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The golden pot › RAINBOW NETWORKS › Tech & Support › colling, cpu & case
colling, cpu & case
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PopeJo
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PostPosted: Sun Nov 28, 2010 7:34 pm    Post subject: colling, cpu & case Reply with quote

Snoo volunteered to tell me how I should make my comp run at lower temperatures. so ... here is a gallery that didn't fit in irc ;P

Mr Snoolock, we have an open case


inside - anatomy of the victim


lower fan at the hdds (you can see the thick black noice-reduction mats on the ground)


cpu-fan, upper fan and power-unit (has internal fan)


left side - noise reduction mats had to be removed - cpu cooler too big


the noisy holes.. lower one could be filled by an extra fan ...


rear + left view (air out)


front + left view (air in, below the front cover)


my internets with ugly windows (needed for the damn webcam to make photos ...)





--------[ Sensoren (Idle Temp)]----------------------------------------------------------------------------------------------------

Sensor Eigenschaften:
Sensortyp ITE IT8720F + Winbond W83791D (ISA 290h, SMB 2Ch)
GPU Sensortyp Diode (ATI-Diode)
Motherboard Name Asus Crosshair II Formula
Gehäusezutritt gefunden Nein

Temperaturen:
Motherboard 35 °C (95 °F)
CPU 30 °C (86 °F)
1. CPU / 1. Kern 33 °C (91 °F)
1. CPU / 2. Kern 32 °C (90 °F)
MCP 60 °C (140 °F)
GPU Diode (DispIO) 43 °C (109 °F)
GPU Diode (MemIO) 46 °C (115 °F)
GPU Diode (Shader) 43 °C (109 °F)
Seagate ST31000340AS 38 °C (100 °F)
WDC WD20EARS-00MVWB0 31 °C (88 °F)

Kühllüfter:
CPU 1418 RPM
Grafikprozessor (GPU) 1445 RPM (35%)

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SnooSnoo
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PostPosted: Mon Nov 29, 2010 5:06 pm    Post subject: Re: colling, cpu & case Reply with quote

Like I said before, the cpu fan is spinning way too fast. Make sure its connected to the right fan header on the mobo. And make sure QnC is enabled.

Tip of the day: Reverse the exhaust fan at the back of the case and the cpu fan. This way the cpu will get fresh air from the outside and not the recycled warm air of the case. You could now reverse the lower intake fan, but for now, just try that. (you might want dust filters on intake fans) Also, having a positive pressure in the case (provided intake fans have dust filters) will result in less dust in the case. Ofc you achive that by having more air being sucked into the case.

Otherwise, the case doesent allow for much cable management wich would allow the air to run around your components easyer.



Best bet to make the rig less noisy is replacing noisy fans with quiet ones and/or a manual front panel fan controller like we discussed earlier.

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PopeJo
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PostPosted: Mon Nov 29, 2010 9:47 pm    Post subject: Re: colling, cpu & case Reply with quote

alright Snoo, thx for the hints. I'll try that later on. =D

for now I wanted to know what heavly load would do, so I overclocked my CPU as far as I could:


CPUID CPU Name AMD Athlon(tm) 64 X2 Dual Core Processor 5200+
CPU Takt 3015.0 MHz (Original: 2700 MHz, overclock: 12%) :hoho:

downscaling still works fine.

idle Temperatures are around 30°C
heavy load results in CPU-temperatures of ~50°C :

Temperaturen
Motherboard 37 °C (99 °F)
CPU 51 °C (124 °F)
1. CPU / 1. Kern 53 °C (127 °F)
1. CPU / 2. Kern 48 °C (118 °F)
MCP 63 °C (145 °F)
GPU Diode (DispIO) 46 °C (115 °F)
GPU Diode (MemIO) 48 °C (118 °F)
GPU Diode (Shader) 45 °C (113 °F)
Seagate ST31000340AS 38 °C (100 °F)
WDC WD20EARS-00MVWB0 33 °C (91 °F)

Kühllüfter
CPU 1412 RPM
Grafikprozessor (GPU) 1441 RPM (35%)

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SnooSnoo
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PostPosted: Tue Nov 30, 2010 2:55 pm    Post subject: Re: colling, cpu & case Reply with quote

If you got a windows partition, you could load the cpu for stress testing with prime95 and OCCT.

