AMD RX 7000 series GPU Owners' Club

[remekra]

7900XTX from Sapphire just arrived, didn't install it yet. Looks miles better than the Gigabyte one I had. Just one question if anyone here has it. Which switch position is the default higher power one? On the instruction it seems like the right one with the card placed as it would be in a PC, but on review I read that it is the left one.
EDIT
Set it to right most setting and it's either the performance one or software switch one (that defaults to performance) as card at max is drawing 400W. At it's whisper quiet, so far amazing step up from Gigabyte one. Cool, quiet and no coil whine to be heard.

 

[Kabouter Plop]

Seen my hotspot go up to 87 repaste brings it down but it comes back to normal after a week, so i ordered a PTM7950 pad now waiting for that to arive, read it performs close and potentially better then liquid metal, but pad says solid at 45c wont melt past 45c which is where it gets good, should be perfect for gpu with up to 90+ hotspot
it's stupidly hot in my room despite it being cold weather outside, eitherway not gonna bother with paste i did 2 repaste first time with borderline almost to much, 2e time a little less can't bring the thermals down for more then a week after which it gets worse.
42c delta in 3D occt test

340+ litre per hour

 

[Frizz]

Having an absolute blast with the 7900xtx as I prefer turning off DLSS/FSR sampling. My TJ max for the Nitro+ is generally within 10-15C.

This is also the first card I ever owned that was whisper quiet and has no coil whine!

CPU score is low below since my E-Cores are off but look at that GPU score!

 

[Vya Domus]

Watercooled my system including my 7900XT with an Alphacool Eisblock Aurora, temps at stock around 45C core, 60C hotspot with a room temperature of abut 25C and overclocked about 46-47C core and 70C hotspot running at 2950-3050mhz in most games actually.

 

[TheoneandonlyMrK]

Watercooled my system including my 7900XT with an Alphacool Eisblock Aurora, temps at stock around 45C core, 60C hotspot with a room temperature of abut 25C and overclocked about 46-47C core and 70C hotspot running at 2950-3050mhz in most games actually.

View attachment 306829View attachment 306830

How did you find the install to go, I've used only EK so far.

 

[Vya Domus]

How did you find the install to go, I've used only EK so far.

It was pretty simple, the only thing that was kind of a pain was using the paste that came with the block because it's really thick and doesn't spread easily.

 

[TheoneandonlyMrK]

It was pretty simple, the only thing that was kind of a pain was using the paste that came with the block because it's really thick and doesn't spread easily.

Looks like you managed to get the backplate on still too, looks nice I like the look of the block.

 

[kapone32]

Watercooled my system including my 7900XT with an Alphacool Eisblock Aurora, temps at stock around 45C core, 60C hotspot with a room temperature of abut 25C and overclocked about 46-47C core and 70C hotspot running at 2950-3050mhz in most games actually.

View attachment 306829View attachment 306830

I have the exact same block and temps are pretty much the same. As far as performance 2898 is my Auto OC number and like you said I do see up to 3018 in Games. I would take a picture but I am too lazy. It is an easy block to install and I used Noctua NTH2 instead of the Alphacool paste as well.

 

[JrRacinFan]

@Vya Domus very nice! I should be pulling apart my loop over the next day and repaste mine. I was one of the ones to get the botched paste job from the factory. I also got a PCIE4 Riser so I'll be switching to vertical gpu.

 

[Kabouter Plop]

Vertical gpu mount is best for gpu lifetime, if you ever had pcb repair on gpu then you have no choice, as horizontal gpu mount would put gpu at huge risk.
Also be careful repasting, do not just jank it off you can rip off solder joints which is invisible damage.
I may try PTM7950 on my liquid devil soon suposely NVIDIA uses this on the rtx 4090 FE already i read somewhere and it can perform as good as liquid metal if i have to believe the test or least better then stock thermal paste.

It melts above 45c turns more to liquid substance like liquid metal, but i think PTM7950 is not electrive conductive

 

[JrRacinFan]

Vertical gpu mount is best for gpu lifetime, if you ever had pcb repair on gpu then you have no choice, as horizontal gpu mount would put gpu at huge risk.
Also be careful repasting, do not just jank it off you can rip off solder joints which is invisible damage.
I may try PTM7950 on my liquid devil soon suposely NVIDIA uses this on the rtx 4090 FE already i read somewhere and it can perform as good as liquid metal if i have to believe the test or least better then stock thermal paste.

