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Will this PSU handle this GPU?


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#1 Karzahni

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Posted 28 December 2015 - 08:04 PM

The eXtreme Power Supply Calculator says load 263 W, recommended 313 W. The PSU is 300W. Should I try this setup?

 

My mother's PC's GPU is terrible. She can't even use Chromecast properly. I now have a spare GPU that run Chromecast fine. (I wouldn't have expected Chromecast to be affected by the GPU, but her PC couldn't run it at all without a GPU. Also, when I run it on my PC, the TV displays some little graphical glitches that my old GPU did sometimes, but her PC does not cause this. Also, GPU options in Nvidia Control Panel or CCC affect the TV output.)

 

(Now I have a GTX 950, so the 3870 is spare)

 

Current setup:

Gigabyte GA-G41M-ES2L

Intel Core 2 Duo E7600 3.06 GHz

2 GB DDR2 RAM

Gigabyte GeForce 9400 GT

SATA SSD

IDE CD/DVD burner

FSP Group 300W PSU

 

Planning on swapping the 9400 for a Sapphire Radeon HD 3870 512 MB. The PSU has no 6-pin connectors, so I could use the 2x Molex to 6-pin adapter I have.

 

Thanks.

 

 

EDIT: Don't say buy a new PSU. She'd be better off keeping the 9400 in that case and I'd just have to use my PC for Chromecast (it's only one site that lags for her, most are fine) If the only way to run the 3870 is with a new PSU, then I may consider one and carry it over with her new system, which may get built in the next couple of years.


Edited by Karzahni, 28 December 2015 - 08:08 PM.

"A lizard in the desert wouldn't eat that." ~Gordon Ramsay


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#2 the_patriot11

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Posted 28 December 2015 - 08:22 PM

the 3870 series was extremely power hungry....ATI recomends at least a 450 watt PSU. Looking at FSP power supplies online most of them are true 300 watt power supplies-as in they can maintain 300 watts, which is better then most, which is probably why your getting away with the 9400. Looking at the power consumption of the 3870 and your system, its FEASIBLE it would work, but not garenteed, and if it does work, it would definetly run your power supply unit at 100% or near 100% load, which will heat up the inside of your case, and will shorten the life of the PSU. I think I would if it were me either stick with the 9400 or another low end  card like that-or purchase a higher end PSU.


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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#3 Karzahni

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Posted 28 December 2015 - 08:31 PM

the 3870 series was extremely power hungry....ATI recomends at least a 450 watt PSU. Looking at FSP power supplies online most of them are true 300 watt power supplies-as in they can maintain 300 watts, which is better then most, which is probably why your getting away with the 9400. Looking at the power consumption of the 3870 and your system, its FEASIBLE it would work, but not garenteed, and if it does work, it would definetly run your power supply unit at 100% or near 100% load, which will heat up the inside of your case, and will shorten the life of the PSU. I think I would if it were me either stick with the 9400 or another low end  card like that-or purchase a higher end PSU.

 

I'll tell her the situation and perhaps she will agree to buy a Corsair VS450. She has mentioned a new PC, but I don't know if she wants one now or not. Either way, I'd be getting a new PSU for her new system anyway (I never reuse PSUs unless they are of brands I trust highly) unless this FSP brand is really good. (I've personally never heard of them) If I were to reuse the FSP unit I'd probably also reuse the 9400.


"A lizard in the desert wouldn't eat that." ~Gordon Ramsay


#4 the_patriot11

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Posted 28 December 2015 - 08:34 PM

personally, ive never heard of it, but looking at the specs im impressed they can handle 300 watts continuously, thats usually only a feature you see on high end power supplies. But, 300 watt power supplies are next to worthless in todays market unless your using a OEM system unfortunatly. They just arnt powerful enough to handle much more then integrated graphics or very low end dedicated cards. Even the 450 is starting to become underpowered. I personally wont put anything less then a 500 watt into any build I do, its typically higher then that.


picard5.jpg

 

Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#5 Karzahni

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Posted 28 December 2015 - 08:43 PM

I'm picking out parts on newegg to see what kind of wattage I might need. Then I will know what PSU I will eventually need anyway.

 

The new system (according to eXtreme) reports a recommended wattage of 300 with the 9400, and 340 with the 3870. Looks like I will be getting a new PSU for her new system anyway. The 450 should be sufficient shouldn't it?


Edited by Karzahni, 28 December 2015 - 08:47 PM.

"A lizard in the desert wouldn't eat that." ~Gordon Ramsay


#6 the_patriot11

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Posted 28 December 2015 - 08:49 PM

in theory yes, but im wondering about the accuracy of your power supply calculator, I would use the one from newegg personally. I trust that one.


picard5.jpg

 

Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.





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