Those will stress your CPU beyond what normal and even heavy home workloads can. They are also suited for stability tests. 24hrs of prime without a hich usualy mean your OC is stable. Keeping and AMD cpu under 60°C is optimal. Seems you still got some headroom there :).

Oh, and heres the ultimate AMD overclocking guide.

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jackthompson
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PostPosted: Tue Nov 30, 2010 5:15 pm    Post subject: Re: colling, cpu & case Reply with quote

shit... my dev server needs a new 60mm cpu fan... but i am too lazy which is why it shuts down now and then... :<

and as much as i know me i rather move everything to some random vps and let that machine rott...
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SnooSnoo
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PostPosted: Tue Nov 30, 2010 7:14 pm    Post subject: Re: colling, cpu & case Reply with quote

What a waste of resources. You lazy ol sunnova :)

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Joki
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PostPosted: Tue Nov 30, 2010 8:35 pm    Post subject: Re: colling, cpu & case Reply with quote

PopeJo wrote:


my internets with ugly windows (needed for the damn webcam to make photos ...)



d00d, thats yer problem right there! whats u think will heppen, if u show pix of yer compoter, showing an image of itselfz on the webs???!? thats right, ur compoter will have to draw it INFINITE times inside that image: load a image of compoter, showing the compoter, showing the compoter..... (like 2 mirrors seeing each other)!
OF curz this causes INFINITE CPU USUAGE, STOOPID!!!

<youtubecommentresponse>

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kernel_panic
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PostPosted: Sun Dec 05, 2010 6:54 pm    Post subject: Re: colling, cpu & case Reply with quote

Can desktop CPUs be undervolted?

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PostPosted: Mon Dec 06, 2010 9:59 am    Post subject: Re: colling, cpu & case Reply with quote

Can amiga games be overplayed?
recordedamigagames.ath.cx/ruff/

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PostPosted: Mon Dec 06, 2010 10:05 am    Post subject: Re: colling, cpu & case Reply with quote

kernel_panic wrote:
Can desktop CPUs be undervolted?

Jes. :P

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PostPosted: Mon Dec 06, 2010 1:06 pm    Post subject: Re: colling, cpu & case Reply with quote

SnooSnoo wrote:
kernel_panic wrote:
Can desktop CPUs be undervolted?

Jes. :P

Well, then that's what that guy asking for advice should do.

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PostPosted: Mon Dec 06, 2010 2:18 pm    Post subject: Re: colling, cpu & case Reply with quote

kernel_panic wrote:
SnooSnoo wrote:
kernel_panic wrote:
Can desktop CPUs be undervolted?

Jes. :P

Well, then that's what that guy asking for advice should do.

to the guy asking the other guy questions about a third guys advice-question:
my MoBo is overvolted, and is supposed to overvolt. it was designed for overclockers (not yet a political movement, or music-scene, but the name could easily start one) so you can pump more energy in the devices via tho MoBo, if you want to speed things up.
more voltzszsztz make more heatzsztszts, thou :(

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PostPosted: Mon Dec 06, 2010 3:33 pm    Post subject: Re: colling, cpu & case Reply with quote

Snoo, tell that guy that he should think out of the box. That even overh4XXors have a place in my heart--and that they must comply with the laws of physics too. If they absolutely must overclock their CPUs I expect them to do so by using the smallest voltage at which they can browse p0rn and play WoW in a stable way.

And MPrime is the Linux equivalent of Prime95.

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PostPosted: Tue Dec 07, 2010 10:17 am    Post subject: Re: colling, cpu & case Reply with quote

Pope, get the components out of the case and put them out into the cold of the German winter. Thats outside of the box, isent it?

Jose, while your logic of trying to get the most OC without raising or even lowering voltages is sound, you can only achieve that much by doing so. Ususaly, for better results, you need to raise voltages on cpu/nb/sb/ram. Wich in turn needs more hot air to be swapped for colder air (even with water cooling).

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PostPosted: Tue Dec 07, 2010 12:34 pm    Post subject: Re: colling, cpu & case Reply with quote

Yes, I'm not familiar with desktop computers, so I don't know how much of an effect undervolting has on those, neither how much you can push things when you are overclocking. Still, I would look into it. Even if you can't lower the voltage for the highest frequency, you may be able to do so for the lower ones (there's much more headroom at lower frequencies before things get unstable). This would not give you a quieter system under heavy load, but it would get cooler quicker when back to idle. Remember that it's the square of the voltage what the power drained depends on, so even small tweaks are noticeable.

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