AMD reference 480 + Accelero Mono Plus

Zstream

Diamond Member
Oct 24, 2005
3,395
277
136
Hi Everyone,

Just wanted to post a quick review of the 480 with an Accelero Mono Plus. Now, before I get to the review, I wanted to quickly talk about the reference cooler and clocking results.

At default settings, with no fan adjustment:
ebbe88f263c99abd084fab75a75bf116.png


I do not find the fan to be noisy at this setting. However, I did notice that the GPU core was throttling. Meaning, it was not reaching the boost clocks of 1266. I modified the fan speed as shown and ran 3dmark again.

e2470829c84bac8b732268ff21121b7f.png


605912c5e54d083774ceef44248e9f85.png


At this RPM speed, the fan does become noisy and a little obnoxious. I could set the fan to a lower RPM speed, but my office room is at 76F and I didn't feel comfortable with lowering it. Additionally, I wasn't annoyed until the levels posted.

I'm using this case: http://www.legitreviews.com/nzxt-classic-series-h2-silent-pc-case-review_1574

I read over and over that under-volting allows the card to reach 1266 mhz because of ability for the gpu to use less power, which equals not getting as hot, allowing for boost clocks to kick in. I try not to get my GPU over 85C in any scenario, so that was my goal.

Here are my settings and 3dmark firestrike score:
69e903e5515b6162e56e7ec50bb5045f.png


367ba4611b63077ebacfd6e09b17cf01.png


I thought that was pretty good, but I ordered an Accelero Mono Plus from Amazon with my $30 gift card. It wasn't out of a need per se, as I managed to get the reference fan to a good hum along with boost clocks clicking in whenever I played games.

I did not put any thermal paste on the memory chips, they are running bare with the cooler on. I would be missing two of the ram chips anyways. *The fan does cool the memory by pushing air directly over the chips.

4c28697e02dc0489a7c9283ceae52052.JPG


I decided to turn all the dynamic voltages back on and ramp up the GPU core to 1350. I lowered the fan speed to 1600 and 2100 max (max temps never went above 65C). Yes, power usage went up, but my motherboard has a separate PCIe power port.

7d8bf74c39ef7b84cc30751bbe9468d0.png


In summary, buying a reference card and under-volting is the definite way to go. I wouldn't wait on AIB cards at all (unless a little noise bothers you) as the increase in score is minimal. The Mono Plus does an AMAZING job at cooling the GPU core, all while being near silent.

Specs:
Haswell V3-1231
ASROCK Z97 Pro4
32GB Mushkin Enhanced ECO2 DDR3 1600
Windows 10
 
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sirmo

Golden Member
Oct 10, 2011
1,014
391
136
Nice review dude.. I got an Extreme IV on mine, and my rx480 has been chugging along like a champ with it.

It's definitely the way to go for us the impatient. Also it's important to note, once I am done with the rx480 I will probably put the reference back on it and keep the Extreme IV for the next card that needs it :)
 

Madpacket

Platinum Member
Nov 15, 2005
2,068
326
126
OP have you tried flashing the Rx480 1.4V BIOS? I see people getting up to 1400 on air stable.
 

Zstream

Diamond Member
Oct 24, 2005
3,395
277
136
OP have you tried flashing the Rx480 1.4V BIOS? I see people getting up to 1400 on air stable.

I have not - I can give that a try. I'm worried about the middle chips, not the VRM's. Are those supposed to be cooled? If so, I'll have to find a thin piece of aluminum or something to put across it.

68e32e1513e5d425501cbf851d04d17f.JPG
 

GrQ

Junior Member
Mar 25, 2014
5
0
36
I have not - I can give that a try. I'm worried about the middle chips, not the VRM's. Are those supposed to be cooled? If so, I'll have to find a thin piece of aluminum or something to put across it.

68e32e1513e5d425501cbf851d04d17f.JPG
Those ICs are part of the VRM.
 

IEC

Elite Member
Super Moderator
Jun 10, 2004
14,595
6,067
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Germans didn't even bother with a heatsink on the VRMs. You'll be fine as long as you have airflow.
 

laamanaator

Member
Jul 15, 2015
66
10
41
I recommend checking the VRM temps while gaming or running benchmarks. GPU-Z is a good tool for that. I wouldn't run the VRM higher than 85°C, although the VRM can handle temperatures up to 105°C. Higher VRM temps mean lower maximum power allowed to be supplied. That OCd 480 beats my OCd 290 by 10%, while consuming half the power!:thumbsup: :D
 

Zstream

Diamond Member
Oct 24, 2005
3,395
277
136
I recommend checking the VRM temps while gaming or running benchmarks. GPU-Z is a good tool for that. I wouldn't run the VRM higher than 85°C, although the VRM can handle temperatures up to 105°C. Higher VRM temps mean lower maximum power allowed to be supplied. That OCd 480 beats my OCd 290 by 10%, while consuming half the power!:thumbsup: :D



Weird, I'm running GPU-Z 1.9.0 and it has no mention of VRM temps. I used HWinfo and I'm around 65-69C when benchmarking. I'll get a small piece of aluminum and attach it.
 
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laamanaator

Member
Jul 15, 2015
66
10
41
Weird, I'm running GPU-Z 1.9.0 and it has no mention of VRM temps. I used HWinfo and I'm around 65-69C when benchmarking. I'll get a small piece of aluminum and attach it.

That's quite odd. I'm also running GPU-Z 1.9.0 and I've got it right here:
Gwl2bK6.png

The only thing I can think of is that GPU-Z doesn't yet support VRM temperature measuring on RX 480.
 

