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New OC, 2500k hit 5 ghz!

post #1 of 7
Thread Starter 
I got quite lucky, my chip reached 5 ghz yesterday at only 1.35 - 1.38 volts (fluctuates). I've been using it since, playing games, it seems perfectly stable in all applications I'd normally use it under.

It past Intel extreme tuning stress test for 1 hour, as well as prime 95 blend for 2 hours. I intend to run prime95 again overnight (at least 8 hours) but I feel confident it will pass.

I tried Intel burn test, at very high stress level, and it passed 8 of 10 runs, but on the 9th I got a BSOD. Burn test pushes the temperature far too high, so I won't run it again. Frankly I don't think it's quite necessary to push it quite that much. Each run took 60 seconds at 128 Gflops/sec speed. I increased the voltage by another 0.005 volts after the bsod, I think it would be stable even in the burn test now, but again.. the temperatures are reaching 80 celcius in it. Not worth pushing it that hard when I can do prime95 for a bit longer.

In any other benchmark, no core goes over 65 celcius. wink.gif

I'm using a Corsair AX860i for power, Asrock Extreme 3 gen 3 motherboard, a 2500k cpu of course, and a swiftech H220 for cooling (a beast).

http://valid.canardpc.com/2863587



I do have a quick question though, as per my understanding, increasing the voltage on my cpu will shorten the lifespan of it, even if the temperatures aren't very high. Is that correct? In stress tests (excluding the monster ibt) temperatures are quite mild.. even lower when I'm just gaming. They don't go above 55 in any game I've played so far. Idles at about 30-35 depending on ambient temperature. With the voltage between 1.35 and 1.38 at load, (but reduced to 1.0 at idle and 1.6 ghz freqency with offset voltage) will it shorten it by much?

Keep in mind I've already had this cpu for close to two years now. Although I've done no overclocking on it at all until I started about a week ago. I'm looking to have it last for another year or so at least, that would be ideal, are the odds pretty good it will make it that far?
post #2 of 7
You would get an even better overclock if you got rid of that crummy asrock board.
post #3 of 7
Quote:
Originally Posted by UnknownXV View Post

I tried Intel burn test, at very high stress level, and it passed 8 of 10 runs, but on the 9th I got a BSOD. Burn test pushes the temperature far too high, so I won't run it again. Frankly I don't think it's quite necessary to push it quite that much. Each run took 60 seconds at 128 Gflops/sec speed. I increased the voltage by another 0.005 volts after the bsod, I think it would be stable even in the burn test now, but again.. the temperatures are reaching 80 celcius in it. Not worth pushing it that hard when I can do prime95 for a bit longer.

In any other benchmark, no core goes over 65 celcius. wink.gif

I'm using a Corsair AX860i for power, Asrock Extreme 3 gen 3 motherboard, a 2500k cpu of course, and a swiftech H220 for cooling (a beast).

I do have a quick question though, as per my understanding, increasing the voltage on my cpu will shorten the lifespan of it, even if the temperatures aren't very high. Is that correct? In stress tests (excluding the monster ibt) temperatures are quite mild.. even lower when I'm just gaming. They don't go above 55 in any game I've played so far. Idles at about 30-35 depending on ambient temperature. With the voltage between 1.35 and 1.38 at load, (but reduced to 1.0 at idle and 1.6 ghz freqency with offset voltage) will it shorten it by much?

Keep in mind I've already had this cpu for close to two years now. Although I've done no overclocking on it at all until I started about a week ago. I'm looking to have it last for another year or so at least, that would be ideal, are the odds pretty good it will make it that far?

I would just run P95 for longer then 2 hours. I dont ever run IBT it just gets the CPU way to hot IMO. Voltage wise i think you ok, a lot of people on here run them harder then that. Its usually recommended to stay under 1.4v but since you got good cooling you should be ok

Are you using Offset & additional turbo voltage? If so what is your offset and turbo set at?

