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3090 secret memory PerfCap

I pasted some Thermal Grizzly on the bottom of the Spire heatsink and that's done the job. No more thermal throttling. It's now only throttling due to the power limit and running a sustained memory overclock of +1300 and 2000 MHz GPU core clock.
 
Fuzzb3k said:
I pasted some Thermal Grizzly on the bottom of the Spire heatsink and that's done the job. No more thermal throttling. It's now only throttling due to the power limit and running a sustained memory overclock of +1300 and 2000 MHz GPU core clock.
Click to expand...

Hey, thanks for the link to this thread. Could you post the raw pic without the thermal mode please so I can see what you did?

I'm looking to get some thermal grizzly 3mm pads for the mem and backplate and then some 2.5 mm to replace the factory ones by core.

I had seen redpanda from redpanda mining have to do this. Didn't fancy ruining my warranty though.
 
I thought the right to repair meant this warranty rubbish was going away?

You can still remove stickers so its hard to tell you opened it up.
 
Th0nt said:
I thought the right to repair meant this warranty rubbish was going away?

You can still remove stickers so its hard to tell you opened it up.
Click to expand...

I have no idea. But if that's the case. I'm happy to 'fix' this flagship Aorus model.

Just can't seem to find the sweet spot without some thermal help, chips reading 108C with +750 on mem fans 100% don't care about the noise. Just want the efficiency a bit higher.
 
Smiffy-UK said:
Hey, thanks for the link to this thread. Could you post the raw pic without the thermal mode please so I can see what you did?

I'm looking to get some thermal grizzly 3mm pads for the mem and backplate and then some 2.5 mm to replace the factory ones by core.

I had seen redpanda from redpanda mining have to do this. Didn't fancy ruining my warranty though.
Click to expand...

Sure, here you go:



I pasted some Thermal Grizzly over the backside of the GPU and memory chips, then secured the heatsink with zip ties and pointed the fan at it. There wasn't enough clearance at the top to keep the fan mounted to the heatsink.
 
Fuzzb3k said:
Sure, here you go:



I pasted some Thermal Grizzly over the backside of the GPU and memory chips, then secured the heatsink with zip ties and pointed the fan at it. There wasn't enough clearance at the top to keep the fan mounted to the heatsink.
Click to expand...

That is truly savage and highly commendable :D
 
Fuzzb3k said:
. It looks like there is no way to monitor the temperature of the memory chips right now
Click to expand...
The latest HWinfo now includes Vram temps.

Screenshot-83.png
 
Joxeon said:
The latest HWinfo now includes Vram temps.

Screenshot-83.png
Click to expand...

This is really interesting as I have been doing some mining on my 3090 when not gaming and getting some low results with not being able to push the memory past +700. Now having used HWINFO I can see the RAM is hitting 100 degrees so I think the card is then thermal throttling as described.
 
Fuzzb3k said:
Sure, here you go:



I pasted some Thermal Grizzly over the backside of the GPU and memory chips, then secured the heatsink with zip ties and pointed the fan at it. There wasn't enough clearance at the top to keep the fan mounted to the heatsink.
Click to expand...

I have a old 980ti FE heatsink on the back of my EK watercooled EVGA 3090 XC3, the back plate used to get in the 80c (using a temp gun)around the back of the GPU, so that ram wouldn't be far off.

said heatsink only has direct contact (but is a vapor chamber )on a small portion of of the back plate. that alone brought temps down into the 60's adding a small quiet fan dropped it into the 40's.

I have a bigger longer normal aluminium heatsink comming soon that should cool the backplate better.
 
TT158 said:
That is truly savage and highly commendable :D
Click to expand...

Haha, yes it was a pragmatic / hacky workaround to a problem. Being a software developer I'm used to doing those! I'm sure there are more elegant solutions requiring more time and effort, but so long as it works then I'm happy.
 
Troezar said:
Whilst I admire the ingenuity it seems a lot of money to pay for a GPU only to have to ghetto rig some extra cooling.
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Very true. I'm having trouble accepting that the manufacturers didn't spot this as being a problem during the design stage. Surely they must test the cards at full utilization and monitor the effectiveness of their cooling solutions?
 
Fuzzb3k said:
Haha, yes it was a pragmatic / hacky workaround to a problem. Being a software developer I'm used to doing those! I'm sure there are more elegant solutions requiring more time and effort, but so long as it works then I'm happy.
Click to expand...

Very true. We should be looking at the screen, not the card!
 
Miners are reporting even higher temps, generally miners said they are seeing 100 - 110c on the memory junction temp in HW Info and this happens on both 3080 and 3090.
 
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