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rectangular case fan above pci slots needed



 
 
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  #11  
Old October 10th 04, 10:24 PM
papasurf
external usenet poster
 
Posts: n/a
Default

Good points Rusty. I am the guy who said "no fan" but who am I to say don't
try. Modding is fun and it looks like the Silverstone would be a nice case
to add some personal touches to. And to leadfoot, I know I for one would
like to hear more about your success with your case.
"Rusty" wrote in message
...
That is a good ideal, IF you were to cut your case. I hope I did not
offend you I just answered the question which was, "I'm looking for some
type of fan that will work in the rectangular grill above the PCI slots.
Does not have to be rectangular but must push air through the grill", and
because such a endeavor from an engineering point of view would not be
beneficial, which is why this response was given,"You don't put a fan
there. The design is for the 80 mm to push air out of the case and at the
same time to draw cool outside air over the PCI cards. A very ingenious
design. Plus you need the room for your hands to lock and unlock the
latches for your cards. Once you set up your system and get it running it
will all make sense. Nice case!". I replied to the post, "I would", in
order to cool the dead air spots in the case. If you plan to overclock,
this case will serve you well for the cpu but as you have already noticed
there are dead air spaces across the APG / PCI slots, and across the hard
drives. Most modern PSU have thermally controlled fans and will not move
enough air to cool the HD area in this case much less an overclocked video
card. Heat from an overclocked video card will rise across the PCI slots
and the HD's. Forced air convection across this area would help in the
case of an overclocked system. If all you plan to do is to overclock the
cpu this case will really keep everything cool, but be aware that an
overclocked motherboard, memory, and video card will also produce
additional heat and will need additional cooling.

If the inside of the case is put in negative pressure by putting a 120mm
blow hole in the top of the case a lot of dust will collect inside of the
box, and alter the designed air flow within the case by pulling air away
from the tunnel. The combination of a side panel fan (intake) and a blow
hole (exhaust) would balance the air flow and greatly reduce the case
temperatures away from the tunnel area, a really good ideal. Note that
the funnel will cover the motherboard thermal resistor. An intake 120mm
side panel fan would also help and the case would be under positive
pressure reducing the amount of dust collected inside of the box and
forcing air out of the PSU above. A side window would look nice and show
off all those high dollar components. Just an ideal.

BTW I have yet to find a case that was designed for the extreme
overclocker in mind, although the people at thermaltake have tried but at
a high cost. The silverstone tjo6 is a good design in the right direction
a modification to the tunnel to cover the motherboard and PCI slots with
120mm fans at the intake and exhaust would help. The designers of the
tji6 have also made the assumption that the PSU will have fans that move
allot of air. With the push toward a silent PC most PSU slow the fans
down to half speed (1400 to 1500 rpm).

"Leadfoot" wrote in message
news:H4W9d.34290$a85.14975@fed1read04...

"Rusty" wrote in message
...
I would cut a window in the side panel and use fan screws to fasten the
Plexiglas to the case opening then cut out a hole in the Plexiglas for a
120mm fan directly across from the pci slots. A CD can be used for the
120mm hole size and dremel will cut the Plexiglas and the metal case
with

a
little sand paper and black touch up paint it will look like it can from

the
manufacture that way. You could get creative with the window cut with

such
a large case. You could have the case side panel professionally cut
with

a
laser but that will cost you some additional money.


IF I'm going to cut the case it would be to put a 120mm fan at the top
to
suck hot air out



"Leadfoot" wrote in message
news:8Lv9d.9416$a85.6840@fed1read04...
http://tinyurl.com/6bpqo

I'm looking for some type of fan that will work in the rectangular
grill
above the pci slots. Does noy have to be rectangular but must push
air
through the grill

