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a possibly bad idea: splitting power

post #1 of 8
Thread Starter 
so i got this this dell 5150c for free, and i had some old gpu's laying around. some hours later, this was the result, LOL:

DSC_0002_zps0537bfa7.jpg

the card is a msi 560 ti, with aftermarked cooler. the system has a oem 275 w powersuply. it has only one sata power plug, that normaly powers the hdd. my plan is to split this, so it powers the gpu, and a ssd. can this cause issues?
post #2 of 8

The PSU does not have enough power to power all of this. The 560 Ti combined with the CPU while gaming will consume too much power and the PSU could fail and die, killing either your video card, CPU, or the entire computer.

 

That's why the case is so small. That 275W PSU isn't intended to include a video card like that.

It's a computer!
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It's a computer!
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Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #3 of 8
nice case MOD! thumb.gif

but unfortunately as two cables pointed out the PSU isn't sufficient enough, let alone it would NOT be a good idea to make use of a single 12 volt wire to power the GPU and adding a hard drive on top of it.

if you want to add a discrete graphics card then maybe sell the 560 ti for a few bucks and flip it to buy a 7750 thats power draw would only be needed through the pci-e slot and be able to be supported by a lower wattage PSU such as you have.

i don't know off hand if you could go for a 7790 but maybe a 7770(?) still you can also make use of your case MOD by NOT having to buy a low profile card wink.gif
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loon 3.2
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post #4 of 8
There's a dock for full size graphics cards for laptops that may be of interest here. The graphics card goes in the slot, connects to power, and the whole thing is separate from the laptop, linked only by cabling
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post #5 of 8
If you don't mind running an external power supply, you could probably use an old low wattage psu to only power the 560 TI. Depin a ground and the green wire from the external PSU and solder that to the respective cables on the 24 pin ATX cable inside the case, and run the PCIe cables to the PSU. Would look really ghetto though.
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post #6 of 8
Quote:
Originally Posted by looniam View Post

nice case MOD! thumb.gif
if you want to add a discrete graphics card then maybe sell the 560 ti for a few bucks and flip it to buy a 7750 thats power draw would only be needed through the pci-e slot and be able to be supported by a lower wattage PSU such as you have.

I know my i7 Alienware x51 came with 240 watt PS and a GT 640 GDDR5. The x51 is a very small profile Dell.

That card only draws around 75 Watt. but it still can play some fairly modern games as long as you don't go crazy on the settings. Its not as slow as a normal gt 640 with DD3 as it has much higher memory bandwidth.

I upgraded the video card to a GTX 660 TI and the power supply had to be increased to the 330 watt to accommodate the card. The 330watt PS can handle up to GTX 670 and some people report GTX 760.

I also added a SSD drive along side the stock HD (used a splitter). I'm telling you all this because the numbers might be useful..

You'll need a slightly larger PS or a more efficient video card.

No problem splitting the power to run the SSD, but I think the video card probably will draw too much power.. could totally melt down under load.

At least your solution should keep the video board pretty cool I suppose
Edited by bbond007 - 9/22/13 at 10:27pm
post #7 of 8
Thread Starter 
Thanks for all advices, this mod is mainly for laughs and giggles, with the massive card hangin out. After all your feedback, i have decided not to power it up with the splitter connected. I will be removing the cd and sdcard Readers, and install a moew juicy powersuply when i get ahold of one.
post #8 of 8
Quote:
Originally Posted by ToothBear View Post

Thanks for all advices, this mod is mainly for laughs and giggles, with the massive card hangin out. After all your feedback, i have decided not to power it up with the splitter connected. I will be removing the cd and sdcard Readers, and install a moew juicy powersuply when i get ahold of one.

 

Just as long as it's not some low-quality PSU.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.400-1.424V in Manual Mode) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (C:) 250 GB Samsung 840 EVO (D:) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.400-1.424V in Manual Mode) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (C:) 250 GB Samsung 840 EVO (D:) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
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