Will 470W with 12V@18 amp cut it for R7-265?
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Sapphire
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Graphics
Last response: in Graphics & Displays
DTMATM
April 24, 2014 4:03:46 AM
Hi all you learned folk
I have just received my Sapphire R7-265 but am not sure if my 470w PSU with 18A on the 12V rail (its old and pretty cheap by the looks of it) will handle it.
A friend said it should be fine, but Im a little worried.Id love to be able to try it tonight and I wouldnt be able to get a new PSU for about a week
Cheers
I have just received my Sapphire R7-265 but am not sure if my 470w PSU with 18A on the 12V rail (its old and pretty cheap by the looks of it) will handle it.
A friend said it should be fine, but Im a little worried.Id love to be able to try it tonight and I wouldnt be able to get a new PSU for about a week
Cheers
More about : 470w 12v amp cut 265
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Reply to DTMATM
Best solution
unknownofprob
April 24, 2014 4:13:28 AM
EasyLover
April 24, 2014 4:15:10 AM
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theadler
April 24, 2014 4:15:26 AM
Requirements for that card are 500w minimum.
http://www.sapphiretech.com/presentation/product/?cid=1...
http://www.sapphiretech.com/presentation/product/?cid=1...
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DTMATM
April 24, 2014 4:26:54 AM
unknownofprob said:
you need 20A with 12V rail with 400W, you don't meet the requirements, you'll need a new PSU with 20A or above, with the meeting of the other requirements also.I would suggest a 500W PSU, just for headroom.
EasyLover said:
This card requires 150W so 450W PSU should handle it. However, to be certain, complete specs of your systems would be helpful.Regards,
Specs are
A8-3850
16gb ram guessing just bog standard
2tb HDD
PSU is Codegen ATX2.03(P4)
Im thinking I may just have to patient and wait till next week as the general consensus seem to be that I may fry something
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Poprin
April 24, 2014 4:38:04 AM
An R7-265 pulls in the region of 50w at idle and 180-210w at full load. You PSU (in theory) should run 216w across it's 12v rail based on a standard calculation (Watts = Amps x Volts) based on your statement above (18amps over 12v rail)
So in theory the PSU will power the card, in practice if it is a) old, b) a bit pants then it might not. This may happen in two ways, most likely you will try to put the card under load and the machine will power off. Or it fries the card, but that is probably unlikely...
Actually massive edit to the above (most be having a long day) that's 216w total power across your 12v rail. So, no I don't think it will work because of course you are powering the rest of your computer also. I would wait for the new PSU in that case!!
So in theory the PSU will power the card, in practice if it is a) old, b) a bit pants then it might not. This may happen in two ways, most likely you will try to put the card under load and the machine will power off. Or it fries the card, but that is probably unlikely...
Actually massive edit to the above (most be having a long day) that's 216w total power across your 12v rail. So, no I don't think it will work because of course you are powering the rest of your computer also. I would wait for the new PSU in that case!!
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ShadyHamster
April 24, 2014 4:41:09 AM
DTMATM said:
unknownofprob said:
you need 20A with 12V rail with 400W, you don't meet the requirements, you'll need a new PSU with 20A or above, with the meeting of the other requirements also.I would suggest a 500W PSU, just for headroom.
EasyLover said:
This card requires 150W so 450W PSU should handle it. However, to be certain, complete specs of your systems would be helpful.Regards,
Specs are
A8-3850
16gb ram guessing just bog standard
2tb HDD
PSU is Codegen ATX2.03(P4)
Im thinking I may just have to patient and wait till next week as the general consensus seem to be that I may fry something
400w will be fine to power that system.
My FX8320 at 4.2ghz + 2 HD5870's (crossfire of course) barely pulls 450w from the wall looping unigine valley benchmark.
According to this:
http://www.tomshardware.com/charts/2014-vga-charts/23-P...
The 265 pulls 99w, so add 100w max for the cpu and the system usage would be around 200w, give or take, i doubt it would pull 300w even at 100% load.
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Poprin
April 24, 2014 4:44:52 AM
ShadyHamster said:
DTMATM said:
unknownofprob said:
you need 20A with 12V rail with 400W, you don't meet the requirements, you'll need a new PSU with 20A or above, with the meeting of the other requirements also.I would suggest a 500W PSU, just for headroom.
EasyLover said:
This card requires 150W so 450W PSU should handle it. However, to be certain, complete specs of your systems would be helpful.Regards,
Specs are
A8-3850
16gb ram guessing just bog standard
2tb HDD
PSU is Codegen ATX2.03(P4)
Im thinking I may just have to patient and wait till next week as the general consensus seem to be that I may fry something
400w will be fine to power that system.
My FX8320 at 4.2ghz + 2 HD5870's (crossfire of course) barely pulls 450w from the wall looping unigine valley benchmark.
According to this:
http://www.tomshardware.com/charts/2014-vga-charts/23-P...
