can but very troublesome since you need to power the gpu's psu first with another added switch or pin and then only can turn on the other psu...

Ok, that can be done.

I want to ask. If let's say a R7 240. It is 50W GPU without the need of 6 pin PSU connector.

I have A68N-5000 board with AMD A4-5000. The TDP also around 30W.

Total power tdp = 50W + 30W = 80W.

Will it work with 150W PSU running at 78% efficiency?

I saw 4 PIN connector on the board which I assume is powering the PCI-E 4X lane?

I believe its quite dangerous because TDP above does not assume MAX TDP when both CPU and GPU is 100% loaded.

So my question is, will it be more safe to run a GPU like AMD R9 280X with 2nd PSU 6 pin power?

Please help me choose:-

1) A68N-5000 + R7 240 with 150W PSU
2) A68N-5000 + R9 280X with 150W PSU + 2nd 400W PSU (R9 280X is just example. I will use lower end GPU of course lol)

Quality PSU can put out the rated wattage without regard to which rail.
For example my Seasonic X-850 can put out 850 watts just on the 12V rails. 150W PSU with 78% efficiency doesn't mean it can only put out 117W power, but means they can put out 150W to computer's components but pulls 192W from the wall socket.
If I have to choose better run one PSU only. Good 450-550W PSU is cheap now.

Cheap PSU are rated differently and usually combined wattage of 3.3V, 5V and 12V. The 12 V rails is probably alot less wattage than rated.

It's better to get higher wattage PSU because PSU degrades over time. Also the components that are rated as 30W, 50W is the average power consumption, the power consumption is actually goes up and down very fast in miliseconds. The peak power usage may go over the amount and the PSU may not be able to handle it.
I faced the same problem when I was using my old Cooler Master Extreme 2 625, it can only supply ATX rated power until 480W, and after 1 year of usage my computer always crashes even when the GPU was idling. Then I switched to Seasonic and very stable now.
I put the Cooler Master PSU on AMD II X4 635 + HD5830 and it's running fine.

This post has been edited by terradrive: Jan 16 2015, 10:55 AM

Thanks for explaning the rating.

Actually my problem is I'm running HTPC and I have Flex PSU by FSP installed. I think FSP is ok brand.

Since it is HTPC, I can't really install SFX PSU with 450W rating. I can probably get a 200W Flex PSU but it is still not enough. Or maybe I can get a 200W Pico PSU running together with my Flex 150W PSU with total 350W.

with that setting i got same average fps when i set Tesselation Very high... suspicious? yes it is... ONLY time i get 62 Fps when i set Tesselation OFF then i get Average FPS improve.. but far off from their score.. how hell they able to get 76.6 FPS on reference.. is mystery.. they should show their Metro LL setting...

so this what r9 390/ 390X looks...

http://videocardz.com/amd/radeon-rx-300/radeon-r9-390x

I hope that is not the real specifications.

Just take that with a huge grain of salt...

I think they got the specs somewhere from random sites.

dont feed the rumours yoh

eh so check my bank got bonus... end this week got pay.. and 9th feb get pay... (early cause of china new year) ... so... AMD R9 3XX WHERE ARE YOU!!!!

boss worth selling gtx 970 and get AMD R9 3xx series instead ?

Guys, help meeee
i got BSoD, and i saw 'atikmpag.sys'
seems like GPU related, help me

eh.. you want me to answer you with my AMD R9 Fan brain or Fair/logic brain.. ? lolx
x
you just buy your Gpu.. GTX 970 is best bang Money/Performance Faster than GTX 780/R9 290 and make no sense to go R9 3XX when is not yet out the performance data not yet clear.. bett be happy with what you got..

are u having issues going to window ? what win ? when this happen what your doing e.g. game or watching youtube ? what version AMD CCC driver ?

i able to go into windows, mine windows 7 64bit
it usually occur during gaming, sometimes browsing.
i'm using the latest OMEGA driver.

p/s: no OC on mboard, neither GPU.

This post has been edited by matni01: Jan 18 2015, 04:04 PM

download latest DDU use recommended setting, (remove driver in safe mode) downloand new from internet Omega driver install again . i suspect a driver corruption.. good luck

whats your gpu?

my GPU is Sapphire R9 270x Dual-X 2GB

Another day, another leak?

http://wccftech.com/amd-radeon-r9-300-gpu-...chmarks-leaked/


Note: may be fake - the score is pretty much unheard of for a single GPU..

Though Chiphell can be pretty accurate in terms of rumors...

Anyone interested on a RM1200 290X Lightning?

https://forum.lowyat.net/index.php?showtopic=3341641&hl=