Case Cooling Questions Concerns

[mgm1]

Hi, I own a ZTSystems PC:
ZT Sysytems 7391Mi
Intel i7 Processor 870 (2.93GHz)
8GB DDR3RAM
sataII 1.5TB HDD
sapphire ATI radeon HD 5670 1GB DDR5
350watt (400watts peak) Delta PSU
Windows 7 64bit Home Edition.
foot print is a fulltower case with a ATX PSU
specs from PSU
voltage current frequency
115/230 10a/5a 50-60mhz
+3.3 +5 12v1 12v2
18a 25a 16a 2.5
139 watts max 18a max
Ventilation: rear od case 3" exhaust fan in PSU
directly below PSU is another 3" exhaust fan
left side of case is ventilated for air intake funnel inside case that covers large fan on top of i7 2.93 quad CPU
*************************************
Most stressful software i run is Real FLight G5 flight simulator

Recently I installed a Sapphire ATI Radeon HD 5670 1GB DDR5 DVI/HDMI video adapter and today i installed accompanying software, Catalyst.
Catalyst contains an overclocking utility which include GPU utilization, temperture and fan GPU fan speed.

When I compare the GPU temperature on my PC to results posted on Tom's hardware I'm concerned.

Catalyst reports, at idle, the GPU temperature is 40-43C and under load, running Real Flight, GPU temperature is up to 63C. at idle GPU fan speed is "0" even the GPU temperature is 40-43C.
Under load GPU fan utilization could be almost 100 percent.

tomshardware reports this card's temperature is 15.2C at idle and 46.2C under load.
http://www.tomshardware.com/reviews/radeon-hd-5670,2533-17.html

What could be causing these high temperatures? Are they dangerous?
Could the PSU, stressed, generating additional heat?

Catalyst utility has an option "unlock" that'll allow me increase increase fan time.
if the temperatures I posted ar too hot.

What can i do to lower interior temperature?

 

[mgm1]

post removed 8/14/10 after realizing i posted reply to the wrong thread.

 

[theAnimal]

tomshardware reports this card's temperature is 15.2C at idle and 46.2C under load.

Actually they are reporting the delta versus ambient. In order to get 15.2C you would need to be in a very cold room.

 

[mgm1]

removed duplicate post. last nite I was having browser problems.

 

[mgm1]

I googled delta temperature but couldn't find a meaning. Are you writing Tomshardware temperature are some how different real world use?

Are the temperatures i posted unusually hot?

 

[ehume]

You haven't told us what kind of case you have. If it's an old one, perhaps link to a picture.

If you use your psu fan for case ventilation you are feeding warm air to something you want cool.

You have spent a lot of money on a top-of-the-line psu. Now it's probably time to get a modern case, with the psu on the bottom where it gets an independent source of fresh air.

Three inch fans don't cut it anymore.

Measure the temps in your computer room. That is your ambient temp. Subtract that from the temps you are getting and you will have something you can compare to reviews.

 

[jvroig]

I googled delta temperature but couldn't find a meaning. Are you writing Tomshardware temperature are some how different real world use?

By delta, he meant "change from" the ambient.

So when Toms reported 15.2C delta at idle, that means if the ambient is 25C, then the card actually idled at 40.2C.

Since the ambient temps will vary from one place to another, just reporting the absolute idle and load temps will not be helpful at all. So instead, the ambients are stated and the deltas are reported. This way, knowing your own ambient temps, you can ascertain how hot the card can get with a reasonable degree of certainty.

Catalyst reports, at idle, the GPU temperature is 40-43C and under load, running Real Flight, GPU temperature is up to 63C. at idle GPU fan speed is "0" even the GPU temperature is 40-43C.

Your temps are fine. 43C idle and 63C load is very cool for a video card. You just misunderstood the temp readings from Tom's. You have nothing to worry about.

 

[mgm1]

sorry
_________________________
small/mid sized tower case
Dimensions: (HxWxD): 13.9" x 7.1" x 16.9" (approx.)
Ventilation: rear of case 3" exhaust fan in PSU
directly below PSU is another 3" exhaust fan
left side of case is ventilated for air intake, funnel inside case that covers large fan on top of i7 2.93 quad CPU
and air intake all around lower front half of front bezel

link to picture of PC at costco web site.
http://www.costco.com/Browse/Product...t56671&topnav=

Thanks for the explanation of delta temperature. I think I'm OK then.
later day I'll work out the numbers.

Thanks all.

BTw, it's meeting all of my needs, including very good platform for Real Flight G5 flight simulator.
This is a quiet PC I can not hear any noise from it!

 

[mgm1]

last Night I D/L EverestHome PC temperature monitoring software.
Any recommendations that I install it?
Any downside to installing this software?

 

[ehume]

last Night I D/L EverestHome PC temperature monitoring software.
Any recommendations that I install it?
Any downside to installing this software?

that software is a standard tool. if you do like it uninstall it.

i have never read a thing about it doing any harm.

except it helps to lead you down the enthusiast path. it's a kind of fun that is very hard to resist

you have been warned

but the warning is probably too late

welcome to the funhouse

 

[mgm1]

Are these tempertaures troublesome?
Catalyst reports, at idle, the GPU temperature is 40-43C and under load, running Real Flight, GPU temperature is up to 63C. at idle GPU fan speed is "0" even the GPU temperature is 40-43C.
Under load GPU fan utilization could be almost 100 percent.

"...except it helps to lead you down the enthusiast path. it's a kind of fun that is very hard to resist

you have been warned..."

You're right the warning is too late. It's not a computer it's an obsession.....

 

[jvroig]

Are these tempertaures troublesome?
Catalyst reports, at idle, the GPU temperature is 40-43C and under load, running Real Flight, GPU temperature is up to 63C. at idle GPU fan speed is "0" even the GPU temperature is 40-43C.
Under load GPU fan utilization could be almost 100 percent.

Those temps are still pretty cool. It has already been explained to you.

Perhaps to help put your mind at ease, consider the following:
1.) GPUs are designed to run much hotter than CPUs
2.) GPUs running at high 80s - 90s are not uncommon at all.
3.) My 4770 idles at 50C, and Fallout 3 / Dragon Age can take it up to >70C

You have nothing to worry about. Your temps are very good.

 

[RavenSEAL]

You're fine, all your temps are checking out. I'd only be concerned if it goes anything higher than 70C. Even then, thats not even bad for a high end radeon, just make sure you don't let it get too hot.

 

[mgm1]

Great, it's been idling 40-43 and under Real Flight load maxes at 63C,
so i'm a happy camper.

thanks all.

 

[YoshiMon]

Hello AnandTech forums. Thought this would be a good 1st post for me.

Just like to give some props to the 5670. Here is me in a normal usage scenario streaming video from my Orb server while playing ME2.