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KMoA
14-07-2009, 12:31 PM
Inspired by PCWorlds 'beast', I have built one for myself but it is causing me some concern. I'll detail the hardware and then the apparent problems.
1. Antec 1000w PSU
2. Aurora case http://www.bjorn3d.com/read.php?cID=810
3. MB: ASUS P6T INTEL X58 CORE I7 PCI-E DDR3 CROSSFIRE + SLI. http://www.computerlounge.co.nz/components/componentview.asp?partid=8106
4. CPU: INTEL CORE i7 920 SLBEJ Quad Core 2.66GHZ PROCESSOR SOCKET LGA1366 8MB L3 CACHE.
http://www.playtech.co.nz/category.php?action=show&id=865
5. RAM. 1 x OCZ Intel i7 Kit Triple Channel 6GB (3x2GB) PC3 12800 DDR3 CL8 (OCZ3X1600LV6GK)
6. Card: LEADTEK PX9800GX2 GeForce 9800 GX2 1GB 512-bit GDDR3 PCI Express. http://www.leadtek.com/eng/3d_graphic/overview.asp?lineid=1&pronameid=414
7. Drives [ raided ]. 2 x Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive - OEM (01102439)
8. OS. Win7 RC
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This is a new construct and am trying Win7 so have little on it in the way of software.
I have:
1.Trial version of Kaspersky internet security
2. Trial version of Spyware Doctor
3. Speed fan
4.PCProbe II
5. File-ex
6. Cinema4D
A couple of online games installed.
All of the software is installed on the computer this will replace and works pretty much problem free.
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My concerns are these.
1. The temperatures displayed across the spectrum. I booted this morning and within 25 minutes, the temperatures had increased to these [ http://www.wellsford.co.nz/computer/computer.html ] Last Sunday, I had it running all day and the temps were considerably higher, The CPU reaching 72c at one point, the 2x GPU at 80C. The MB[ system ] stayed cool at around 40C.
I noted some hesitation in Cinema4D in opening and 10-15 seconds passed before it allowed me to move anything onscreen whereas it usually opens extremely quickly and worked instantly [ one of the reasons I built this computer is to work in high end graphics programs ] I put the delay down to the GPU's on the card running so hot.
I have been through a number of forums and there appears to be some concern at the temps displayed for the i7 but also some reassurance that the high temps are not a problem.
2. The CPU usage. I booted this morning and with 10 seconds it went right to 100% usage [ http://www.wellsford.co.nz/computer/computer.html ] without opening anything. It will stay there without dropping.
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I have ordered a Zalman CNPS9900 LED, Copper CPU Cooler to replace the standard Intel fan in the hope that this will drop the CPU temp.
I am also planning to put another fan in the case side opposite the card in the expectation that this will suck more of the heat that it generates. The card has a fan inside its case.
I placed the fan on the CPU using the paste that was on the base. I havn't tried replacing the paste nor have I done anything to the system since I put it together 2 weeks ago.
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Thats about it. Any help at all would be appreciated.
Ken

MushHead
14-07-2009, 12:56 PM
With the CPU usage - what does Task Manager (or the Win7 equivalent?) say about the individual processes' usage? - you should be able to narrow it down to one or 2 (or up to 4) programs hogging the CPU - with quad cores a process may be limited to 25% - not sure whether threads within processes are counted, in which case may go over 25%. That may go some way towards explaining why your CPU temps are high.

wratterus
14-07-2009, 01:23 PM
Yep - the i7 does run warmish but if it's under strain constantly, it will get hot. (60 - 65deg, exactly what you are seeing). I ran a Prime95 torture test for 8 hours on a build with a Q9550 and standard heatsink, all cores hit 65 and stayed there, so it wouldn't seem there is a cooling issue with your PC.

You need to sort out the CPU usage issues and then look at the temps. I'd start by trying it in safe mode, if the CPU isn't being raped then boot normally, and check in the task manager which process is giving it grief.

KMoA
14-07-2009, 01:32 PM
Task manager gave me the clues and digging deeper, I found the culprit. A 'small' program had downloaded not 1 but 75 tasks to complete and was trying to run them all. I deleted it and the usage plummeted back to practically zero, the temps are on their way down, CPU @ 32 although the GPU's are continuing to run at 72 but my primary concern has been solved. Thanks to both of you -)

wratterus
14-07-2009, 02:05 PM
:)

GPUs do run hot as a rule - the card you have (If I remember rightly) is notorious for it. I have a GTX 260 with stock cooling and idling that runs at roughly 40 - 45deg, under load I've seen it get up to around 80 deg, As long as the 9800gx2 isn't getting over 85ish deg under load you shouldn't need to worry about it - with the way those cards are set up there's bugger all you can do about it anyway, except making sure there's good airflow around the back of the case.

pctek
14-07-2009, 04:08 PM
A 'small' program had downloaded not 1 but 75 tasks to complete and was trying to run them all.

You do have some antispyware on this? No? Install some and scan it.