My Lian-Li case sides add 18C to temps!

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Help!

I think I've diagnosed why my PC has been running so hot. With the case sides on (it's a Lian Li PC-V1110B) max CPU temp hits 100C, with the sides off it never gets above 82C (this is during Prime95 Blend test).

Anyone else got this case and experienced the same problem? I can't imagine that my cable management is so poor that it would add 18C to temps... that's an enormous jump... maybe it's got something to do with the extra fan I have pushing air onto the RAM and into the HSF?

Any ideas/help/commiserations would be appreciated!

EDIT: Rear Lian Li case fan is set to max speed setting, not middle or low.
 
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FYI Spec:

Lian Li PC-V1110B
OCUK Gigabyte i7 Bundle @ 4011.09MHz @ VCore 1.3 (up from 1.275 OCUK setting)
Megahalems HSF (To replace Noctua, which was about 10C hotter)
Corsair 850W Modular PSU plugged into wall
5 x SATA HDDs
Fairly large GeForce 8800GT
XFI Extreme Gamer PCI Soundcard

System is currently unstable.
 
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thanks :)

here's an old pic:

IMG_1825.jpg


Since this shot was taken I've added a few more HDDs and instead of the Noctua I now have a Megahalems in there.

Question:

My Megahalems Akasa Apache fan is attached to the end nearest the back of the case, sucking air out of the HSF and blowing out to the rear fan. Would it be better to move this fan to the other side of the HSF so it pushes air through it and out to the rear fan?
 
In my CURRENT setup (not as above):

1) air in from front case fan at bottom of case
2) air blowing ONTO RAM at middle top case fan
3) air blowing OUT of HSF and onto rear fan at top
4) air blowing OUT of rear fan
5) PSU fan as-is (blowing out presumably)

only difference from the pic above is the Megahalems and the fact that I have ONE Apache fan blowing OUT of HSF, not ONTO it or both.
 
Thanks for your help!

The rear fan is definitely connected and running at max speed (using the little switcher on the back of the case).

I will try disabling it and see what happens. I'll also try disabling the middle case fan over the RAM.

I've attached a drawing of my system:

system.jpg
 
Indeed.

I've just moved the Apache to blow onto the HSF and then the rear fan blows air out. (Moved it to other side of HSF in other words) as per your advice.

Temps have dropped a few C although I still have case sides OFF. Will test again with sides on once i've run Prime.

Thanks all so far!
 
Thanks Big,

I've now got the Apache on Push mode, which has dropped temps a few C, which is good.

To be honest this is supposed to be a top of the line case, pretty much - airflow really shouldn't be an issue at this price (paid about £125 for it...).

I think I might invest in a second Apache for Pull mode. Is there any way to make sure that the rear exhaust and Pull Apache will match in speed? Can it be manually set using software such as Speedfan, or does it need to be a hardware match?

Thanks,
 
well spotted... there are gaps in the partition but basically no intake fan for the top (main) half of the case... weird.... i guess it might be possible to somehow install a fan at the front like that. i'll look into it.

not tried running this system at stock settings yet but i've just left prime running for about 4 hours and it's not crashed. yet.

thanks guys
 
Just to double check the situation with push-pull. Am I right in thinking then that all three fans (push, pull and rear case) need to be working at the same speed? How can this be ensured? Speedfan or...?

Many thanks,
 
thanks.

i've ordered the akasa fan splitter so in theory i should be able to run both Apaches plus two front and rear fans all at the same speed. should be all good i think!

cheers,
 
Result!

Thanks so much guys for all your help and suggestions with this.

The Lian Li HDD Rack with 1000RPM Intake Fan plus the extra "pull" Apache CPU Fan has enabled me to keep the case sides ON at last and CPU and system temps are basically the same as before.

Previous temps (with sides OFF and only ONE Apache in "push" and NO front intake fan):

Idle - 43C
Load - 73C

New temps (sides ON and Extra Apache in "pull" mode, plus Lian Li front 1000RPM Intake):

Idle - 44C
Load - 74C

Total cost for all that? £35! Bargain! So adding an intake fan and the extra Apache has sorted all my temp issues. Very very pleased indeed!

The front intake fan really makes a difference to CPU temps. With the door closed (so intake air is blocked and can't get in) CPU runs at load at about 76C, with the door open it runs a few C cooler. Now I just have to find a way to keep the door from closing by itself (floor isn't flat!).

Cheers!
 
haha yeh indeed.

to be honest i'm really disappointed with Lian Li's choice not to include an intake fan in this chassis. It's a premium case costing around £130 and is clearly for server/workstation use given it's size and features, so an intake fan is a really odd thing not to include...

Never mind all working now!
 
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