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using external power supply for graphics card

Lazzer408 said:
I already have to modify the powersupplies heatsinks to get that to fit. lol Trust me there's no more room except for this little pocket under the... How small do they make pumps? :D
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lol i was looking at a picture of the your case you could get the pumps and waterblocks in but theres no where to put a radiator.

i suppose you could mabe squeeze one of these dual 40mm radiator in.
http://www.aquatuning.co.uk/product_info.php/info/p1703_Magicool-Mini-II-2x40-Radiator.html

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Now your just egging me on. lol
 
what about a 80mm radiator where the hard drive mounts are behind the graphics card.
 
You mean the mount at the front of the case that I'll be removing to make room for the videocard lenght? There will be about ~1.25" of space back there between the videocard and the bottom of the case. I planned on putting a 60 or 80mm thin fan there on the bottom to blow fresh air into the case for the video card. I'd need a really thin 1/2" radiator to make that work. I may need that space for a psu heatsink. I'll need to heatpipe from the psu over to it though.

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I didn't want to frankenstein the outside at all. Other then the fan in the bottom, there's no outside modifications. I'm trying to tweak it out as best I can and retain a simple look.
 
ah well then worth a shot lol. i dont really like having bits sticking out my computer either.
 
i have just been counting up how much the watercooling setup for my computer is going to cost me its nearly reching £100

got

zalman cpu waterblock
zalman northbridge block
XSPC 450LHP pump
hose

i still need

92mm radiator £28
80mm radiator £18
graphics card core block £15
graphics card ram block £16
4x 90 degree fittings £10
4x hose clamps £2.50
 
thats me got the wiring for the external power supply set up and soldered together. just got to swap my 4850 for my friends single slot version then get it all in the case.

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I managed to swap my 4850 with my friends single slot one and fit it along with the relay to turn the power on into the case no problem its ran furmark and 3dmark06 and its not had any problems so far. the next step is to setup the leds for the external psu status and mabe cut a vent in the side of the case bacause the graphics card is running a little hot.

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i have ran it for a day now and the only problem i have found is that the 4850 is dumping so much heat into the case that its setting the thermal alarm off on my hard drive rack but it has been running fine without the case on it. im going to cut some vents on the side of the case to let air in and the hot air out.
 
Geofrancis said:
i have ran it for a day now and the only problem i have found is that the 4850 is dumping so much heat into the case that its setting the thermal alarm off on my hard drive rack but it has been running fine without the case on it. im going to cut some vents on the side of the case to let air in and the hot air out.
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That sounds familiar. lol
 
Lazzer408 said:
That sounds familiar. lol
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the joys of small computers :laugh:

i am going to cut a hole in the case next to the graphics card and put one of those wire fan grills over it and another slot in the case for the hot air to leave.

i will probably make a fan shroud like the one on your 4850 to help the hot air leave the case entirely and form a seal between the graphics card and the vents on the case.
 
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this is some crazy rediculous shit good job dude you pulled it off :toast:
 
Geo let me doodle up an idea for you. brb

Ok, This it a top view. How about something like this but rather then blowing out the back like mine, angle yours towards the side of the case and put a few vertical rows of holes in the case side.

I also cut off the plastic deflector that directs the air upwards. This gave it a straighter shot back.

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lol that was pretty much exactly what i was planning to do. my dremel packed in so im just waiting for a hacksaw and some files to arrive so i can cut it by hand.
 
i have gave up on the aluminum front as it kept getting scratched so i ordered a perspex front as its much easier to cut and shape so im waiting for the perspex so i can get my led's, usb ports, power and reset buttons all mounted. without the hassle of trying to shape aluminium.
 
Geofrancis said:
i have gave up on the aluminum front as it kept getting scratched so i ordered a perspex front as its much easier to cut and shape so im waiting for the perspex so i can get my led's, usb ports, power and reset buttons all mounted. without the hassle of trying to shape aluminium.
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Aluminium is butter! What's giving you a problem? Maybe I can suggest something.
 
Lazzer408 said:
Aluminium is butter! What's giving you a problem? Maybe I can suggest something.
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there was scratches all over it and i burnt out my dremmel so i figured i can do just as good a job with clear plastic with an aluminum backing. the plastic is much easier to work with. i can file it into shape much easier and get everything into place rather than hacking away with aluminum that takes a lot longer.


i also got the overheating problem sorted. the problem was my sata rack was set to turn the overheat alarm on at 45c so i set it to 55c instead and now there is no alarms going off all the time.

my lcd screen finaly arrived and has been tested so im going to have that mounted soon
 
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Geofrancis said:
there was scratches all over it and i burnt out my dremmel so i figured i can do just as good a job with clear plastic with an aluminum backing. the plastic is much easier to work with. i can file it into shape much easier and get everything into place rather than hacking away with aluminum that takes a lot longer.


i also got the overheating problem sorted. the problem was my sata rack was set to turn the overheat alarm on at 45c so i set it to 55c instead and now there is no alarms going off all the time.

my lcd screen finaly arrived and has been tested so im going to have that mounted soon
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Did you do the side port mod for your gpu intake? How's that working out?
 
Lazzer408 said:
Did you do the side port mod for your gpu intake? How's that working out?
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i didnt have to the reason i was going to do that mod was because like i said my hard drive rack overheat alarm kept going off but all i had to do was set it from 45c to 55cf and now there is no problems. the hard drives were never in danger but the alarm is loud and annoying.

the card still runs a but hot but the fan only hits 60% its still loud so i might do the mod anyway once i get another dremel.
 
bad news kids the 120w psu i was using has been acting up. first it started with freezing when it was starting up the computer. but it got worse and worse BSOD's freezing crashing.

i only noticed that the psu was cutting in and out because i seen the red light on the back of the graphics card going on and off and the fan going mental.

next step is to get a new power supply possibly a 200w psu that i can mount internaly like this one
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Geofrancis said:
next step is to get a new power supply possibly a 200w psu that i can mount internaly like this one
]
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looks like a mini 1u power supply.

the only problem i see with them is that they run hot, and typicaly have a deafing 40mm fan
 
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