Lian li PC-75 case mods. Should I or not.?

[Guest]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

Hello, I'm planning to purchase a Lian Li PC-75 tower case for my new
system that I'm planning to build. I will include the following.

1. MSI K8N Neo4-SLI motherboard
2. AMD Athon 64 3500+ cup (Winchester core)
3. Corsair XPERT TWINXP 1024 3200XL DDR 400 1Gig
4. 2x Chaintech SE6600 Geforce 6600 GT PCIe video cards
5. Silverstone Zeus ST65ZF 650 w PSU
6 2x Western Digital 74D Raptor 74 Gig HDD (Raid 0)
7. Western Digial caviar 74 gigabyte 7200 rpm data backup HDD
8. Plextor PX-716A DVD Writer

I need to know about whether or not I should get certain modifications such
as a blowhole for a 120mm fan in the top of the case. and also whether or
not it would be advisable to get a cutout for a UV fan in the clear acrylic
side panel. Of course I'm concerned about heat build-up inside the case
running a SLI game rig but I've heard that aluminum cases such as the Lian
li PC-75 are good heat dissipaters by themselves so please give me your
input regarding this matter. Your prompt replies will be appreciated.

Thank You

 

[Fitz]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

While I normally defer to kony's expertise, my personal experience with a
Lian Li PC65 case through 3 builds has been that the 80mm blow hole in the
top of the case has been helpful (though it definitely adds noise to the
system). My present system is an AMD64 3200 w/ 2 X 512MB PC3500 @ 2.6V, an
ATI 9800 Pro, 2 X 36GB Raptors (Raid 0), and an IBM IDE Deskstar storage
drive. Additionally, there is a Unibrain Firewire card, a Crystal Fontz LCD,
Plextor DVD/CDRW, a card reader and floppy. The PSU is an Antec 430W. Plenty
of stuff to produce heat. I don't have the side window or any side panel
fans. Two front intake fans (in front of the hard drive cage), one exhaust
fan in the back, the PSU fans (2), and the blowhole.

Everest Home list the CPU temp at 46C, the motherboard at 44C, and hard
drive at 29C.

These temps are fairly constant, and don't increase significantly under
greater loads (like games). One thing I have noticed is that failing to keep
the dust filters in the front of the case clean will raise the system temp.

 

[Guest]

Archived from groups: alt.comp.hardware.homebuilt (More info?)

On Sun, 22 May 2005 21:52:42 -0800, "Fitz"
<akfitz@mtaonline.net> wrote:

>While I normally defer to kony's expertise, my personal experience with a
>Lian Li PC65 case through 3 builds has been that the 80mm blow hole in the
>top of the case has been helpful (though it definitely adds noise to the
>system).


Perhaps I didn't word what I wrote well...

Adding fans can certainly lower temps, but the remaining
question is still whether the particular subsystems needing
cooling, are cooled most effectively (and at best cooling vs
noise and dust ratios) with any particular fan placement.

So long as the overall case pressurization is kept at the
desired level one can add fans to their heart's content...
but the specific system and case must be considered if one
is to maximize cooling to noise ratio... anytime I mention
adding fans it is always within the context of their being
especially low RPM and not adding significantly to the noise
of the system (unless stated otherwise).