Can my 350W psu run a R9 270?

[azX_]

hi guys, the PSU and R9 270 in question a no-name PSU, a sapphire Dual-X R9 270 (I already have this with me)

 

PC Specs

Core 2 Quad Q8300 (i know it will bottleneck)

GT 640

Acer G41T-AM

6GB DDR2

Western Digital Blue 1TB

Western Digital Blue 640GB

 

it has a 6 pin built in, so i won't need any molex to 6pin or sata to 6pin adapters.

advertised power is 450W but true power is 350W (did confirm this with seller), on the 12V rails, 10A and 13A respectively. (also confirmed this with seller)

seller says it can support a GTX 550 Ti but that was a long time ago, i can't contact the seller anymore mainly because i can't find his name on my local 'amazon-ish' website

 

 

 

 

 

 

[♠FlamieMeister♠]

4 minutes ago, azX_ said:

hi guys, the PSU and R9 270 in question a no-name PSU, a sapphire Dual-X R9 270 (I already have this with me)

 

PC Specs

Core 2 Quad Q8300 (i know it will bottleneck)

GT 640

Acer G41T-AM

6GB DDR2

Western Digital Blue 1TB

Western Digital Blue 640GB

 

it has a 6 pin built in, so i won't need any molex to 6pin or sata to 6pin adapters.

advertised power is 450W but true power is 350W (did confirm this with seller), on the 12V rails, 10A and 13A respectively. (also confirmed this with seller)

seller says it can support a GTX 550 Ti but that was a long time ago, i can't contact the seller anymore mainly because i can't find his name on my local 'amazon-ish' website

 

 

 

 

 

 

Ive tried it on a 350w psu, and it burned out the power supply. Youll defintely need a better psu.

[knightslugger]

how many amps are available on the 12v rail?

[♠FlamieMeister♠]

Also welcome to the 270 master race lol

[BlueChinchillaEatingDorito]

6 minutes ago, azX_ said:

-snip-

It probably could... but won't last long. (i.e. the PSU is going to crap out very soon).

[dizmo]

If you're thinking about buying it, then no, I'd spend money on something better.

[Streetguru]

23 minutes ago, azX_ said:

 

I wouldn't advise buying a machine that old

What's your budget/country? Is this going to be your only PC or a spare PC?
 

[azX_]

7 hours ago, knightslugger said:

how many amps are available on the 12v rail?

12V1 10A 12V2 13A

[azX_]

7 hours ago, Streetguru said:

I wouldn't advise buying a machine that old

What's your budget/country? Is this going to be your only PC or a spare PC?
 

it's my current pc, i already have all the parts

[orbitalbuzzsaw]

4 minutes ago, azX_ said:

it's my current pc, i already have all the parts

Even if it could run a 270, whatever 350w you have is almost certainly a blast risk. Get a new one either way

[Streetguru]

13 minutes ago, azX_ said:

it's my current pc, i already have all the parts

Then probably just replace the PSU if it's not proprietary as soon as you get a chance.

[azX_]

23 minutes ago, orbitalbuzzsaw said:

Even if it could run a 270, whatever 350w you have is almost certainly a blast risk. Get a new one either way

 

14 minutes ago, Streetguru said:

Then probably just replace the PSU if it's not proprietary as soon as you get a chance.

I do have an extra power supply, a 500W unit one (branded), the 12v rail most likely has more than 40A, however this power supply brought down a motherboard before, an ASUS Z77 m-atx. The PSU fan was spinning though. Worth to try?

[Streetguru]

1 minute ago, azX_ said:

 

I do have an extra power supply, a 500W unit one (branded), the 12v rail most likely has more than 40A, however this power supply brought down a motherboard before, an ASUS Z77 m-atx. The PSU fan was spinning though. Worth to try?

If it killed a motherboard you should just throw it in the trash

[Stefan Payne]

9 hours ago, ♠FlamieMeister♠ said:

Ive tried it on a 350w psu, and it burned out the power supply. Youll defintely need a better psu.

Maybe because you used an ancient 350W PSU or it was garbage from the beginning...

 

So your statement is false.

A good 350W would be enough. 

Your PSU either wasn't a good one or a +5V heavy one with 30A on +5V and 18A on +12V (max). Or not a good one.

 

10 hours ago, azX_ said:

hi guys, the PSU and R9 270 in question a no-name PSU,

 

What PSU is it exactly?
How old?

