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AMD Radeon MBA 7900 XTX Junction Temp issue workaround

Haz123 said:
I mentioned this earlier in the thread. There may not be any waterblocks currently available for this PCB but Derbauer could have put a known working cooler onto pcb with the junction temp problem. If, with the new cooler , the temps were then ok it would have proved that it was faulty vapour chamber cooler.
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Unfortunately that wouldn't have proven anything as the thermal paste and mounting pressure could well be different with the other cooler.

Diagnostics is a process of elimination and, whenever possible, you change one thing at a time.
 
Freddie1980 said:
AMD have already acknowledge their looking into this issue and now with Derbauer pointing out a likely culprit I wonder how AMD will react. Most of the time when AMD have had problems it's been due to faulty software and buggy drivers I don't recall a time when they've had such a widespread hardware design fault they could result in a product recall, I wonder how they will respond (I hope they respond better then they did with the 6600XT fault that was never probably addressed besides 'get 800 watt PSU for your 190 watt card' :rolleyes:). I wonder if these were made by PC Partner Group/Zotac?
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I dont want to drag this thread way off topic but can you say any more on the 6600XT fault that was never probably addressed besides 'get 800 watt PSU for your 190 watt card?

I sent back a B grade 6600XT just before christmas but took a chance on it due to the price and the power consumption with my 500w psu.
 
rumple9 said:
Igor's lab says AIB partner indicates faulty initial batch of coolers

https://videocardz.com/newz/amd-par...adeon-7900-gpus-is-affected-by-thermal-issues

Early adopters beta testing again....
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It's at least good news; meaning the amd design is not at fault but it's just the problem with the supplier who made the vapour chamber

The bad news is it affects a lot of cards. Derbauer said with the 4090 cable issue he struggled to find someone who had the issue and could give him a card and cable to test but with this 7900xtx he had lots of people replying very quickly to him willing to send him their cards that had the issue. To date the 12hwpr issue affected less than 100 cards since launch but the overheating vapour chamber issue is already affecting thousands of cards
 
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Sad Panda said:
So for those of you like me who have been having this issue, I did the following things to "fix" it:

1. Undervolted to 1120mV
2. Overclock memory to 2714 MHz (Just for performance not the fix)

My Junction Temps went from 112c to 84c max

Also, my Time Spy Extreme score improved from 12,175 to 13,280

Base system for reference is Ryzen 7900X on Asus ROG X670E Hero with 32 GB DDR5 Ram at 6000MHz

Latest drivers including Catalyst 22.12.2

No tilting the case on a corner or any other BS like that :p
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Looking at the spec in your sig, dig you buy the 7900XTX for a retro PC build?
 
Grim5 said:
It's at least good news; meaning the amd design is not at fault but it's just the problem with the supplier who made the vapour chamber

The bad news is it affects a lot of cards. Derbauer said with the 4090 cable issue he struggled to find someone who had the issue and could give him a card and cable to test but with this 7900xtx he had lots of people replying very quickly to him willing to send him their cards that had the issue. To date the 12hwpr issue affected less than 100 cards since launch but the overheating vapour chamber issue is already affecting thousands of cards
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It certainly is a QC issue as having seen some factory tour vids, aren't the cards run through a series of tests before they pass :confused:
 
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Round 2

Tldr: vapour chamber design seems fine, probably just not enough water inside

Also it looks like 25% of 7900XTX owner's experience overheating. Iirc, rumours were that amd had 80k MBA cards for launch so that's 20 thousand GPUs that need an rma

 
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Looks like I lucked out. Managed to grab an MBA on launch day, and all the temps are rock solid. Never seem to exceed 85 degrees, fan sits at 1600-1800 rpm, GPU boost remains stable, all seems fine. Mine doesn't overclock at all really (it is an MBA card after all, so i'm not really surprised) and other than some Vulcan related driver oddness, which was resolved by DDU, it's all working normally, at least for me. While it would be concerning if I did have the problem, the fact I plan to whack a waterblock on this at some point would lessen the blow somewhat.

It will be interesting to see what AMD/AIBs do about this going forward though.
 
G J said:
I dont want to drag this thread way off topic but can you say any more on the 6600XT fault that was never probably addressed besides 'get 800 watt PSU for your 190 watt card?

I sent back a B grade 6600XT just before christmas but took a chance on it due to the price and the power consumption with my 500w psu.
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You can read about my wow's in this thread but there is a dedicated thread on AMD own support forums (it's titled Sapphire Pulse but the issue effects lots of models).

The TLDR was when booting the screen turns black just after displaying the Windows logo (right at the point Windows loads the graphics driver), it doesn't happen all the time but when it does happen I ended up having to cycle the PC multiple times to get it to boot. The fix was replacing the PSU, at the time I had a BeQuiet PSU which had 2 12v rails, it didn't matter which one I used I got the same problem. Replacing it with a 850 watt PSU with a fat single 12v rail has solved the issue but to this day I don't really know what the cause was other then 'bad PSU' which still seems a bit ridiculous given it's specs where ample to run a 6600XT.
 
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