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The RX Vega 64 Owners Thread

AmateurExpert said:
No. In fact it's better to use a single-rail design as you don't have to worry about which PSU outputs/cables to use to load the rails optimally. Specs-wise that Corsair ought to be fine.

Out of interest, what was your old PSU?
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Thank you very much for the advice there, I'd forgotten about psu's when i made this pc i just used the old one from my amd rig with a 7970, silly me.
 
Illuminist said:
That is very good advice thank you, i was wondering how to test a psu without having to unravelled my painstaking cable management and re do it every time
The plug and fuse were fine the psu had popped, it was over 2 1/2 years old and i guess the efficiency had reduced to such a low that a max power draw on it made it cry and die.

My question is... i'm going to buy a new PSU in about 2 hours after work (because my day off tomorrow and no way im not having a pc)
Does it need to have more than one rail for a vega?
I'm going for a corsair cx750m bronze as its the only one in any of the local shops that is half way decent. But it has a single rail, can someone please let me know if this will be ok for a week or so for my regular gaming/mining until i get a 1000w gold?

Thank you in advance for the help.

i5 6600k
vega 56 (64 bios)
16gb 2666 ram
1 hdd
1 ssd
liquid cooled gpu closed loop
liquid cooled cpu closed loop
For power purposes.
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to be honest your going to need an 850w for that having the psu running about 70-80%.. why people buy just what they need is beyond me and have there psu run at 90-100% load all the time ..
and they wonder why it go's pop after a few yrs ..
 
@Illuminist
I should add - it's possible that your PSU failure was down to a manufacturing defect, a failure caused by component degradation through high usage (or old age), or an external factor such as a power surge on the AC input.

That said - I have no had no problems with my 600W PSU powering my Vega 64 24/7 (typically 20-60% load) for many months now. It wasn't a PSU I bought specifically for this build though.
 
flea.rider said:
to be honest your going to need an 850w for that having the psu running about 70-80%.. why people buy just what they need is beyond me and have there psu run at 90-100% load all the time ..
and they wonder why it go's pop after a few yrs ..
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To be fair, if he's mining on it, a Vega 56 wouldn't load a 700W PSU up to 90-100%. If mining cryptonight they should draw around 160W, so total system draw should be 200-300W, well within spec of a 700W PSU and actually in the sweet spot for efficiency.
 
AmateurExpert said:
To be fair, if he's mining on it, a Vega 56 wouldn't load a 700W PSU up to 90-100%. If mining cryptonight they should draw around 160W, so total system draw should be 200-300W, well within spec of a 700W PSU and actually in the sweet spot for efficiency.
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It is cryptonight, and its bios modded to a 64 and liquid cooled closed loop.

I agree the Psu had just rotted away over the 2+ years and just gave up and popped, though i had a surge proctection strip but i think that one is downstairs, i will have to swap them around after this, it terrified me that cpu motherboard ram vega all got fried during this.

I will upgrade to a 1000w gold or platinum in a couple of weeks so i'm covered for the next build as well as safe for this.
You guys are awesome thank you so much.
 
My 750W seasonic prime has no issues dealing with both an overclocked threadripper and vega 56 running flat out. Top whack it draws around 600W, with everything running flat out folding. I had no issues with my 8 year old corsair tx650 whilst running threadripper with my old GTX780 either. I only went with the 750W supply as I wanted to move from bronze efficiency to platinum
 
Kei said:
My 750W seasonic prime has no issues dealing with both an overclocked threadripper and vega 56 running flat out. Top whack it draws around 600W, with everything running flat out folding. I had no issues with my 8 year old corsair tx650 whilst running threadripper with my old GTX780 either. I only went with the 750W supply as I wanted to move from bronze efficiency to platinum
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and you sir prove my point ...The PRIME Titanium Series achieves the highest level of 80 PLUS® Titanium certification on the market with its 94 % efficiency at 50 % system load
would you drive your car at 80-85% of it's max speed all the time ? no it would last half the time it's supposed to

even tho these certs mean nothing in real terms even in monetary terms it's only a few quid
 
98% of the time my system draws under 75W as it's pretty much idle. There are virtually no day to day tasks that my system performs that push it hard enough to draw more than 500W. Stress testing and folding are about the only ones that could. Even if the GPU is running at full pelt playing a game drawing around 275W, the cpu is barely breaking a sweat drawing around 125W. during encoding and editing which utilises both the cpu and gpu, I still don't see much above 400W draw which if I'm not mistaken is just over 53% load.
 
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Illuminist said:
I'm going for a corsair cx750m bronze as its the only one in any of the local shops that is half way decent. But it has a single rail, can someone please let me know if this will be ok for a week or so for my regular gaming/mining until i get a 1000w gold?
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Yes, in fact it would be fine indefinitely for that system, though there's nothing ever wrong with overkill and the 1000w would give you plenty of headroom to go crossfire down the line.
 
ubersonic said:
Yes, in fact it would be fine indefinitely for that system, though there's nothing ever wrong with overkill and the 1000w would give you plenty of headroom to go crossfire down the line.
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So after replacing the psu on my system with the aforementioned 750, my pc would turn off under load. I have tried under volting the vega with power saver and manually and instead the pc would freeze completely requiring a hard reset.
When it was just turning off with default settings the power button would not work, i would have to turn off the power supply for 5 -10 seconds then turn it back on for the power button to switch on the machine...........
I'm at a loss now as the system was working the best it ever had until the psu died, and all i have changed is the psu from a 700 to a 750... is something affected by the psu dying? i have no idea where to go from here.

I dont want to replace a part only to find out its a different part and go through that merry dance, i could end up replacing everything before i find the cause...
 
Illuminist said:
So after replacing the psu on my system with the aforementioned 750, my pc would turn off under load. I have tried under volting the vega with power saver and manually and instead the pc would freeze completely requiring a hard reset.
When it was just turning off with default settings the power button would not work, i would have to turn off the power supply for 5 -10 seconds then turn it back on for the power button to switch on the machine...........
I'm at a loss now as the system was working the best it ever had until the psu died, and all i have changed is the psu from a 700 to a 750... is something affected by the psu dying? i have no idea where to go from here.

I dont want to replace a part only to find out its a different part and go through that merry dance, i could end up replacing everything before i find the cause...
Click to expand...

Have you tried resetting your BIOS back to defaults? Make sure your CPU and RAM are a stock settings first to check everything is OK, and only then start working any overclocks back on.
 
Illuminist said:
So after replacing the psu on my system with the aforementioned 750, my pc would turn off under load. I have tried under volting the vega with power saver and manually and instead the pc would freeze completely requiring a hard reset.
When it was just turning off with default settings the power button would not work, i would have to turn off the power supply for 5 -10 seconds then turn it back on for the power button to switch on the machine...........
I'm at a loss now as the system was working the best it ever had until the psu died, and all i have changed is the psu from a 700 to a 750... is something affected by the psu dying? i have no idea where to go from here.

I dont want to replace a part only to find out its a different part and go through that merry dance, i could end up replacing everything before i find the cause...
Click to expand...

Thought I might find you in here :) - There really is only one solution, nuke it from orbit!
 
Worth downloading the latest 18.3.4 drivers. Just ran a Time Spy test with my usual 'everyday' overclock and got my highest ever graphics score of 8245. My previous best was 8149 although that was back in the August 18.2.1 drivers and my average score since then has been closer to 8000.
 
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