It melts above 45c turns more to liquid substance like liquid metal, but i think PTM7950 is not electrive conductive

2nd unsuccessful attempt at switching to vertical gpu. I cant seem to find a riser that fits the 5000d's mounting. Also mental note; a 420mm AIO works in the 5000d but not a custom loop 420MM radiator as there is fitment issues puting the radiator at the front. I called it a night, i'll finish up the cable management and tubing tomorrow sometime.

 

[AusWolf]

Vertical gpu mount is best for gpu lifetime, if you ever had pcb repair on gpu then you have no choice, as horizontal gpu mount would put gpu at huge risk.
Also be careful repasting, do not just jank it off you can rip off solder joints which is invisible damage.
I may try PTM7950 on my liquid devil soon suposely NVIDIA uses this on the rtx 4090 FE already i read somewhere and it can perform as good as liquid metal if i have to believe the test or least better then stock thermal paste.

It melts above 45c turns more to liquid substance like liquid metal, but i think PTM7950 is not electrive conductive

Except that your GPU is pushed against the side panel so its airflow is almost completely blocked in most cases.

 

[Kabouter Plop]

Except that your GPU is pushed against the side panel so its airflow is almost completely blocked in most cases.

Not a problem when watercooling, even reference 7900 XTX ran better on vertical then horizontal if it had vaporchamber issue, so that tells me vaporchamber works better vertical even when there is no issue probably.

 

[JrRacinFan]

GPU Hot Spot junction temp is still stupid high (90s) after repaste. Maybe I just got a dud. :/

 

[TheoneandonlyMrK]

GPU Hot Spot junction temp is still stupid high (90s) after repaste. Maybe I just got a dud. :/

Can I ask two things, how hot.

And are you using the traditional thin amount of paste tactic or pea size per say.

Cryptic for f fall sorry I just think maybe slather the Tim on it could be a piss poor heatsink surface or chip surface or they're mating err what now, you get me

 

[Kabouter Plop]

GPU Hot Spot junction temp is still stupid high (90s) after repaste. Maybe I just got a dud. :/

What card total board power and cooling type ? even my liquid devil 7900 XTX hits 90c hotspot altho it also largely depended on room temp altho not 100% sure how that scales yet it used to be max 80c hotspot in 3D occt now runs instant 90c delta also gone up im doing PTM7950 probably tommorow on my liquid devil that some have reported on dropping temps least by 10c sometimes more sometimes even 15c

 

[JrRacinFan]

What card total board power and cooling type ? even my liquid devil 7900 XTX hits 90c hotspot altho it also largely depended on room temp altho not 100% sure how that scales yet it used to be max 80c hotspot in 3D occt now runs instant 90c delta also gone up im doing PTM7950 probably tommorow on my liquid devil that some have reported on dropping temps least by 10c sometimes more sometimes even 15c

ALso a Liquid devil see attached. This is about an hour of gaming on Rocket League. If I ping it in PC Building Simulator 2 which runs the card 100% Hot Spot gets up to 90s with about 52-55C core temp.

 

[Kabouter Plop]

I aplied PTM7950 today instead of sleeping, defiantly do not got steady hands but 2e attempt i got good aplication it was a pain to aply,
but my thermals are better before it even molten.
39c 65c hotspot at 390 oc bios on unleashed it runs slightly higher board power also PTM7950 will run worse at first then get better the longer you run it getting close to liquid metal performance.

I usually test playing bang on balls and let it cycle thru it which usually lets it hit 82c hotspot in worse case scenario and 90c on my internal loop, i am very surprised my idle temps can even hit 24c at idle. first boot so it must get hot enough to melt straight away curious how this will perform in 1 or 2 weeks to 1 month or more, hopefully only gets better not worse defiantly worth 40 dollars.

7900 XTX has such high hotspot it squishes thermrmalpaste away creating dry spots my 2e thermal paste attemp was really bad dry spot and i litterally manually spread and put little extra in middle area where the dry spot is, so i hope ptm7950 solves this problem and keeps thermals at acceptable levels

Ran the 3D occt test on unleashed 72c hotspot max running for 1 minute before was 91 92c hotspot so about 20c improvement at best on hotspot.

