MMO-Champion Overclocking Leaderboards

[Twiistz]

IBT makes my cpu get to 81° while 72 on P95, so I'd say IBT.

Yeah, I seems to get about the same results. Gonna stick with IBT from now on

[Nebthet]

Name: GLaDoS
Processor: Intel Core i5 2500K
Clock: 4.6Ghz
Voltage: 1.290 in bios
Cooler: CM hyper 212+
Screenshot LINK: http://s7.directupload.net/images/110913/2njlvmc7.jpg
Valid CPU-Z link: http://valid.canardpc.com/show_oc.php?id=1996983

ps: HWMonitor reports a constant 3° lower on each core. Which one should I believe?

edit: I went 4.6Ghz without changing the voltage, somehow it managed to finish the IBT max stress level @ 1.254v.
I am no expert, is this a lucky chip or am I doing it wrong? Is it risky to run a 2500k this clock at such a low (imo) voltage?

[Sephiracle]

I keep hearing rumors that although IBT is great at testing heat, P95 seems to be a better job of finding stability. It's not risky to run it at a low voltage, it'll blue screen if there's not enough and then you'll have to up it. May just be a good chip, have to find out how far you can push it though before it hits it's 'ceiling'.

[Wries]

I keep hearing rumors that although IBT is great at testing heat, P95 seems to be a better job of finding stability.

My experience is the opposite. Well not the total opposite because IBT does heat up my chip more than P95.

But when testing several overclocks earlier on sandy bridge, I really could be running P95 for days with no problem, while 35 runs of IBT with AVX linpacks (depending on setting but: less than 10 minutes) would reveal instability.

[Cilraaz]

My experience is the opposite. Well not the total opposite because IBT does heat up my chip more than P95.

But when testing several overclocks earlier on sandy bridge, I really could be running P95 for days with no problem, while 35 runs of IBT with AVX linpacks (depending on setting but: less than 10 minutes) would reveal instability.

You've had the opposite experience that myself and a lot of others at OCN have had. For the vast bulk of people, Prime95 has found more instability (though sometimes 4-8 hours into stressing), while IBT w/ AVX only produced hotter temps. Personally, I was able to run 20 6GB+ tests in IBT and fail within 5 minutes of Priming.

[Xuvial]

Achieved a new stable OC at 4.8ghz after buying some new ram (Mushkin Blackline 1600mhz CL9 @ 1.5v).

Processor: i5 2500K
Clock: 4.8GHZ
Voltage: 1.392v @ load
Screenshot: http://i115.photobucket.com/albums/n...cho/proof2.jpg
CPU-Z: http://valid.canardpc.com/show_oc.php?id=1998272

[Cyanotical]

You've had the opposite experience that myself and a lot of others at OCN have had. For the vast bulk of people, Prime95 has found more instability (though sometimes 4-8 hours into stressing), while IBT w/ AVX only produced hotter temps. Personally, I was able to run 20 6GB+ tests in IBT and fail within 5 minutes of Priming.

^exactly why i don't like prime95
it would be interesting to find out what exactly intel and amd r&d use to find stability, as i doubt they use IBT or prime95

[Cilraaz]

^exactly why i don't like prime95
it would be interesting to find out what exactly intel and amd r&d use to find stability, as i doubt they use IBT or prime95

As I understand it, IBT w/ AVX extension is a variant of what Intel uses. My understanding could be wrong, though.

And what is exactly why you don't like Prime95? Because it finds instability? I considered my i5 2500k overclock stable when it survived a 12 hour P95 run and 30 6+GB IBT w/ AVX passes. IBT (even with AVX) just doesn't stress a Sandy Bridge setup as well as Prime95. It does generate the maximum amount of processor heat, though.

[Sephiracle]

Achieved a new stable OC at 4.8ghz after buying some new ram (Mushkin Blackline 1600mhz CL9 @ 1.5v).

Processor: i5 2500K
Clock: 4.8GHZ
Voltage: 1.392v @ load
Screenshot: http://i115.photobucket.com/albums/n...cho/proof2.jpg
CPU-Z: http://valid.canardpc.com/show_oc.php?id=1998272

nice wallpaper :P

I had the green version until I got my 1080p monitor ^_^

[Icpie]

Am I the only one with a 1055t? >.>

Processor: Phenom II 1055t
Clock: 4.13ghz
Voltage: 1.49v according to CPU-Z (1.53 in bios)
Cooler: Spire Thermax Eclipse II
Screenshot: http://i.imgur.com/oXx3U.png
CPU-Z: http://valid.canardpc.com/show_oc.php?id=1384482

[Slimjayrad]

Processor: Intel Core i5 2500K
Clock: 4.7Ghz
Voltage: 1.39
Cooler: Hyper 212+
Screenshot LINK: http://i.imgur.com/4RrEs.jpg
Valid CPU-Z link: http://valid.canardpc.com/show_oc.php?id=2001713


Volt SS from HWMonitor: http://i.imgur.com/A8a94.jpg

[Xuvial]

Processor: Intel Core i5 2500K
Clock: 4.7Ghz
Voltage: 1.39
Cooler: Hyper 212+
Screenshot LINK: http://i.imgur.com/4RrEs.jpg
Valid CPU-Z link: http://valid.canardpc.com/show_oc.php?id=2001713

Umm how is your CPU-Z showing 1.056v...?

[Slimjayrad]

Umm how is your CPU-Z showing 1.056v...?

Now that you mention it, wtf.

[Rixis]

ignore cpuz for volt, it's often wrong

[pansertjald]

Umm how is your CPU-Z showing 1.056v...?

because CPU-Z is having MAJOR problems with showing the right volt for Sandy bridge

im runing my 4,5Ghz oc with 1.337 (think i have a bad chip ) and some times it shows the right volt and some times it say`s im only runnig with 1.004v

[k0smo]

@Icpie - I have that same CPU & MOBO. I can't get anywhere near 4ghz

[Drunkenvalley]

Yeah, CPU voltage in CPU-Z is really weird. Mine shows around 1.04 to 1.06 volt... at 4.4GHz. So derp.

Additionally here's an odd issue... my computer is stable with auto-voltage, but set the voltage to what it says in BIOS that it's supposed to be? Not stable. Wtf.

[Saithes]

because CPU-Z is having MAJOR problems with showing the right volt for Sandy bridge

im runing my 4,5Ghz oc with 1.337 (think i have a bad chip ) and some times it shows the right volt and some times it say`s im only runnig with 1.004v

Update your CPU-Z.. Only older versions read 1v or so and it was because it read the VCCIO Voltage.

[pansertjald]

Update your CPU-Z.. Only older versions read 1v or so and it was because it read the VCCIO Voltage.

nope doesn`t work........ running V1,58 and there is still the volt bug

[Evildeffy]

nope doesn`t work........ Running v1,58 and there is still the volt bug

how much?!