The 265 pulls 99w, so add 100w max for the cpu and the system usage would be around 200w, give or take, i doubt it would pull 300w even at 100% load.
Yes but a power supply's rated power is not as simple as what it pulls at the socket. Not by a long shot, it depends how many 12v rails it has, how much of the rated power output is dedicated to 12v / 5v / etc plus many other factors!
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DTMATM
April 24, 2014 4:48:44 AM
ShadyHamster said:
DTMATM said:
unknownofprob said:
you need 20A with 12V rail with 400W, you don't meet the requirements, you'll need a new PSU with 20A or above, with the meeting of the other requirements also.I would suggest a 500W PSU, just for headroom.
EasyLover said:
This card requires 150W so 450W PSU should handle it. However, to be certain, complete specs of your systems would be helpful.Regards,
Specs are
A8-3850
16gb ram guessing just bog standard
2tb HDD
PSU is Codegen ATX2.03(P4)
Im thinking I may just have to patient and wait till next week as the general consensus seem to be that I may fry something
400w will be fine to power that system.
My FX8320 at 4.2ghz + 2 HD5870's (crossfire of course) barely pulls 450w from the wall looping unigine valley benchmark.
According to this:
http://www.tomshardware.com/charts/2014-vga-charts/23-P...
The 265 pulls 99w, so add 100w max for the cpu and the system usage would be around 200w, give or take, i doubt it would pull 300w even at 100% load.
But I only have a max 216w to play with so at 100% load around 300w thats well beyond 216w,
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DTMATM
April 24, 2014 4:51:21 AM
Poprin
April 24, 2014 5:32:55 AM
ShadyHamster said:
DTMATM said:
unknownofprob said:
you need 20A with 12V rail with 400W, you don't meet the requirements, you'll need a new PSU with 20A or above, with the meeting of the other requirements also.I would suggest a 500W PSU, just for headroom.
EasyLover said:
This card requires 150W so 450W PSU should handle it. However, to be certain, complete specs of your systems would be helpful.Regards,
Specs are
A8-3850
16gb ram guessing just bog standard
2tb HDD
PSU is Codegen ATX2.03(P4)
Im thinking I may just have to patient and wait till next week as the general consensus seem to be that I may fry something
400w will be fine to power that system.
My FX8320 at 4.2ghz + 2 HD5870's (crossfire of course) barely pulls 450w from the wall looping unigine valley benchmark.
According to this:
http://www.tomshardware.com/charts/2014-vga-charts/23-P...
The 265 pulls 99w, so add 100w max for the cpu and the system usage would be around 200w, give or take, i doubt it would pull 300w even at 100% load.
I don't understand the link from Toms, 99w?? Their own review states the TDP of that card is 150w
http://www.tomshardware.com/reviews/radeon-r7-265-revie...
Generally CPU's and GPU's will pull more than their TDP under full load also, especially when overclocked.
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Poprin
April 24, 2014 5:36:41 AM
DTMATM said:
oh and I know it probably wont make a difference but im only running a 1680x1050 monitor so it shouldnt push the card to hard, Id love to try it, but I know if something serious goes wrong my wife will kill me! Oh and its a single rail
This may not be the same PSU as yours exactly but it looks close, makes for concerning reading:
http://www.anandtech.com/show/5791/codegen-pcase-460w-l...
I would personally hang on for that power supply man, especially if your PSU doesn't have adequate voltage / power correction you could genuinely damage something.
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theadler
April 24, 2014 10:23:43 AM
Poprin said:
ShadyHamster said:
DTMATM said:
unknownofprob said:
you need 20A with 12V rail with 400W, you don't meet the requirements, you'll need a new PSU with 20A or above, with the meeting of the other requirements also.I would suggest a 500W PSU, just for headroom.
EasyLover said:
This card requires 150W so 450W PSU should handle it. However, to be certain, complete specs of your systems would be helpful.Regards,
Specs are
A8-3850
16gb ram guessing just bog standard
2tb HDD
PSU is Codegen ATX2.03(P4)
Im thinking I may just have to patient and wait till next week as the general consensus seem to be that I may fry something
400w will be fine to power that system.
My FX8320 at 4.2ghz + 2 HD5870's (crossfire of course) barely pulls 450w from the wall looping unigine valley benchmark.
According to this:
http://www.tomshardware.com/charts/2014-vga-charts/23-P...
The 265 pulls 99w, so add 100w max for the cpu and the system usage would be around 200w, give or take, i doubt it would pull 300w even at 100% load.
I don't understand the link from Toms, 99w?? Their own review states the TDP of that card is 150w
http://www.tomshardware.com/reviews/radeon-r7-265-revie...
Generally CPU's and GPU's will pull more than their TDP under full load also, especially when overclocked.
The previous link at tom's I believe is showing the rated specs per card manufacturer, and the later shows tom's test results.
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