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EVGA 780 ACX Thermal pads

post #1 of 5
Thread Starter 
Hi everyone smile.gif

I'm selling on my card locally soon and just took it out to give it a clean and fresh TIM job, running a bit of Heaven to check temps and function afterwards and I have a bit of a query.

Temperatures are good on the core running on stock BIOS and settings for this card 1123 mhz solid about 70c peak at 61% fan speed in my case, about where it was before.

Thing is I'm getting perfcap reason PWR and Vrel in GPUZ while TDP is at about 90%, VDDC 1.162 (normal).

Now I dont remember when I first got the card whether this was what I got or not at stock originally, but its certainly been like this for a while, and it got me to thinking. The card comes with a support plate between the cooler and PCB, and although I have replaced the TIM a couple of times I've never replaced the thermal pads over the memory and VRM, I've never removed the plate at all.

As there are no VRM temp sensors on the reference PCB (why?) I'm a little worried that this may be because I have somehow loosened the pads while removing the cooler and VRM temps have risen.

Does this sound normal, or wear and tear behaviour to you, or does it indicate the VRMs might be running hotter in your experience?

All advice welcome, cheers.
post #2 of 5
Basically when you remove the GPU heatsink to do some cleaning or maintenance you actually need to check if the thermal pads are acceptable in thickness, disfiguration, tears or any other that may be considered as damaged and needs replacing.

Though time of use or several heatsink removal the pads needs some replacing and tend to cause minor inconsistensies with sensors or among others if left unanttended.

You may prep yourself with 1mm thermal pads, I would recommend the Fujipoly brand which I trust. You may choose from any of their models to fit your budget or go with the Extreme or Ultra Extreme package. Check the pricing to match your budget on amazon, frozencpu or if your local shops carry them.
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post #3 of 5
Thread Starter 
I appreciate you taking the time, first off I haven't seen the thermal pads because I didnt need to remove the supporting plate from the PCB, it stayed stuck on at all times,.

It looks like this when you take the cooler off. The chip itself is revealed but the rest of the PCB covered with a plate/passive heatsink



What I'm wondering is what I described above symptomatic of slightly overheating VRM's? I'm fairly certain there was never a PWR throttle at stock when I first got the card, just Vrel.

Essentially I dont want to pull the plate off the card and order thermal pads if its not going to make a difference, so if anyone knows any better if this could just be natural slight degradation over time. I want it to be available for sale ASAP if I can help it.

I know its not a major problem for the now as everything is working just fine no crashes artifacts anything I've been gaming on it today as well as running Heaven on a loop for a couple hours after I put it back together, but if I sell it to someone might it be for them in the next year, lets say? I just don't want to stitch anyone up smile.gif

If its a distinct possibility VRM overheating is the case, I can order some and replace them no problem
post #4 of 5
Thread Starter 
Bump to see if the night shift (my time zone) has anything to say.
post #5 of 5
Just inspect the pads if you don't want to replace them, that'll help balance things out in the end.
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