Overclock.net - An Overclocking Community - Reply to Topic
Thread: [Official] Vega Frontier / RX Vega Owners Thread Reply to Thread
Title:
Message:

Register Now

In order to be able to post messages on the Overclock.net - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
02-19-2020 04:12 AM
snipernote
Quote: Originally Posted by hesee View Post
Oh, getting way over 300W and staying there isn't any issue. I tried AIO versions bios as well to see how far card goes and powertable mod to set base TDP from 240W to 264W. My card just hits the limit with target clock of 1700-1710mhz, so rising that is futile and rising voltage is pointless as now it's stable and increasing it basically just adds heat and only few mhz more to actual clocks.
But its an issue for vega nano pcb because after what i saw from AHOC pcb analysis video it seems like a vrm downgrade (7 phase) compared to stock vega 56 and 64 (12 phase) plus the pcb is half the size with more condensed heat being the main problem ... I am pretty sure now that my card cannot sustain 300w power into the gpu without breaking something so i will be stopping here and start enjoying its performance

I am just glad my card works as it is .. getting 1540mhz mostly stable after heating up the system with 260w sustained is great in my case as i am getting the best performance it can from a 186w rated card

Sent from my POCOPHONE F1 using Tapatalk
02-18-2020 07:01 AM
hesee
Quote: Originally Posted by snipernote View Post
If you have problems with power limit not reaching +50% thats usually a psu problem in my case i have upgraded to a 1050w psu to keep my card usage in check
Glad to see even vega cards on water block barely reach 300w .. i thought you would have sustained it to reach 100c hotspot but that would be a golden sample apparently to keep it low
Oh, getting way over 300W and staying there isn't any issue. I tried AIO versions bios as well to see how far card goes and powertable mod to set base TDP from 240W to 264W. My card just hits the limit with target clock of 1700-1710mhz, so rising that is futile and rising voltage is pointless as now it's stable and increasing it basically just adds heat and only few mhz more to actual clocks.
02-18-2020 02:36 AM
snipernote
Quote: Originally Posted by hesee View Post
On my Nitro+ and waterblock combo i had to switch to carbonaut pad to tame the hotspot. Hotspot was allways good in the begining, but it degraded after few months. Probably paste had too high viscosity and got pumpped out. Carbonaut had about 2c higher temperatures for core/hbm, but hotspot has been under control longer than with the paste.
Based on many replies from my post on reddit ... Cooler master mastergel nano maker new 11w/mk is the thickest paste i tried so far and its very suitable for vega imo ... After 2 months i opened the card and the paste was like a lightly dried yhick paste that i found most of it on the sides of the gpu core so i placed it back on the gpu core and closed the card as an experiment ... It was my best result so far before lapping reaching 318w peak and 260w sustained in superposition extreme 1080p at 1580mhz minimum getting 4655points with no washers or other mods ... Just that paste replacement ...
I also chamged the thermal past on another gpu (rx480 red devil) and the gpu temps dropped by 15c (80c to 65c) and better performance (over 110w sustained (old paste was a gd900 that lost its thermal conductivity due to expiration date and power usage was lower than 90w )

I would recommend this paste to anyone for gpu cores and always use a very thick paste for vega gpus
Gc extreme paste felt very fluid compared to cm tim and needed about 2 days to settle correctly

Also if anyone interested i contacted powercolor for the accurate thermal pads replacement for vega 56 red dragon and posted it on reddit as well
Link :
https://www.reddit.com/r/Amd/comment...m_source=share

Sent from my POCOPHONE F1 using Tapatalk
02-18-2020 02:09 AM
snipernote
Quote: Originally Posted by Nighthog View Post
Hotspot is kinda hard to tame.



I have a waterblock and reach above 105C when going to 300W and above. Basically can't use +50% powerlimit or some games will crash.



Vega 64



Is only stable UV ~1115-1120mv @ 1630, settings.

