using external power supply for graphics card

[Geofrancis]

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

yea thats what i thought so i just got another 120w external power supply. im just waiting for it to arrive.

 

[Lazzer408]

The one you posted the picture of is an open frame psu with passive cooling = silent.

I have yet to find a sff psu with a quiet fan. The 1u supplies are even worse.

 

[THRiLL KiLL]

why not grab a newer powersupply that has the 6pin videocard power cable and then jumper it to start when the system starts up?

http://www.overclock.net/faqs/15751-info-can-i-use-two-power.html

yeah it will be a bit bigger, but it will be quietier =)

 

[Geofrancis]

The one you posted the picture of is an open frame psu with passive cooling = silent.

I have yet to find a sff psu with a quiet fan. The 1u supplies are even worse.

well the other thing was like i said in a post before i dont like mains 240v cables in my case.

 

[Lazzer408]

well the other thing was like i said in a post before i dont like mains 240v cables in my case.

I know you had mentioned that. Were you pondering putting the open frame supply in the chassis? I figured you would mount it externally.

What's the 120w brick going to run you?

 

[Geofrancis]

I know you had mentioned that. Were you pondering putting the open frame supply in the chassis? I figured you would mount it externally.

if i was going to use it i would have mounted it under the hard drive rack but im not sure if it would fit.

my other idea was to get a 400w 12v dc psu and run the graphics card and a pico psu for the motherboard

What's the 120w brick going to run you?

what do u mean?

 

[Lazzer408]

if i was going to use it i would have mounted it under the hard drive rack but im not sure if it would fit.

my other idea was to get a 400w 12v dc psu and run the graphics card and a pico psu for the motherboard



what do u mean?

What was the cost?

 

[Geofrancis]

What was the cost?

£16 inc delivery from china

 

[Geofrancis]

got a bit of an update i made a new front for case out of card board so i can use it as a template . so the lcd is mounted along with 2 usb ports underneath it and i still have to install the leds for the power supply status. ive decided to leave the stock buttons for now i probibly will change them eventualy.

i have found a strange problem when i turn on pci-e 2.0. i start getting random BSOD's when starting the computer. now i can only start the computer with it off and becasue i only have a pci-e 4x link it takes about 20fps off me in games.

i done a few measurements with a killawatt meter on the 2 power supplys and with a prime 95 + furmark load it was pulling 205w from the main psu and 83w from the external one. so it very close the max power of the internal 200w psu.

 

[Lazzer408]

got a bit of an update i made a new front for case out of card board so i can use it as a template . so the lcd is mounted along with 2 usb ports underneath it and i still have to install the leds for the power supply status. ive decided to leave the stock buttons for now i probibly will change them eventualy.

http://i45.tinypic.com/24n4qi9.jpg

i have found a strange problem when i turn on pci-e 2.0. i start getting random BSOD's when starting the computer. now i can only start the computer with it off and becasue i only have a pci-e 4x link it takes about 20fps off me in games.

i done a few measurements with a killawatt meter on the 2 power supplys and with a prime 95 + furmark load it was pulling 205w from the main psu and 83w from the external one. so it very close the max power of the internal 200w psu.

cardboard ftw.

Is their any wattage difference when you turn on 2.0?

 

[Geofrancis]

cardboard ftw.

Is their any wattage difference when you turn on 2.0?

i havnt had a chance to check as it bsod's straight away. i removed four of my hard drives and unplugged anything not essential and it did the same. anyway i have bought a 9600gso for some cuda action and to lower the power consumption a little.

 

[Geofrancis]

Got the 9600gso installed and it worked for a few days then the bsod's returned so ive took the card out and im going to get a new itx case that will take a micro atx psu for the phenom/mobo/hd4850. None of this dual psu hassle and put my intel atom board back in the 200w case.

 

[smashed_99cbr]

seems like a lot of work and a lot of trouble... not to mention silly... with no real benefits to speak of

 

[Geofrancis]

seems like a lot of work and a lot of trouble... not to mention silly... with no real benefits to speak of

what are you on about?

 

[Geofrancis]

the case that im looking at is this one
http://www.ksn-online.co.uk/product_info.php?products_id=7530

that case is smaller and will let me use a normal micro atx power supply that is much quieter and the 200w power supply is not powerfull enough for a decent gaming computer.

i seen 500w micro atx power supplys but they are too cheap to be any good. so i was thinking of getting this one
350w Be Quiet BN134 SFX microATX PSU
http://www.scan.co.uk/Products/350w-Be-Quiet-BN134-SFX-uATX-PSU

is there any more decent micro atx power supplys out there?