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7900 xtx help

baker012

baker012

baker012

Associate
Joined
6 Nov 2011
Posts
76
Hello All

I need some help. I've received my stock 7900xtx and I'm having issues. First off it sounds like a jet engine. It's like it comes out the box overclocked. I've put it back down to 2500 but I'm not a fan of the drivers any help with this? Next is it's performing really poor. My 3080 could get 11000 port royal and 16000 time spy. The 7900 xtx gets 10000 port royal and 11000 time spy. I'm running a 850watt power supply with an amd 3800x. Any ideas on what I can do? Otherwise it's going back.

Cheers
Baker0
 
Could try uninstalling the drivers using ddu and reinstalling,

Also you need to post temps the card is getting , GPU, hotspot and vram fan rpm and power used , at load and idle

Is the bios updated to latest and Sam/rebar enabled?
 
Thanks for the reply, ive tried using ddi and uninstalled but that doesnt work.
Im getting random lockups. temps are around 65-70 junction temp is hitting 110. gpu and mem are default. SAM and rebar are set.

This was interesting:

www.youtube.com

AMD 7900XTX Overclocking can lead to LESS performance... Here's how

Learn more about the Canvas lineup of Monitors from NZXT at https://nzxt.co/Canvas_JayGet your JayzTwoCents Merch Here! - https://www.jayztwocents.com○○○○○○ ...
www.youtube.com www.youtube.com

but Im not getting slow downs on the memory.
 
ok thank you, ive given up testing. Shouldn't be compromising on a card that's 1k and slower than a 3080, 2x the noise. Its 17 degrees in my room:)
 
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If it has a high junction temp it will hit thermal limits and performance will tank. That is why it is slower than a 3080 when it should not be.
 
This is interesting as I've seen these reports of 110C hot spot temps and extreme noise elsewhere. I've got the Sapphire MBA card, and have highs of GPU temp 70C, memory junction 90C and hot spot 92C. This is at 100% GPU usage of Red Dead Redemption 2 1440P mostly ultra settings over a session lasting 3 or 4 hours.

My fans never go about 63-65 at max, and I can't seem to hear any fan noise with my iPod wired headphones in (non-noise cancelling). Mine boosts to around 2800 mhz or so and I'm honestly really impressed by how quiet the fans are at around 1760rpm (65%). This could be because I'm coming from a crossfire 290x reference dual blower setup though! :cry:
baker012 said:
out of interest this power supply should be able to take this card shouldn't it??? CORSAIR - RM850x Modular ATX PSU - 850 W
Click to expand...
I'm actually using this same psu and it seems to be alright so far. Others more knowledgable than me have said 850W should be enough.
 
Seems few reporting high hotspot and fans going crazy it's throttling that's why getting low scores , looks like something is wrong with it I would rma it

Not looking good for AMD
 
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baker012 said:
Thanks for the reply, ive tried using ddi and uninstalled but that doesnt work.
Im getting random lockups. temps are around 65-70 junction temp is hitting 110. gpu and mem are default. SAM and rebar are set.

This was interesting:

www.youtube.com

AMD 7900XTX Overclocking can lead to LESS performance... Here's how

Learn more about the Canvas lineup of Monitors from NZXT at https://nzxt.co/Canvas_JayGet your JayzTwoCents Merch Here! - https://www.jayztwocents.com○○○○○○ ...
www.youtube.com www.youtube.com

but Im not getting slow downs on the memory.
Click to expand...

There are a few people on other forums reporting 110c temps as well, it shouldn't be that high, you can try reseating the heatsink and applying new thermal pads yourself or RMA it

Reddit - Dive into anything

www.reddit.com www.reddit.com


Reddit - Dive into anything

www.reddit.com www.reddit.com
 
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I've spent a couple of days playing with mine trying to identify any specific problem. I was using the MCT tool to change the limits and observe the result.

What I observed is that on standard settings despite how I mount the GPU in my large Phanteks P500A case eventually the temps creep up to the point the GPU can't control the junction temp in particular. The actual GPU temp never went above low 70C (usually between 50-60C) even though the junction temp has maxed the sensor at 110C. Despite the clocks lowering and the fans ramping the temp keeps increasing to the point the fans max at 2800 RPM. I actually think the fan speed ramping ends up worsening the situation by recirculating hotter and hotter air. The vapour chamber being very efficient at moving heat/energy just stuffs it back into the GPU!

My solution was to mount the GPU vertically. Leave the side panel off. Use the MCT tool to set the power limit to 95% and limit the fans to say 75% max. That way the heat death cycle can't start! Games would eventually crash when the temp stayed high.

Maybe may the GPU has a cooler mounting issue or faulty vapour chamber. Maybe it can be fixed with drivers/firmware but I can't rely on that happening so will return it.
 
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bimbleuk said:
I've spent a couple of days playing with mine trying to identify any specific problem. I was using the MCT tool to change the limits and observe the result.

What I observed is that on standard settings despite how I mount the GPU in my large Phanteks P500A case eventually the temps creep up to the point the GPU can't control the junction temp in particular. The actual GPU temp never went above low 70C (usually between 50-60C) even though the junction temp has maxed the sensor at 110C. Despite the clocks lowering and the fans ramping the temp keeps increasing to the point the fans max at 2800 RPM. I actually think the fan speed ramping ends up worsening the situation by recirculating hotter and hotter air. The vapour chamber being very efficient at moving heat/energy just stuffs it back into the GPU!

My solution was to mount the GPU vertically. Leave the side panel off. Use the MCT tool to set the power limit to 95% and limit the fans to say 75% max. That way the heat death cycle can't start! Games would eventually crash when the temp stayed high.

Maybe may the GPU has a cooler mounting issue or faulty vapour chamber. Maybe it can be fixed with drivers/firmware but I can't rely on that happening so will return it.
Click to expand...
returning was the smart choice :) hopefully the replacement works a lot better!
 
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