 

2 hours ago, azX_ said:

12V1 10A 12V2 13A

Manfufacturer?
Product Name?

+12V Combined Power or Current??

Max Amperage on +5V and +3,3V Rail? Incl. Combined Power?

Age?

[Stefan Payne]

2 hours ago, orbitalbuzzsaw said:

Even if it could run a 270, whatever 350w you have is almost certainly a blast risk. Get a new one either way

How can you say that without knowing what 350W PSU he has?!

There are differences with those as there are with any other as well.

 

There are some decent ones and there are some really shitty ones.

There are some +12V heavy ones, there are some +5V heavy ones.

 

 

With the Information we have right now, we can not come to any conclusion. All we can say is that we need more information about the PSU.

 

That it is advertized with two rails is a good sign because it points in the direction of a more modern OEM design.

 

But we still need the Infos of the Label, who made the PSU what he means with 'no-name'. 

In best case scenarios it is something like Liteon or Delta. Both are pretty good.

 

 

The only Question is the Age...

[azX_]

2 minutes ago, Stefan Payne said:

How can you say that without knowing what 350W PSU he has?!

There are differences with those as there are with any other as well.

 

There are some decent ones and there are some really shitty ones.

There are some +12V heavy ones, there are some +5V heavy ones.

 

 

With the Information we have right now, we can not come to any conclusion. All we can say is that we need more information about the PSU.

 

That it is advertized with two rails is a good sign because it points in the direction of a more modern OEM design.

 

But we still need the Infos of the Label, who made the PSU what he means with 'no-name'. 

In best case scenarios it is something like Liteon or Delta. Both are pretty good.

 

 

The only Question is the Age...

its fairly new, only a month old. I think it's far from OEM. Maybe I'm wrong. 

[Stefan Payne]

2 minutes ago, azX_ said:

its fairly new, only a month old. I think it's far from OEM. Maybe I'm wrong. 

OK, I retract everything I said...

 

You should get a new, better quality one.

A decent 350W system from a named brand like FSP, HEC/Compucase/Cougar or so should be enough and OK for your system.

 

Your PSU is of unknown quality and the product label on the PSU is garbage - wich means that whatever is inside is probably of the same quality as the label...

[awesomegamer919]

3 hours ago, Stefan Payne said:

How can you say that without knowing what 350W PSU he has?!

There are differences with those as there are with any other as well.

 

There are some decent ones and there are some really shitty ones.

There are some +12V heavy ones, there are some +5V heavy ones.

 

 

With the Information we have right now, we can not come to any conclusion. All we can say is that we need more information about the PSU.

 

That it is advertized with two rails is a good sign because it points in the direction of a more modern OEM design.

 

But we still need the Infos of the Label, who made the PSU what he means with 'no-name'. 

In best case scenarios it is something like Liteon or Delta. Both are pretty good.

 

 

The only Question is the Age...

Other than said Delta/Liteon designs, there aren't really any good 350w PSUs, by that point they are always Group Reg and skimp on build quality, given that 400w PSUs are hardly much more expensive...

[knightslugger]

10a*12v= 120w

13a*12v=156w

 

total maximum combined draw from the 12v rails is 276w. PCIe is limited to 75w IIRC. the rest will be delivered by the yellow connectors.

 

R9 270 at full load = 133w

 

you will be at about 50% load on the 12v rail with just the GPU. If the CPU sees a heavy load, let's say 95w, you are 8% from maximum draw on the 12v rail, a very dangerous place to be.

 

You'd probably be OK for heavy loads on the GPU or CPU (ONE AT A TIME, NOT TOGETHER), but i would not be surprised if that thing just says fuck it and destroys itself, and takes a few friends along with it (MB, GPU, ...well, anything and everything connected to it is likely going to suffer failure).

 

highly recommend you get a beefier PSU, 500w or better.

[Stefan Payne]

2 hours ago, knightslugger said:

10a*12v= 120w

13a*12v=156w

 

total maximum combined draw from the 12v rails is 276w.

You can't do it that way.

 

Because the Current of the Transformer is limited via Resistors and protection Chip. 

With a good PSU you can have things like added Amperage of all rails is double of the combined amperage.

So adding it is impossible,

If +12V1 and +12V2 = +12V combined, you know that its a shitty PSU - 500W Aurum for example.