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Graphic card for a FX 6300 with a San 55 s 550w PSU (Bronze)

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  • Power Supplies
  • Bottleneck
  • Graphics Cards
  • Components
Last response: in Components
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October 15, 2014 10:58:37 AM

Hello Guys.

I saw a lot of things here that helped me, but this time I must ask.

I have a FX 6300 @ 3.5Ghz with 8gb ram 1600Mhz and a WD Blue 1tb. I want to replace my R7 250 (no X) with a R9 270x or maybe a GTX 970. Can I? What do you think?

The PSU has dual rail +12v with 18A, so I guess I have 32A there.

Right now I'm gaming at 768p but I want to jump to 1080p if it is possible.

Thanks and greetings from Argentina!

More about : graphic card 6300 san 550w psu bronze

a c 2466 ) Power supply
a c 919 U Graphics card
October 15, 2014 11:12:57 AM

What PSU make and model?
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a c 166 ) Power supply
a c 333 U Graphics card
October 15, 2014 11:21:53 AM

18 + 18 = 36, not 32
But the total amperage is based on the wattage those rails are capable of delivering. Sometimes you can't simply add the rails amps.
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October 15, 2014 11:26:39 AM

clutchc said:
18 + 18 = 36, not 32
But the total amperage is based on the wattage those rails are capable of delivering. Sometimes you can't simply add the rails amps.


I saw that the real amperage with dual rail was 12v1 + 12v2 - 11%. That's why I said 32. The rails delivers 340w, so I'm getting 28A then :/ 

I'ts a Vitsuba san 55 s 550w 80 plus Bronze.

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a c 166 ) Power supply
a c 333 U Graphics card
October 15, 2014 11:42:05 AM

BrianE said:
clutchc said:
18 + 18 = 36, not 32
But the total amperage is based on the wattage those rails are capable of delivering. Sometimes you can't simply add the rails amps.


I saw that the real amperage with dual rail was 12v1 + 12v2 - 11%. That's why I said 32. The rails delivers 340w, so I'm getting 28A then :/ 

I'ts a Vitsuba san 55 s 550w 80 plus Bronze.



OK. Good. You are aware of what I meant then. If this is your PSU: http://www.taringa.net/comunidades/serviciotecnico/8508...
...I'm not familiar with that make. But it appears to be good quality and can meet its requirements for the 145W gfx card and the 95W CPU.
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a c 1217 ) Power supply
a c 578 U Graphics card
October 15, 2014 12:13:06 PM

A maximum combined +12V rail rating of 28 Amps for a 550 Watt PSU is quite poor. A good 550W PSU would have a maximum combined +12V rail rating of 45 Amps.

If that PSU only comes with one PCI Express supplementary power connector then for sure it's not sufficient for a Radeon R9 270X since a Reference Design Radeon R9 270X requires two 75 Watt 6-pin PCI Express supplementary power connectors. It's also insufficient for a GeForce GTX 970 that also requires at least two 75 Watt 6-pin PCI Express supplementary power connectors

Vitsuba has used Andyson as the OEM in the past for a PSU with that exact same model number.

I don't see that PSU in the 80 PLUS certification database.

This seller says it only comes with one 6-pin PCI Express supplementary power connector:
http://www.preciolandia.com/ar/fuente-vitsuba-550w-real...
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October 15, 2014 6:39:59 PM

ko888 said:
A maximum combined +12V rail rating of 28 Amps for a 550 Watt PSU is quite poor. A good 550W PSU would have a maximum combined +12V rail rating of 45 Amps.

If that PSU only comes with one PCI Express supplementary power connector then for sure it's not sufficient for a Radeon R9 270X since a Reference Design Radeon R9 270X requires two 75 Watt 6-pin PCI Express supplementary power connectors. It's also insufficient for a GeForce GTX 970 that also requires at least two 75 Watt 6-pin PCI Express supplementary power connectors

Vitsuba has used Andyson as the OEM in the past for a PSU with that exact same model number.

I don't see that PSU in the 80 PLUS certification database.

This seller says it only comes with one 6-pin PCI Express supplementary power connector:
http://www.preciolandia.com/ar/fuente-vitsuba-550w-real...


But the box includes a 2 molex to 6 pin connector. There is a reason to include it.. I think

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a c 1217 ) Power supply
a c 578 U Graphics card
October 15, 2014 7:22:10 PM

BrianE said:
ko888 said:
A maximum combined +12V rail rating of 28 Amps for a 550 Watt PSU is quite poor. A good 550W PSU would have a maximum combined +12V rail rating of 45 Amps.

If that PSU only comes with one PCI Express supplementary power connector then for sure it's not sufficient for a Radeon R9 270X since a Reference Design Radeon R9 270X requires two 75 Watt 6-pin PCI Express supplementary power connectors. It's also insufficient for a GeForce GTX 970 that also requires at least two 75 Watt 6-pin PCI Express supplementary power connectors

Vitsuba has used Andyson as the OEM in the past for a PSU with that exact same model number.

I don't see that PSU in the 80 PLUS certification database.

This seller says it only comes with one 6-pin PCI Express supplementary power connector:
http://www.preciolandia.com/ar/fuente-vitsuba-550w-real...


But the box includes a 2 molex to 6 pin connector. There is a reason to include it.. I think



The dual 4-pin Molex peripheral to 6-pin PCIe adapter power cable should only be used if the PSU has sufficient combined +12V capacity and an insufficient number of PCIe power connectors.

The fact that your supposed "550" Watt PSU only came with one 6-pin PCIe power connector is enough to say that its combined +12V capacity is insufficient.
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October 15, 2014 7:28:21 PM

ko888 said:
BrianE said:
ko888 said:
A maximum combined +12V rail rating of 28 Amps for a 550 Watt PSU is quite poor. A good 550W PSU would have a maximum combined +12V rail rating of 45 Amps.

If that PSU only comes with one PCI Express supplementary power connector then for sure it's not sufficient for a Radeon R9 270X since a Reference Design Radeon R9 270X requires two 75 Watt 6-pin PCI Express supplementary power connectors. It's also insufficient for a GeForce GTX 970 that also requires at least two 75 Watt 6-pin PCI Express supplementary power connectors

Vitsuba has used Andyson as the OEM in the past for a PSU with that exact same model number.

I don't see that PSU in the 80 PLUS certification database.

This seller says it only comes with one 6-pin PCI Express supplementary power connector:
http://www.preciolandia.com/ar/fuente-vitsuba-550w-real...


But the box includes a 2 molex to 6 pin connector. There is a reason to include it.. I think



The dual 4-pin Molex peripheral to 6-pin PCIe adapter power cable should only be used if the PSU has sufficient combined +12V capacity and an insufficient number of PCIe power connectors.

The fact that your supposed "550" Watt PSU only came with one 6-pin PCIe power connector is enough to say that its combined +12V capacity is insufficient.


Well I guess I'll go for R7 260x or 265. Thanks dude :) 

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October 17, 2014 6:16:26 AM

Umm hi again. I just forgot to say something. Here in Argentina a PSU (and all the stuff) use 220v to work. That change something?
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a c 1217 ) Power supply
a c 578 U Graphics card
October 17, 2014 8:43:56 AM

BrianE said:
Umm hi again. I just forgot to say something. Here in Argentina a PSU (and all the stuff) use 220v to work. That change something?


The input voltage to the PSU doesn't change anything.
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a c 166 ) Power supply
a c 333 U Graphics card
October 17, 2014 1:00:42 PM

BrianE said:
Umm hi again. I just forgot to say something. Here in Argentina a PSU (and all the stuff) use 220v to work. That change something?


No. Same output specs. Same results.
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