip the max the board can give out,even had the current to 130%

[vern]

2600K cold bug about ? temp

[ARandomOWL]

CPU: 2600K
Vcore(bios): 1.6
Vcore(DMM): Not measured
VTT: 1.2
vDIMM: 1.66
PLL: Stock (1.8?)
Mobo: P67a-UD4-B3

Comments:

Benched for 3 weeks at 5.25GHz 4c/8t. I was running aquamark at these setting and got a blue screen. Rebooted, no post. Reset bios. Now it won't post above 47 multiplier or get any further with windows OC.

[Ket]

Thats odd. Did you do a full CMOS clear and not just a hit of the clear CMOS button? I sometimes get odd stability problems when playing with OCs that a load setup defaults and simple push of the clear CMOS button won't fix, I'll have to do a full CMOS clearing to get things back to normal.

[Peter949]

All clocks where tested Prime95 8hr blend and small fft stable.

2500k
4.8ghz 1.36v original oc
4.8ghz 1.38v retested 3months later after a blue screen. 1.36v wouldn't do a 8hr Prime95 no more.
4.8ghz Now testing 6 months later won't do 48x100 1.4v. So currently testing 102x47.....

So degradation is pretty much a fact for these cpus. My old E8500@4.3ghz and Opteron165@3ghz never degraded even close to this fast.

[donmarkoni]

Are you saying that it degraded at 1.36V? Or you had benching sessions in between?

[Peter949]

No benching above 1.45v and that was only for a SuperPi 1Mil. Yes, it degraded in my opinion. I'm currently priming 4.6ghz now Makes me want to kill this cpu and get a new one.

[aznsniper911]

All clocks where tested Prime95 8hr blend and small fft stable.

2500k
4.8ghz 1.36v original oc
4.8ghz 1.38v retested 3months later after a blue screen. 1.36v wouldn't do a 8hr Prime95 no more.
4.8ghz Now testing 6 months later won't do 48x100 1.4v. So currently testing 102x47.....

So degradation is pretty much a fact for these cpus. My old E8500@4.3ghz and Opteron165@3ghz never degraded even close to this fast.

Hmm....I been running my 2600k at 100x50 (5ghz) with 1.5V for the past 4-5 months and still works like a charm. Makes me wonder if the luck of the batch is even more important then ever?

[BababooeyHTJ]

Hmm....I been running my 2600k at 100x50 (5ghz) with 1.5V for the past 4-5 months and still works like a charm. Makes me wonder if the luck of the batch is even more important then ever?

Yeah, there have been so few reports about Sandy bridge degradation that it makes me wonder just how much of an issue that this really is. This is nothing like we saw with clarksdale, thats for sure.

[PiLsY]

05-22-2011 06:15 PM 6 weeks at 5ghz 1.55v so far no issues. 2500k, have been running lots of blend tweaking memory (vccio 1.13, vdimm up to 1.7). Watercooled, maxing out at 70c prime 81c linx.

6 months on still going strong. Its actually got better (probably bios update but who knows). Im now running 5ghz 1.52vcore, 1.55vdimm, 0.925vccsa, 1.05vccio, 1.7vpll and 1.08vpch. Using 49x102 instead of 50x100.

[Demo]

Been feeding my CPU with 1.464v for 4.8Ghz since I last posted, so far so good.

[kcuestag]

I am currently at 4.8GHz with 1.375v on BIOS and PLL on AUTO.

I do Folding@Home about 20-22 hours a day, and I get max load temps of 71-75ºC-77ºC-72ºC on the hottest cores.

Do you guys think I am safe with those temperatures and that voltage? I am a bit scared of the temperatures to be honest.

[CrazyNutz]

Been running 4.5ghz @ 1.28vcore (rises up to 1.32v at times) rock solid for 7 months

[DumpALump]

For those who have degraded chips, I'm curious what your temps were? Were you running air/water and if so what temps at max load? From older processors usually higher voltage means you need lower temps. I know with my old 1.8ghz Northwood at 3ghz was fine on water. Switched to air cooling and after a month it experienced SNDS, figured because of higher temps.

Currently running my chip at 1.32v 4.5ghz. Mainly cause I wanted S3 sleep, but also cause I didn't want to degrade my chip. Currently on water with max temps something like 60C (on laptop at the moment). I'm seeing that lots of people run 5ghz and doesn't seem to be too many people with degraded chips. Either that or maybe cause people don't want to post about their mistake or problem.

[Demo]

Almost close to a year and no degradation on my end so far.

[QuadDamage]

Heh good ol' Falk and his fear mongering. You still into scare business after all these years? Damn bro it'll get you stomach ulcers. I seen you campaining for your silly cause over multiple forums.

I've been running my crappy 2600k for a few months now at 5Ghz and 1.51V / stock VCCIO/SA and 1.85V CPUPLL with PLL Overvoltage. No signs of degradation "boo hoo surprise surprise".

Never degraded a chip in my life whether on subzero cooling or air, and i can tell you i'm extremely unlucky when it comes to picking good chips. All my chips prolly hundreds of them, they all loved voltage.

I knew a guys who ran his QX9650 at 2.4V PLL for like six months and kept feeding it voltage as it was getting worse and worse. He thought it was his memory getting bad and took PLL for vdimm or something like that. Well, the chip couldn't do more than 3300Mhz no matter what i did. I could get it to post at 4.5Ghz easy but couldn't get past the windows logo at 3.31Ghz even.

[Falkentyne]

QD, flaming on these forums is NOT allowed.

[chubbyfatazn]

How long would it take for degradation to occur? Probably no set time, but just wondering if there is a general consensus...

I got my 2500k to 5GHz on Sunday with 1.44v, LinX stable. I went back down to 4.7 at 1.34v for a bit, re-cranked it up to 5GHz at 1.44v, and now it can't pass LinX. Same settings as the initial 5GHz successful OC (saved in BIOS profile). What's up with that?

[STEvil]

2600K @ 4.8 1.49v 4c 8t on air.. working like day 1 still so far, probably been up a month or so?

[st0ned]

2600k 5.0Ghz ( sometimes 1.37v without HT other 1.41v with HT ) stable since the release ( L042B076 old batch :p ) Rocking solid for over an year allready, 0 degradation. 3 Bench sensions allready ( 1 LN2 , 2 chilled water ) 1.55v 5.55Ghz ( max stabel for this CPU ) allways attainable.