1080Mhz HBM.



using only +40% power ~270W it doesn't reach 90C. Those last watts really increase the temperature. I've realized the waterblock I got can't handle more than about 300W total as it is. Would probably need to do modifications for mounting pressure next but that's too much hassle. The card overall can get toasty even like this in extended usage.
If you have problems with power limit not reaching +50% thats usually a psu problem in my case i have upgraded to a 1050w psu to keep my card usage in check
Glad to see even vega cards on water block barely reach 300w .. i thought you would have sustained it to reach 100c hotspot but that would be a golden sample apparently to keep it low
Anyway i am happy with my vega so far i wont be pushing it further as i dont want to invest in a waterblock and equipments that will cost the same price as the gpu ... Upgrading the gpu to a higher end one might be worth it on the long run (i am eying the vii with its 16gb hbm vram xD but i cannot explain it to my self if that card cannot sustain 400w+ on air with oc/uv lmao)

Sent from my POCOPHONE F1 using Tapatalk
02-17-2020 10:03 PM
hesee
Quote: Originally Posted by Loladinas View Post
Yeah, but I wonder why. What's different between our systems...
Well it could be that i have a molded die and you have a unmolded one. Plus i haven't checked my heatsink shape, it should be flat, but it it's a little bit convex/concave it could cause the difference.
02-17-2020 01:22 PM
Loladinas
Quote: Originally Posted by hesee View Post
Pretty close. Room temperature is bit higher here and pump & fans kick of in my system when water heats up more than this bench archives. For benchmark i could shave 2-3c of from temperatures (drop room temperature from 23-24 to 21), but in real gaming actual temperatures are around 5-7c higher as water heat's up and then system finds equalibrium.

Anyway this is third seating of waterblock, noctuas paste and mx4 both got degraded on my system, so i had to try the carbonaut pad.
Yeah, but I wonder why. What's different between our systems...
02-17-2020 12:59 PM
hesee
Quote: Originally Posted by Loladinas View Post
Out of curiosity I ran the same bench. 30C - 34C - 65C. Peak temps, averages were a few degrees lower. Just a quick test at 1700Mhz core, 1000Mhz HBM, I just run this card stock most of the time. Power limit set to 330W, so I don't think it peaked out at 301W but it's getting pretty close.
Pretty close. Room temperature is bit higher here and pump & fans kick of in my system when water heats up more than this bench archives. For benchmark i could shave 2-3c of from temperatures (drop room temperature from 23-24 to 21), but in real gaming actual temperatures are around 5-7c higher as water heat's up and then system finds equalibrium.

Anyway this is third seating of waterblock, noctuas paste and mx4 both got degraded on my system, so i had to try the carbonaut pad.
02-17-2020 12:36 PM
Loladinas
Quote: Originally Posted by hesee View Post
I just run superposition 1080 extreme. Score was 5168. (Vega 64 with 1702/1125mv and 1075mhz hbm)

Core 39c
HBM 40c
Hotspot 67c
Power peak: 306W.

With MX4 Hotspot started with 65c, but after few months it hit over 100c.
Out of curiosity I ran the same bench. 30C - 34C - 65C. Peak temps, averages were a few degrees lower. Just a quick test at 1700Mhz core, 1000Mhz HBM, I just run this card stock most of the time. Power limit set to 330W, so I don't think it peaked out at 301W but it's getting pretty close.

So, like I said, I should fix my hotspot with proper mounting. And maybe VRM temps too, since I used two different thickness thermal pads, I don't think I'm getting good contact on some of them. But other than that, I don't see any issues. I've been running it like this since last April or May - no difference in temps at all.
02-17-2020 07:26 AM
hesee
Quote: Originally Posted by Loladinas View Post
What core/hotspot temps were you seeing on your card? I have been running one with a simple smear of MX-4 for close to a year now, and I'm getting somewhere around ~20C over water temp on the core and ~40C over water on the hotspot, as the worst case scenario (stress testing heavy overclocks). In regular use it's less than half of that. No signs of pumpout

Although I do realize I screwed up my application after I had completed my system, as per some previous posts here it's possible to get way lower core-hotspot delta, I've been putting off fixing it. Bit too much work for me, maybe I'll force myself to do it whenever I decide to do some loop maintenance.

EDIT: my die is of the "unmolded" variety, but HBM chip temps stay perfectly chilly
I just run superposition 1080 extreme. Score was 5168. (Vega 64 with 1702/1125mv and 1075mhz hbm)

Core 39c
HBM 40c
Hotspot 67c
Power peak: 306W.

With MX4 Hotspot started with 65c, but after few months it hit over 100c.
02-17-2020 05:37 AM
Wuest3nFuchs
Quote: Originally Posted by Loladinas View Post
Overclocked 4790k under EWBK Supremacy Evo and reference PCB Vega 56 with sammy HBM under Barrow block. To be fair my rad setup is two Phobya 1260 radiators in series, standing on the floor next to the desk. That could skew the results a bit.
Thx i'm using a mora 420 pro but i guess it will work. at least i'll hope it.

Gesendet von meinem SM-G950F mit Tapatalk
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off