 

[JrRacinFan]

Im going to be switching back to an Enthoo Pro 2 and my 420MM rad. I thought I'd be ok downsizing the rig, guess not. It was ok with a 5900x + 3070 ti but not the 7900x3d + 7900 XTX.

 

[Kabouter Plop]

Just get a Mo-ra3 420 maybe even 2 for fun, you probably wont ever need more then 1 single Mo-ra3 420 tho unless gpu's gonna go towards 1000w total board power, but how the hell would you even manage to cool this, your room will be 30c ambient in the winter just from playing a game at full 1000w total board power if the gpu does not throtle from the overheating it does on watercooling.

 

[Vya Domus]

GPU Hot Spot junction temp is still stupid high (90s) after repaste. Maybe I just got a dud. :/

I noticed that the more power goes through the chip the hotspot temperature increases disproportionately to core temperatures no matter how good the cooling is, I think that's just what to expect from these chips, I think your card uses more power than reference design as well.

 

[Kabouter Plop]

Problem is so much power go's thru the chip it expands this causes thermal paste to squish to the side, then it cools down creates a gap, the more it cycles like this the bigger the void zones, red devils and liquid devil suffer a lot from this, so unless paste is not moving when this happens its gonna get worse and worse atleast that is what i suspect happens with my liquid devil suposely ptm7950 fixes this cos its a pad cos it gets bit harder when coolsdown below 45c and above 45c it becomes softer kinda acting like liquid metal, lenovo puts it on their laptops, Nvidia puts it on the rtx 4090 founders edition

Hopefully custom aib look into it and consider testing it and putting it on current gen or least nextgen rdna cards, im not sure how well it gonna work long term but short term getting amazing results, and acording to test when it go's thru cycles it gets better.
EVGA has attempted to fix this issue with their gpu's but it had the disadvantage of cracking under liquid nitrogen i believe unless i miss understood, gamernexus did a video about EVGA worth a watch.
Most people report about 10c to 20c improvement but this is probably only compared to old aplication of thermal paste vs new aplication of ptm7950 but its supose to last entire lifetime of the device, i wish more YouTubers tested this and brought it to attention, there are bad visions tho of ptm7950 and better visions.

today hitting 71c hotspot max in ratchet and clank altho my watertemp is also about 1c higher today underload 72c in 3D occt test which is capable of hitting max temps

Furmark hits instant 55c - 56c not even a real thermal stress test these days.

Im curious how its gonna behave long term last thing i want is its going to go thru its cooling and heatup cycles creating new voidzones and hotspot areas.
Luckily its not super hot here anymore outside, my room temp is usually always 24-25c during the summer.

 

[Space Lynx]

@Vya Domus what is your undervolt or settings in general that you use on your water cooled 7900 xt? I am currently sitting at -90 (but i can go lower), with ram at 2780 and 3300 boost on gpu even though I only ever see it boost to like 2950. not sure how to make it clock higher, might just be its hard limit. I tried lowering and raising the voltage, but it didn't matter, temps were always cold, and scores improved over stock on time spy, so eh I don't know, i guess that's just this cards limit. still not bad for air.

if anyone wants to see my rig: https://www.techpowerup.com/forums/threads/your-pc-atm.65012/page-1347

 

[Vya Domus]

@Vya Domus what is your undervolt or settings in general that you use on your water cooled 7900 xt? I am currently sitting at -90 (but i can go lower), with ram at 2780 and 3300 boost on gpu even though I only ever see it boost to like 2950. not sure how to make it clock higher, might just be its hard limit. I tried lowering and raising the voltage, but it didn't matter, temps were always cold, and scores improved over stock on time spy, so eh I don't know, i guess that's just this cards limit. still not bad for air.

if anyone wants to see my rig: https://www.techpowerup.com/forums/threads/your-pc-atm.65012/page-1347

Voltage is set to 1025mV and max frequency to 3150.

Mine didn't really boost much past 2900Mhz either on air, the lack of fans which uses some board power and the lower power leakage from lower temps probably gave me some extra watts to boost past 2950Mhz. It also matters how overclocked your memory is, mine is at 2625Mhz because the more power the memory uses the less power left for the core.

 

[Kabouter Plop]

68c hotspot max after 6 days at 21.6c minimum watertemp at idle 23c edge temp at idle about 1c colder then last week or so no sign of degradation yet of thermals.