Quote:
Originally Posted by numero-uno View Post

You would get an even better overclock if you got rid of that crummy asrock board.

Right rolleyes.gif
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post #4 of 7
Thread Starter 
I'm not sure about the motherboard, it's not the best in the world, but I did get it 2 years ago. tongue.gif

I'm using offset voltage set to + 0.095 and turbo set to auto.
post #5 of 7
Ok you would have a much lower idle vcore if you set offset at +0.005 (or lower depending on idle stability) and then increase Additional turbo voltage to stabilize the full load vcore.
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post #6 of 7
Thread Starter 
Interesting, but how much does it already add now, on auto? I guess I'l lhave to test that out and see. I'm just afraid of somehow destabilizing my 5 ghz OC by messing with anything else. Irrational fear I'm sure.

At full idle doing nothing at all it barely goes above 1.0 volts. When watching a video or something light, it's only at 1.1 - 1.2 at the most. Shouldn't be too serious eh?
post #7 of 7
Turbo on auto is disabled or less then +0.004. Offset + turbo allows you to run a low idle and stable full load. For example i use a -0.010 offset and a +0.078 turbo which makes my CPU idle at 0.978 and have a full load of 1.336-1.344. An idle of 1.00v is not bad, i expected it to be higher with that high of offset

Another good thread to look at if haven't already
http://www.overclock.net/t/1198504/complete-overclocking-guide-sandy-bridge-ivy-bridge-asrock-edition/6770#post_20405792
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Alphacool NexXxoS 120mm ST30 Cooler Master Jetflo 120mm Fans Windows 10  LG 34UC88 
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Quickfire TK red switch Cooler Master V1000 MasterCase Pro 5 CM Storm Havoc 
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RAMHard DriveHard DriveOptical Drive
Gskill RipJaws X 16GB 1600mhz Seagate 2TB Seagate 320GB ASUS Burner 
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Cooler Master Eisberg 240L + 120mm Rad Koolance 3/8 x 1/2 Compression Fittings PrimoChill Advanced LRT Windows 7  
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Ubuntu 12.04 ASUS 24" Cooler Master Quickfire TK  Cooler Master V1000 
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CPUMotherboardGraphicsGraphics
I7 6700K @ 4.5ghz  Gigabyte Z170x Gaming 6 XFX R9 290x 8GB XFX R9 290x 8GB 
RAMHard DriveHard DriveCooling
Gskill RipJaws V 16GB 3000mhz Samsung 850 EVO 250GB Seagate Barracuda 2TB EK-Supremacy EVO CPU Water Block 
CoolingCoolingCoolingCooling
EK R9 290X GPU Waterblocks EK-XRES 140 Revo D5 PWM Pump Alphacool NexXxoS 360mm ST30 Alphacool NexXxoS 240mm ST30 
CoolingCoolingOSMonitor
Alphacool NexXxoS 120mm ST30 Cooler Master Jetflo 120mm Fans Windows 10  LG 34UC88 
KeyboardPowerCaseMouse
Quickfire TK red switch Cooler Master V1000 MasterCase Pro 5 CM Storm Havoc 
CPUMotherboardGraphicsGraphics
I5 2500K @ 4.6ghz  ASRock Z68 Extreme 3 Gen 3 ASUS 7870 Ghz Edition ASUS 7870 Ghz Edition 
RAMHard DriveHard DriveOptical Drive
Gskill RipJaws X 16GB 1600mhz Seagate 2TB Seagate 320GB ASUS Burner 
CoolingCoolingCoolingOS
Cooler Master Eisberg 240L + 120mm Rad Koolance 3/8 x 1/2 Compression Fittings PrimoChill Advanced LRT Windows 7  
OSMonitorKeyboardPower
Ubuntu 12.04 ASUS 24" Cooler Master Quickfire TK  Cooler Master V1000 
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i5-3210M  Intel HD Graphics 4000 Gskill 16GB 1600mhz  Crucial MX200 256GB 
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