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[Build Log] Graphite - Streacom FC8 EVO - Z77E-ITX / 3570k (passive/undervolted) / HD 7750 - Page 2

post #11 of 96
Thread Starter 
Quote:
Originally Posted by armourcore9brker View Post

It's 192W btw. tongue.gif
It works because the brick provides 192W of 12V power. The Pico-PSU only takes some of that and converts it to the various other voltages needed for the system. The 12V line just gets passed through the Pico with no extra regulation. I've always had a high power Pico-PSU but a close friend of mine was able to use a 200W Xbox brick with an 80W Pico to power a normal mITX board + a discrete GPU.
That is insane, LOL. I never would've thought that would work. Thanks for the explanation though smile.gif
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post #12 of 96
Damn I love that case, a heap of power and gaming ability in that tiny box. Interested to see the interior shots of it all together. thumb.gif
post #13 of 96
Thread Starter 
Soo.... it's built! Unfortunately I left my camera at home so I'm not able to upload pics at this time, but I do have some information to report, and some questions to be asked...

First, some observations: Silence is awesome... I almost didn't want to put the 7750 in because I knew that no matter how quiet it was, it was going to ruin the complete silence of when it was fanless, LOL. Also, Intel HD 4000 is surprisingly capable for light gaming. The two SSDs in RAID0 are insanely fast... I haven't had the opportunity to benchmark them yet to see if I'm getting ~1GB/sec speeds, but just clicking around Windows was almost fun just because everything was so fast it was messing with my brain. Note that this could probably be the same experience I would've had with just a single drive on SATA3. I had one of the SSD's on my 'old' build but only running at SATA1 speeds. Windows definitely boots incredibly fast, as has been reported by other ASRock Z77E-ITX users, although since I'm running in RAID, there are a few extra seconds during POST for the RAID controller. The heatsink side of the case only gets mildly warm to the touch even when gaming. I did not run anything for a long period of time though, so I will have to try again after a good gaming or benchmarking session.

Some performance pics I snapped with my phone. These were taken while running Half-Life 2: Lost Coast benchmark at max detail. I think resolution was 1600x900 in windowed mode. I ran Crysis at max detail in the same resolution and windowed, and the results were very similar. Also this is 'with' the 7750 installed. The system idles around 31c-35c and about 30w. Ambient temperature is 25c.



These temps are acceptable to me... the problem lies in running Prime95, which hit 100c in seconds. Obviously there are limitations due to the passive nature of the case, but I'd like some insight on whether you all think this is just 'what it is' or if improvements can be made without adding fans into the mix (which would defeat the purpose). This was also my first time ever using Prime95... could it just be User Error? LOL

Also, the 4-pin Pico-PSU connector does not fit in the provided hole in the case. The single 'pin' connector fits fine, but my 192w adapter uses the 4-pin, so I'm at a loss on what to do. I figure I need to make the hole larger, as well as put in two holes for the mounting screws, but not sure if that's something easily done with just a dremel, or what.

One last thing, the Wi-Fi seems to be acting up. It appeared to be working fine while I was at work (where I put it together) but when I got home at first I was getting terrible download speeds (30-50kbps). I tried messing with the antennae a bit, and the situation reversed, download speeds went up (although not quite as high as they should be) and upload speeds went into the toilet. My guess is maybe the internal Wi-Fi connection is 'shorting' or something?... I'll have to look at it later.

Hoping to get some additional benchmarks done later tonight, and maybe some pics as well.
Edited by SpyderMS - 10/21/12 at 9:59am
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post #14 of 96
Thread Starter 
Here's a few pics. After putting the top on the case, it seems to idle more around 45c-50c. I ran Prime95 again and it took longer to hit 100c this time. I thought it was stabilizing at 101c but then it went to 102, and 103, so I stopped the test. Media playback uses very little CPU, so temps stay in the 50's.


Everything installed:


With HDD tray:


All connected. Raspberry Pi on the left and standard 3.5" HDD on the right, for scale.


Ready to watch some movies


Mmm, RAID...


Prime95 Torture test:
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post #15 of 96
Quote:
Originally Posted by SpyderMS View Post

I ran Prime95 again and it took longer to hit 100c this time. I thought it was stabilizing at 101c but then it went to 102, and 103, so I stopped the test.

Prime95 is a bit extreme test for a CPU that's passive cooled, but you could try it with one or two cores active instead of all 4. Also you could measure the temperature of the heatpipes and of the fins on the outside heatsink. Perhaps it can give you insight into how much heat is being removed.
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post #16 of 96
that is a sweet setup.
post #17 of 96
Glad to see it all put together. biggrin.gif

Does the 7750 extend past the edge of the board at all? It doesn't look like it and from all the measurements I've seen of it, it shouldn't.

How are the temps on the 7750? Have you tried stress testing it with MSI Kombustor?
     
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post #18 of 96
Thread Starter 
Quote:
Originally Posted by WiSK View Post

Prime95 is a bit extreme test for a CPU that's passive cooled, but you could try it with one or two cores active instead of all 4. Also you could measure the temperature of the heatpipes and of the fins on the outside heatsink. Perhaps it can give you insight into how much heat is being removed.
How do you disable the cores? Measuring the heatpipe temp would be a good idea. I'll probably pick up one of these, seems decent enough.
Quote:
Originally Posted by stealthybox View Post

that is a sweet setup.
Thanks man, I kinda like it myself biggrin.gif
Quote:
Originally Posted by armourcore9brker View Post

Glad to see it all put together. biggrin.gif
Does the 7750 extend past the edge of the board at all? It doesn't look like it and from all the measurements I've seen of it, it shouldn't.
How are the temps on the 7750? Have you tried stress testing it with MSI Kombustor?
I don't recall, but just looking at the pics it looks like if it does, it's definitely not by much, 10mm at the most? I haven't recorded the temps of the card while gaming yet... I need to get my Steam folder back on the drives. The games were originally tested on a spare 250GB laptop drive, as I'd forgotten to bring the SSDs to work when I built it wackosmiley.gif

Thought I'd post a pic of my old rig in it's new home. I moved it in to the garage where it will serve to download torrents and stream them to the rest of the house smile.gif My apologies for the horrible cellphone-in-low-light picture quality. I meant to get a pic of it next to the Streacom case, but forgot frown.gif I'll be removing the monitor, keyboard and mouse from it, and it will just be a big black box in the garage. I have a Chrome extension in the new rig that sends torrents to it for downloading, and makes monitoring them easy.

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post #19 of 96
Quote:
Originally Posted by SpyderMS View Post

How do you disable the cores?

Start Prime95, click away the first box about Gimps, choose just stress testing. Then it asks you if you want to run torture test. Before you click that, open windows task manager, find prime95.exe in the process list, right click it and choose set affinity. Then click off two cores, e.g. leaving CPU2 and CPU3 checked, and press okay. Then go back to Prime95 and where it asks number of torture test threads to run, type 2 instead of 4.
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post #20 of 96
Thread Starter 
Quote:
Originally Posted by WiSK View Post

Start Prime95, click away the first box about Gimps, choose just stress testing. Then it asks you if you want to run torture test. Before you click that, open windows task manager, find prime95.exe in the process list, right click it and choose set affinity. Then click off two cores, e.g. leaving CPU2 and CPU3 checked, and press okay. Then go back to Prime95 and where it asks number of torture test threads to run, type 2 instead of 4.
Ahh, thanks! Interesting that they don't just have an option in the software.
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