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Old 07-31-11, 05:28 PM   #13
FastRedPonyCar
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Default Re: New case and liquid cooling on the way

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Originally Posted by Roadhog View Post
Uh, no. With my CPU just under water, similar setup to yours, It would barely touch 60c load on a hot day. I noticed you lapped your cpu, have you checked how the thermal paste contact is?
yeah it's a perfect spread. With the thermalrite cooler, you could set it down on top of the cpu with no paste and it would stick to it just from the vacuum.

When I first setup the machine back in the day, I initially thought it was hot but after reading more reviews of coolers that used the 920, they were all reading that hot.

Worth noting I think is that 24 hours of prime 95 will only get core 1 (which seems to get the hottest first) up to about 80*C.

I have no idea why but when I encode an mpeg2 video into mp4 using ripbot264, it absolutely hammers all the cores without stopping and even though prime95 does the same, for some reason, ripbot and other video encoding (like BDrebuilder) will produce significantly hotter core temps so... ??

Honestly I'm not that worried about it because if something were going to have failed, it would have done by now I assume. I can be doing other things with the machine while it's doing that and it doesn't show any signs of instability or anything out of the ordinary.
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Old 07-31-11, 06:45 PM   #14
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Default Re: New case and liquid cooling on the way

mmkay lol. I've just never heard of an i7 920 getting that hot from just being at 4ghz unless you are pumping 1.6v into it. Even my cpu which is near identical to an i7 920 doesn't even get remotely near that hot.
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Old 07-31-11, 07:16 PM   #15
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Default Re: New case and liquid cooling on the way

80c good grief that's hot.
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Old 07-31-11, 08:48 PM   #16
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Default Re: New case and liquid cooling on the way

i think mine topped out between 60 and 70 @ 3.6........
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Old 08-01-11, 01:09 PM   #17
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Default Re: New case and liquid cooling on the way

Eh, I'll double check the contact between the block and the cpu when I get home.

I've also read that the bios itself could be sending a bunk reading to the system. I'd like to think that after nearly 3 years of running like this, that it's not ACTUALLY that hot and that something else is going on.

who knows... it's never given me one hint of trouble or instability.
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Old 08-02-11, 05:35 PM   #18
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Default Re: New case and liquid cooling on the way

that is kinda hot imo, my hexacore doesn't even get that hot on air.
how much vcore are you running? my 920 ran sorta hot, but still not high 90's (on air) and I was running it at 4.2 with i think 1.4vcore.
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Old 09-04-11, 10:19 AM   #19
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Default Re: New case and liquid cooling on the way

No idea what vcore I was using. I've since backed it down to stock voltage and set the BCLK down a bit to 170 to yield an operating speed of 3.4 ghz.

I ran crysis and witcher 2 as well as encoded an HD video and noticed zero difference in the frame rates of the games and a negligible increase in video rendering time. So I'm just going to leave it there.

At the moment, idle temps are around 45~50*C and 70*C~ish under full load. I see no point in running it any faster as it seems that it does require bumping up the memory and CPU voltage for it to operate with stability @ 4ghz and the obvious side effect of all that is substantially higher temps. While after over 2 and a half years running at those higher temps, everything is still running perfectly, it's now obvious that there's no real performance benefit of running faster and at higher temps.
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Old 09-04-11, 11:26 AM   #20
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Default Re: New case and liquid cooling on the way

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Originally Posted by FastRedPonyCar View Post
No idea what vcore I was using. I've since backed it down to stock voltage and set the BCLK down a bit to 170 to yield an operating speed of 3.4 ghz.

I ran crysis and witcher 2 as well as encoded an HD video and noticed zero difference in the frame rates of the games and a negligible increase in video rendering time. So I'm just going to leave it there.

At the moment, idle temps are around 45~50*C and 70*C~ish under full load. I see no point in running it any faster as it seems that it does require bumping up the memory and CPU voltage for it to operate with stability @ 4ghz and the obvious side effect of all that is substantially higher temps. While after over 2 and a half years running at those higher temps, everything is still running perfectly, it's now obvious that there's no real performance benefit of running faster and at higher temps.

You really need to change the orientation of the fans cooling the radiator so that fresh air from the outside of the case is used to cool the radiator and that change alone will drop temperatures between 5~10*C on it's own.....As they are now, you're using already warm air that's inside the case to cool the water loop, wich isn't the best solution for low temperatures...
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Old 09-04-11, 12:04 PM   #21
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Default Re: New case and liquid cooling on the way

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As they are now, you're using already warm air that's inside the case to cool the water loop, wich isn't the best solution for low temperatures...
Just like stacked radiators.
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Old 09-04-11, 01:37 PM   #22
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Default Re: New case and liquid cooling on the way

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Just like stacked radiators.

And they work fine, with the GPU's never exceeding 65*C at 975Mhz GPU clocks on all 3 cards under max load , using a modified bios with much higher voltage settings to begin with...It's been like that for 5 months now


Always forgetting the end result aren't we...
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