Fondue

Junior Member
Jun 19, 2016
10
0
66
I got the same cooler installed on my 480 with near identical results. I got a stable 1400MHZ on the core and 2250MHz on the mem. Voltage @1090mV. Same temps as you. It could easily go higher but I believe my PSU is holding me back. During testing the fan on it started ramping up and got pretty loud, something its never done before. It's a 450w cheapo Enermax that I probably should have changed out last year. I've since ordered a EVGA supernova 550w. That should get here on Monday.

I ran a FS and got a 14335 graphics score with the OC. At stock it was closer to ~12000. One thing that's kind of bugging me though is my VRM temps. Not that they are high or anything, but that I can't see them period. No program displays them...gpuz, nope...HWMonitor, nope...HWinfo, nope. I hope I didn't damage the sensor when installing the heat sinks. I got a lot of case fans so I'm not too worried about it, just kind of annoyed.
 

Zstream

Diamond Member
Oct 24, 2005
3,395
277
136
Well HQiNFO64 shows the VRM for me. It has a total of two VRM points with only one going up.
 

sirmo

Golden Member
Oct 10, 2011
1,014
391
136
Well crap...
I would not worry about the VRMs on the rx480.. they are way overbuilt for the card itself. I have actually measured them with a thermal camera under stress (I don't have a heatsink on them) and they don't even reach 60C..

The only VRM that gets warm is the most top one which powers VRAM.. and I've measured about 70C temps on it.. these VRMs are rated for 125C max.

The Accelero GPU cooler removes heat from the board.. and keeps my entire board cool actually, by removing the GPU heat it prevents other components from getting heat soaked by the GPU.. so there is really no need for any additional heatsinks.
 
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KompuKare

Golden Member
Jul 28, 2009
1,224
1,582
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hope I didn't damage the sensor when installing the heat sinks.

I think the sensor part of the VRM chip (IR3567) gets the temperature but I guess that in turn must read them somewhere. Probably some diodes somewhere. But the point is, I think it would be hard to damage them without breaking the whole PCB.
Actually Infineon have the specs online:
http://www.infineon.com/cms/en/prod...ype=5546d462533600a401533d2546765ec7#ispnTab1

"I2C/SMBus/PMBus system interface for telemetry of Temperature, Voltage, Current & Power for both loops"
So I guess that makes it more complicated than if it simply read the input temp from somewhere.
 

sirmo

Golden Member
Oct 10, 2011
1,014
391
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I got the same cooler installed on my 480 with near identical results. I got a stable 1400MHZ on the core and 2250MHz on the mem. Voltage @1090mV. Same temps as you. It could easily go higher but I believe my PSU is holding me back. During testing the fan on it started ramping up and got pretty loud, something its never done before. It's a 450w cheapo Enermax that I probably should have changed out last year. I've since ordered a EVGA supernova 550w. That should get here on Monday.

I ran a FS and got a 14335 graphics score with the OC. At stock it was closer to ~12000. One thing that's kind of bugging me though is my VRM temps. Not that they are high or anything, but that I can't see them period. No program displays them...gpuz, nope...HWMonitor, nope...HWinfo, nope. I hope I didn't damage the sensor when installing the heat sinks. I got a lot of case fans so I'm not too worried about it, just kind of annoyed.
If you want to be ultra safe.. then probably don't overclock/overvolt the memory so much.. because the memory VRM is the only one that even gets warm. You can probably get the memory to 2150Mhz on stock voltage.. and that should be fine. I run my memory at 900mV and 2100Mhz
 

Fondue

Junior Member
Jun 19, 2016
10
0
66
If you want to be ultra safe.. then probably don't overclock/overvolt the memory so much.. because the memory VRM is the only one that even gets warm. You can probably get the memory to 2150Mhz on stock voltage.. and that should be fine. I run my memory at 900mV and 2100Mhz

The 1090mV was just for the core. I have my mem voltage set to auto. I'll tinker with it some more when my new psu arrives.
 

JDG1980

Golden Member
Jul 18, 2013
1,663
570
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Would it be possible to cannibalize the base plate of the stock cooler to use as a VRM and memory heatsink, and install the Arctic cooler over that? I've been thinking about doing that with the Arctic Accelero S3, once the RX 480 stops being out of stock 99% of the time.
 

Zstream

Diamond Member
Oct 24, 2005
3,395
277
136
Would it be possible to cannibalize the base plate of the stock cooler to use as a VRM and memory heatsink, and install the Arctic cooler over that? I've been thinking about doing that with the Arctic Accelero S3, once the RX 480 stops being out of stock 99% of the time.



You could, but I wanted to keep the reference cooler. I should have just done that though ;)
 

sirmo

Golden Member
Oct 10, 2011
1,014
391
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Would it be possible to cannibalize the base plate of the stock cooler to use as a VRM and memory heatsink, and install the Arctic cooler over that? I've been thinking about doing that with the Arctic Accelero S3, once the RX 480 stops being out of stock 99% of the time.
It wasn't possible because it gets in the way.. at least with my Extreme IV.. It is not needed however as I mentioned above anyways.
 

Erasmuz

Junior Member
Oct 23, 2016
2
0
6
Hi Everyone

Hi Zsttream, how far above the PCB does the fan extend? I have 53mm from the top of the PCB to the side of my case, I really want this cooler but need to check it will fit first! Thanks in advance for your help and great review thank you!
 

Erasmuz

Junior Member
Oct 23, 2016
2
0
6
Thanks for your reply! However I meant how high it extends past the top of the PCB, i.e. opposite the PCI slot