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[Guru3D]Sapphire Radeon RX 480 Nitro - Page 86

post #851 of 860
Hey guys, i am trying to find information about the VRM on the Nitro and the best i can find is pictures with 6 phases stating that the retail will have 5 phases only.

Do we have any information about this?

I know MSI were planning to do 4+2 for the gaming x but ended up doing 6+2 on it right before the release.

i can see Kit guru review stating that the Nitro 470 is 5+2 but the PCB on the picture is nor rly 5+2
http://www.kitguru.net/components/graphic-cards/zardon/sapphire-rx-470-nitro-oc-4gb-review/2/

and their review on the 480 rx nitro states 6+2 yet the picture looks to not be 6+2
http://www.kitguru.net/components/graphic-cards/zardon/sapphire-rx-480-nitro-oc-4gb-8gb-review/3/
they are confirming that the 4 GB model had 6+2 but the 8 GB had 5+2 and calling sapphire they state that on the 4GB 6+2 one of the GPU VRM is bios disabled and the PCB was from pre production so the card will be 5+2 VRM


Is that correct? Do we have an owner of a Nitro RX 480 that can confirm.
Edited by slavovid - 8/15/16 at 2:33am
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post #852 of 860
I just got my RX 480 Nitro 4gig today and popped the card in but i'm experiencing some weird rattle noise under load plus Coil whine.. The noise stops when manually stopping the fan with my hand so obviously it is being caused by one of the fans on the card

like the one in this video

https://www.youtube.com/watch?v=yvKwtCtbwoM
Edited by qwerty drive - 9/1/16 at 6:39pm
post #853 of 860
Sounds like electric noise. Probably bad QC on the fans, again.
post #854 of 860
Anyone knows differences between 480 nitro+ 8B Lite / Normal / OC ?(excepted frequencies)

chip quality ?
components ?

Or subject has already been discussed ?
 
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post #855 of 860
Quote:
Originally Posted by ConnorMcLeod View Post

Anyone knows differences between 480 nitro+ 8B Lite / Normal / OC ?(excepted frequencies)

chip quality ?
components ?

Or subject has already been discussed ?

I don't have an answer but I'll tell you what mine is.

480 Nitro+ 8gb 1342 mhz and has an ASIC of 80%. It's the best 480 I've has so far, this being my 3rd.

It's a tad warm like most but for the heck of it I moved the clock up to 1400 and it didn't phase the card whatsoever.

Anyway, I'd mainly like to see other versions and their ASIC. While ASIC doesn't mean better or worse clocks, it does make a difference on the voltage and temps created at said clocks.
post #856 of 860
Quote:
Originally Posted by iRUSH View Post

I don't have an answer but I'll tell you what mine is.

480 Nitro+ 8gb 1342 mhz and has an ASIC of 80%. It's the best 480 I've has so far, this being my 3rd.

It's a tad warm like most but for the heck of it I moved the clock up to 1400 and it didn't phase the card whatsoever.

Anyway, I'd mainly like to see other versions and their ASIC. While ASIC doesn't mean better or worse clocks, it does make a difference on the voltage and temps created at said clocks.

I just posted this on another thread haha, my ASIC on my Sapphire RX470 Nitro+OC 8Gb is 88%

So far I've kept it stock, except a custom fan curve that isnt' very far off from stock. Peaks at 76-78C Idles at 48-52C - max fan useage is usually only around 60-65%.

And that random spike of 320W draw...



    
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post #857 of 860
post #858 of 860

Those High Temps should be relevant to high ASIC.I saw some cards with 84'c at peak, So What Percentage is ASIC for that temp ? 95%?

post #859 of 860
Quote:
Originally Posted by Xuper View Post

Those High Temps should be relevant to high ASIC.I saw some cards with 84'c at peak, So What Percentage is ASIC for that temp ? 95%?

Probably, anything 80 and up seems to get hot and hungry power wise. Ideally you get a lower ASIC for Polaris.
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post #860 of 860
Quote:
Originally Posted by Xuper View Post

Those High Temps should be relevant to high ASIC.I saw some cards with 84'c at peak, So What Percentage is ASIC for that temp ? 95%?

88.8% if I set a decent fan curve the temps can stay down. They usually never go above 66% and that's only ever briefly so I still have a little room.
    
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