It's for a silverstone tjo6 coming in on monday VBSEG










  #12  
Old October 11th 04, 03:14 PM
Rusty
external usenet poster
 
Posts: n/a
Default

The case temperature differential is about 2-4°C
120mm x 38mm fan intake (110cfm) behind the HD
3 80mm x 25mm (30 cfm each) led fans exhaust one blow hole and two in the
back of the case
1 80mm x 25mm (30 cfm) led fan intake directly across from the CPU in the
Plexiglas window
TT 420W PSU with thermal controlled fans (not good for cooling ~20-21cfm)
Total Case Intake: 140 cfm
Total Case Exhaust: 110 cfm
I use a TT silent boost HS with a rheostat controlled vantec tornado fan on
the
CPU and yes the system is loud but stays cool. Tried to make the system
Amb: 26°C
Case: 28*°C
idle: 38°C
load: 45°C
CPU: 1700+ @1823Mhz 1.75v on a 174Mhz FSB 680 A core
Memory: Micron DDR Dual Channel PC2100 2.7v on a 174Mhz FSB 3-3-11
Video: 5900SE EGA 1.5v/1.4v/1.4v 440/300/850 GPU3D/GPU2D/Memory modified
BIOS 1U startech copper HSU with 80mm x 25mm fan 45°C under load
MB: NF7-S modified BIOS CPC on (ABIT NF7-S ver. 2.0.01 12-31 09.09.04
by -=Merlin=-)
Have had the cpu as high as 1900Mhz @ 1.9v (Max) but I really don't like any
voltage higher than 1.8v
Max for a 680 A core is about 1850 Mhz
Memory max is 183 Mhz at 2.8v but the computer gets a little squirrelly but
will run prime stable.
You can exceed the voltage limits of the components before they over heat,
all the signals get weird.
I have plans to replace the CPU with a 2600+ M and the memory with Kingston
PC3500 soon.
Would like to add a second HD but the Seagate 40MB works OK for now kind
slow though.
I tried to attach a photo but the newsgroup mail server keep kicking the
email back.

"papasurf" wrote in message
...
Good points Rusty. I am the guy who said "no fan" but who am I to say
don't try. Modding is fun and it looks like the Silverstone would be a
nice case to add some personal touches to. And to leadfoot, I know I for
one would like to hear more about your success with your case.
"Rusty" wrote in message
...
That is a good ideal, IF you were to cut your case. I hope I did not
offend you I just answered the question which was, "I'm looking for some
type of fan that will work in the rectangular grill above the PCI slots.
Does not have to be rectangular but must push air through the grill", and
because such a endeavor from an engineering point of view would not be
beneficial, which is why this response was given,"You don't put a fan
there. The design is for the 80 mm to push air out of the case and at the
same time to draw cool outside air over the PCI cards. A very ingenious
design. Plus you need the room for your hands to lock and unlock the
latches for your cards. Once you set up your system and get it running it
will all make sense. Nice case!". I replied to the post, "I would", in
order to cool the dead air spots in the case. If you plan to overclock,
this case will serve you well for the cpu but as you have already noticed
there are dead air spaces across the APG / PCI slots, and across the hard
drives. Most modern PSU have thermally controlled fans and will not move
enough air to cool the HD area in this case much less an overclocked
video card. Heat from an overclocked video card will rise across the PCI
slots and the HD's. Forced air convection across this area would help in
the case of an overclocked system. If all you plan to do is to overclock
the cpu this case will really keep everything cool, but be aware that an
overclocked motherboard, memory, and video card will also produce
additional heat and will need additional cooling.

If the inside of the case is put in negative pressure by putting a 120mm
blow hole in the top of the case a lot of dust will collect inside of the
box, and alter the designed air flow within the case by pulling air away
from the tunnel. The combination of a side panel fan (intake) and a blow
hole (exhaust) would balance the air flow and greatly reduce the case
temperatures away from the tunnel area, a really good ideal. Note that
the funnel will cover the motherboard thermal resistor. An intake 120mm
side panel fan would also help and the case would be under positive
pressure reducing the amount of dust collected inside of the box and
forcing air out of the PSU above. A side window would look nice and show
off all those high dollar components. Just an ideal.

BTW I have yet to find a case that was designed for the extreme
overclocker in mind, although the people at thermaltake have tried but at
a high cost. The silverstone tjo6 is a good design in the right direction
a modification to the tunnel to cover the motherboard and PCI slots with
120mm fans at the intake and exhaust would help. The designers of the
tji6 have also made the assumption that the PSU will have fans that move
allot of air. With the push toward a silent PC most PSU slow the fans
down to half speed (1400 to 1500 rpm).

"Leadfoot" wrote in message
news:H4W9d.34290$a85.14975@fed1read04...

"Rusty" wrote in message
...
I would cut a window in the side panel and use fan screws to fasten the
Plexiglas to the case opening then cut out a hole in the Plexiglas for
a
120mm fan directly across from the pci slots. A CD can be used for the
120mm hole size and dremel will cut the Plexiglas and the metal case
with
a
little sand paper and black touch up paint it will look like it can
from
the
manufacture that way. You could get creative with the window cut with
such
a large case. You could have the case side panel professionally cut
with
a
laser but that will cost you some additional money.

IF I'm going to cut the case it would be to put a 120mm fan at the
top to
suck hot air out



"Leadfoot" wrote in message
news:8Lv9d.9416$a85.6840@fed1read04...
http://tinyurl.com/6bpqo

I'm looking for some type of fan that will work in the rectangular
grill
above the pci slots. Does noy have to be rectangular but must push
air
through the grill

It's for a silverstone tjo6 coming in on monday VBSEG












 




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