Technical > Overclocking / Modding > [OC] More tweaks for my OC?

[OC] More tweaks for my OC?

104 Celsius? If so, ouch! What cooling are you using?
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KI6RIT

Where are you seeing 104C? I see 104.70 MHz BCLK. I dobn't see temps...

Look near the end of his post.
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KI6RIT

reply to Nick
I didn't grab the screenshot for it but I hit 104 when I run Prime95.

reply to n_w95482

reply to Nick
What CPU cooler are you running?

reply to Nick
If it hit 104 C during Prime95, that's definitely bad. I bet running Linpack on it would get it well above 110 C, and/or kill it. Definitely back off of the overclock and voltage a bit until that gets sorted.
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KI6RIT

yeah I had to tone it down a bit because I had system crashes after a while.

I am using an Asus p8z77-v le with a corsair h55 watercooler

I have virtu enabled which may limit me a bit and the video card is an Asus 660ti oc
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-Stupidity, like hydrogen, is one of the basic building blocks of the Universe.
-Insanity: doing the same thing over and over again and expecting different results.

Misc

What fans are you using on the cooler? You will get better performance if you use quality fans like the Noctuas, Yate Loons, or Bitfenixes in a push-pull configuration.
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Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety.

reply to Nick
My case and heatsink are Corsair, so whatever Corsair supplies as their fans.

Were all of the cores close to each other in temperature, or was the hot one way off?

Edit: If you really want to push that chip, try removing the heatspreader. Depending on how badly the thermal material between the heatspreader and CPU is making contact/conducting heat, this may help you quite a bit. You'll probably need to use a shim as well so the CPU sits properly in the socket. I did it once with an Opteron 165 and it didn't help very much (it apparently had good contact already).
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KI6RIT

reply to Nick

Power supply is a SeaSonic SS-660XP

reply to Nick
Are you overclocking via software utility or the BIOS/UEFI? You will get a more stable overclock if you are doing it via BIOS.

That said, 4.5 GHz is an incredibly good OC on an Ivy Bridge chip, and one you should be happy with.

At this point, you need to either dial it back or bring the temps down. I suggest either upgrading to a push-pull fan config (with good fans--as I said, Noctua, Yate Loon, or Bitfenix), upgrade to a better CPU cooler (the H55 is kinda meh, go for the H100 or a full custom water loop), or hack the heat spreader to get rid of the concave gap, as n_w95482 mentioned.
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Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety.

reply to Nick
You might find this review helpful.

quote:

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The P8Z77-V LE Plus is obviously not aimed at the extreme overclocker. However, though it isn’t the board that should be your first choice for a DICE run doesn’t mean it won’t give you a respectable OC. The V LE Plus had no problem maintaining stability at 4.6GHz using exactly the same settings we have used with this chip on the V Pro and Sabertooth. On click TPU gave us a 4.2GHz clock, and the board ran nearly as cool as stock settings. While not recommended for extremes, the P8Z77-V LE Plus has no problem achieving excellent results with mainstream methods.

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reply to Nick
I was overclocking with the BIOS
That board is the Plus version but has a lot of similarities. I was indeed able to get it to 4.2 with the one click option.

reply to Nick
4.5Ghz on the i5-3750k doesn't need that much voltage. Well... thats if you run it like this:
Multiplier: 45
Bus Speed: 100Mhz
CPU Voltage: 1.3volt (some people have it work on 1.25v and 1.28v)
Set back your ram to 2400Mhz with 1.65v.

With Noctua NH-D14 CPU Cooler cpu temp using Intel Burn in test, Real temp say max is 72c.

This guy is on i5 3570k 4.5Ghz 79c, but running at 1.325 volt. »[Cooling] core I5 3570k safe temp
.005 volt more and have 104c.... I am also thinking maybe re-seat the heatsink? 25c increase for just .005 volt doesn't make sense.

Give it a try. I hope it works for you.

reply to Nick
A couple of things:

1) You never want your chip over 90c. Period. It's MAX THERMAL SPEC is 95c. You will destroy the chip.
2) You need to turn down the voltage on the RAM. Intel has said that 1.65v WILL kill the memory controller over time. 1.8v is just asking for it. You will destroy the chip
3) Do not touch BCLK. You can cause bus frequencies and the like to go out of wack. Only touch the multiplier. As it is set now, you will kill the chip.
4) The voltage of the chip is also way above spec. 1.4v will cause high temps which will kill the chip.

All that boils down to is back off and don't do anything crazy like you are currently.