[Official] Polaris Owners Club - Page 19 - Overclock.net

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post #181 of 4367 Old 07-26-2016, 11:52 AM
 
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Ultimately rigged up my 480 using a Kraken bracket with broken Antec 620 pump/heatsink and plumbed it into my mini GPU loop.  I had (2) 120 AIOs lying around that were in good working order when they were last pulled from duty...the Antec 620 and a TT Water 2.0...BOTH of them skull.gif  shortly after hooking them up and running a couple benches.

Loop is only using 1/4" ID tubing, XSPC EX240 radiator, (2) SilenX Effizio thermistor fans, and an XSPX X20 420 mini pump/reservoir.




Squeezed an extra 55MHz out of it with the good core cooling.  Topped out at 1405/2250 with max default 1.15V and 50% power limit; extremely minor artifacting so this is the limit thus far.

Amazing thing is how cool the VRMs run with essentially no cooling.  I half-assedly stuck an Enzotech MST-66 on the rear of most, it doesn't touch all, of the VRMs.  Ran numerous Time Spy's consecutively and haven't seen VRM temps exceed 80C with my IR thermometer.  May drop some copper sinks on the front of the card since I have some unused ones hiding around here somewhere.

Time Spy @ 1405/2250 with Graphics Score 4519:  http://www.3dmark.com/3dm/13590472?





For whatever reason the CPU score suffered in that run a little bit.  Got a lower graphics, but slightly better overall, score @ 1400/2250:  http://www.3dmark.com/spy/145408

Maximum power consumption is down about 10W, according to GPU-Z, from my previous best runs with the reference cooler despite the additional clock speed.  I feel that putting the waterblock on will probably alleviate a little more room to push it further once the VRMs are nice and chilly.  As it is right now the core has maxed at 55C.  Core cooling will undoubtedly be superior with the waterblock, but adding heat from VRMs and RAM into the mix may offset the core temperature slightly.  These are results with the SilenX fans on "is my computer running?" mode, so there is some room to increase fan speed as well. 

Next will be some Doom testing.  Tried the 1405/2250 last night and only got about 20 minutes of play until I got a brown screen. Unfortunately I found out the hard way that Doom/Steam have an issue with corrupting your save files if your computer crashes while playing.  

Currently I have lost my 11 hours of progress...tried all the solutions I could find on various forums to no avail thus far  sozo.gif  

1400/2250 had a flawless Time Spy run, so I will try to dial down the few MHz and see if that makes a difference.  Going to try and get an average power consumption figure for Doom once I get the max playable OC nailed down.  Probably give it a go later tonight after doing a little work on my Integra. 

Try the BIOS posted in OP. For god sakes!!! Lol.

So interested to see if gains are had.

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post #182 of 4367 Old 07-26-2016, 12:09 PM
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Try the BIOS posted in OP. For god sakes!!! Lol.

So interested to see if gains are had.

Got the VRMs situated with some cooling and the 1400/2250 is absolutely stable in Doom at those speeds. Had a good 90 minute session last night and it never faultered once.

I'm going to try and push it further in it's current state with the VRMs cooled..possibly late tonight.

I still think I'm going to wait for the waterblock to mess with the unlocked BIOS. I'm somewhat concerned as XSPC site says the block is discontinued but AFAIK they never had any for sale yet, only pre-order.
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post #183 of 4367 Old 07-26-2016, 01:11 PM
 
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Got the VRMs situated with some cooling and the 1400/2250 is absolutely stable in Doom at those speeds. Had a good 90 minute session last night and it never faultered once.

I'm going to try and push it further in it's current state with the VRMs cooled..possibly late tonight.

I still think I'm going to wait for the waterblock to mess with the unlocked BIOS. I'm somewhat concerned as XSPC site says the block is discontinued but AFAIK they never had any for sale yet, only pre-order.

Understandable. Whare are the full covers for this thing?

A 1500mhz 480 would make a great system for a great price.

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post #184 of 4367 Old 07-26-2016, 01:17 PM
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Understandable. Whare are the full covers for this thing?

A 1500mhz 480 would make a great system for a great price.

 

EK's blocks are out, but I really don't want to pay $120 for it...I will if I have to but the 'budget' minded XSPC blade for around $75 is more appealing considering the price of the card.

 

XSPC is supposed to have the blade.

 

I Just found this interesting piece that PowerColor will be releasing: http://wccftech.com/powercolor-liquid-cooler-amd-polaris-amd-radeon-pro-duo/

 

A Chinese company BYKSKI has them out or coming out.

 

I believe I saw something for Aquacomputer, or maybe Alphacool...can't remember.

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post #185 of 4367 Old 07-26-2016, 05:49 PM
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I think this is going to be it for stock BIOS...I bet it's got a little more left in the tank once the VRM temps are down where the core is.  I'm thinking I'm going to use my homemade sink on the back of the VRMs once I have the water block installed. 

 

1410/2250 1.15V core & VRAM +50% Power

 

It's right at that ~175W mark for peak power draw again like it was for 1350/2250 with the reference cooler.

 

http://www.3dmark.com/3dm/13637779?

 

 

Some Doom testing will be done later this evening to see how it goes with the marginal increase in core clock.  I think I'm also going to enable FRTC at ~75 FPS to see what that will do to power consumption.  Letting it go balls-to-the-wall on Ultra 1080P netted 152W average over about 90 minutes...I'm betting power consumption will come down to around 100W  if I put the lid on it. 

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post #186 of 4367 Old 07-26-2016, 06:13 PM - Thread Starter
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Originally Posted by Roboyto View Post

I think this is going to be it for stock BIOS...I bet it's got a little more left in the tank once the VRM temps are down where the core is.  I'm thinking I'm going to use my homemade sink on the back of the VRMs once I have the water block installed. 

1410/2250 1.15V core & VRAM +50% Power

It's right at that ~175W mark for peak power draw again like it was for 1350/2250 with the reference cooler.

http://www.3dmark.com/3dm/13637779?




Some Doom testing will be done later this evening to see how it goes with the marginal increase in core clock.  I think I'm also going to enable FRTC at ~75 FPS to see what that will do to power consumption.  Letting it go balls-to-the-wall on Ultra 1080P netted 152W average over about 90 minutes...I'm betting power consumption will come down to around 100W  if I put the lid on it. 

You doing a full coverage block? Interested to see how things go

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post #187 of 4367 Old 07-26-2016, 07:07 PM
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You doing a full coverage block? Interested to see how things go

Yeah waiting for the XSPC Blade to become available...bit of an XSPC fanboy here 8)

I'll grab an EK if I must but the $120 price tag isn't as appealing as the $75 or so the blade is supposed to run. I'm already at $300 for the GPU with tax and MicroCenter's 2 year trade-in warranty. Trying to keep it under $400 haha
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post #188 of 4367 Old 07-29-2016, 01:18 PM
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Found a shop with the XSPC Blade waterblock available...mine is already on it's way :wheee:

 

http://www.shopsws.com/blade-rx480.html

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post #189 of 4367 Old 07-29-2016, 01:30 PM
 
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Found a shop with the XSPC Blade waterblock available...mine is already on it's way wheee.gif

http://www.shopsws.com/blade-rx480.html

Can't wait to see some benchmarks/numbers!
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post #190 of 4367 Old 07-29-2016, 02:24 PM
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Can't wait to see some benchmarks/numbers!

 

USPS shows delivery for tomorrow...I will likely have it installed tomorrow evening worst case and will be tinkering post haste :D

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