Accellero Extreme III for 5700XT (the glue/thermal pads..)

caliberlife · 24 Aug 2019 at 11:06

Hi guys,

So I've today purchased the Extreme III with plastic 1mm washers, 2.5 nuts, and 5g of Kryonaut Thermal Paste.

I have a few questions from things I've read over the net.

People talk about don't use the "glue" are they referring to the thermal paste or is this actually a separate compound and is actually glue and people are saying don't use it on the heatsinks that will be attached to the VRMs etc...

Another question I have is:

Can I use the Krynoaut thermal paste on the VRM Heatsinks as well as the GPU core and not the thermal pads or this so called "glue" people speak of as above? Or should I use thermal pads for the VRM Heatsinks?

Thanks guys for your input and clarification for me.

Grandmaster Fap! · 24 Aug 2019 at 12:51

Been a while since i used an Accelero but on mine the ram/vrm sinks had thermal pads on them, make sure you clean the chips good and the sinks will just stick nicely but will come off with a gentle twist. If the pack comes with some thermal glue id be nervous of using it as when it comes time to get the sinks off id be worried of ripping the chips off too!

Just use the paste on the GPU itself, the thermal pads on the ram will do a good job

caliberlife · 24 Aug 2019 at 13:00

Grandmaster Fap! said:
Been a while since i used an Accelero but on mine the ram/vrm sinks had thermal pads on them, make sure you clean the chips good and the sinks will just stick nicely but will come off with a gentle twist. If the pack comes with some thermal glue id be nervous of using it as when it comes time to get the sinks off id be worried of ripping the chips off too!

Just use the paste on the GPU itself, the thermal pads on the ram will do a good job

Thanks I’ll do just this. It all comes tomorrow and I will update you all

caliberlife · 25 Aug 2019 at 18:36

Okay so fitted it. All working better than expected.

1.050v
1950mhz core
900mhz memory

Can’t hear fans and temps are
60-70 degrees core
78-82 junction

The biggest surprise is that my game plays have stopped stuttering.

Grandmaster Fap! · 26 Aug 2019 at 01:04

Good stuff, you could probably use afterburner to set a fan curve, i use it set to 1/1 and it never gets above 60c on my 1070

caliberlife · 26 Aug 2019 at 09:15

So I’ve downloaded MSI afterburner.

Thanks for that tip. And I’ve noticed my memory temperature hit 100-104 when gaming to see how high the temp goes.

I’m using the accellero extreme heat sinks but they are halfway off the chips as the cooler won’t allow them to fully fit.

Firstly.... is this tempature okay for the memory chips?

secondly are thin copper heat sinks any good ?

Grandmaster Fap! · 26 Aug 2019 at 11:40

Is that actually your mem temp or are you reading the VRM temp? Im an Nvidia guy so have no clue how an AMD reads temps. Firstly 100c for ANYTHING is not great, can you take a pic of the problem with the sinks? they should make good contact, if they are half hanging off then they arent doing anything but trapping more heat.

caliberlife · 26 Aug 2019 at 12:42

Yeah the memory temps. I basically followed this ...

You will see they are half not covering the memory chips

https://linustechtips.com/main/topic/1086542-accelero-xtreme-iii-and-iv-5700xt-tips/

Idle they are about 40 degrees and when gaming about 84 then eventually 92-100 degrees

caliberlife · 26 Aug 2019 at 12:49

I did have to use the tiniest blob of thermal glue on one side of the heat sinks on each for it to stick and then a bigger blob of kryonnut thermal paste .. hopefully I can get them heatsinks off once i try heat the card up after gaming. Switch off the pc and quickly dissemble the card and try remove them by lightly twisting... what you guys think?

varkanoid · 26 Aug 2019 at 13:21

Should never use glue on the RAM chips or VRM as when you come to sell the card it leaves a mess or you struggle to get them off.

This is what you should use https://www.overclockers.co.uk/akasa-ak-tt12-80-thermal-adhesive-tape-th-001-ak.html used it for years never had a problem with it.
Using half a heatsink Ive had to do this before on a couple of RAM chips (nvidia) but never on as many as in that picture. They should be okay. I didnt know you could see the
MEM temps with AMD cards. VRM's are okay upto 120c they are designed to run hot but you need to aim for about 90-100c or less. Not sure with RAM.

caliberlife · 26 Aug 2019 at 14:16

varkanoid said:
Should never use glue on the RAM chips or VRM as when you come to sell the card it leaves a mess or you struggle to get them off.

This is what you should use https://www.overclockers.co.uk/akasa-ak-tt12-80-thermal-adhesive-tape-th-001-ak.html used it for years never had a problem with it.
Using half a heatsink Ive had to do this before on a couple of RAM chips (nvidia) but never on as many as in that picture. They should be okay. I didnt know you could see the
MEM temps with AMD cards. VRM's are okay upto 120c they are designed to run hot but you need to aim for about 90-100c or less. Not sure with RAM.

I’ve not tried to remove the heatsinks yet, what would be the easiest way but I used like 1/10 of the heatsink area - of glue on the near side of the heat sink so near the edge of one side and then used a big blob of normal paste in the middle of the heat sink on each of the heat sinks I did this.

caliberlife · 26 Aug 2019 at 17:56

Okay update ... I used two blower fans on each side of the GPU on the top and bottle to blow into the memory heat sinks to keep temps lower temporary while I game. Hit 90-95 and max 96. Then once heated I got a toothpick and I lightly stroked the white glue and it was soft so with the little I applied it’s safe to say I can remove the heatsinks.

Question... can I use the stock memory thermal pads... they are about 2mm thick.... the heat sinks do stick to them but with enough light pressure they can come off. Will this be fine to use ? It won’t drop off will it ? Lol

Grandmaster Fap! · 26 Aug 2019 at 17:58

No they wont drop off if you clean the chips well. I always just used a pencil eraser to get any residue off them, never had any sinks fall off

varkanoid · 26 Aug 2019 at 18:36

caliberlife said:
Okay update ... I used two blower fans on each side of the GPU on the top and bottle to blow into the memory heat sinks to keep temps lower temporary while I game. Hit 90-95 and max 96. Then once heated I got a toothpick and I lightly stroked the white glue and it was soft so with the little I applied it’s safe to say I can remove the heatsinks.

Question... can I use the stock memory thermal pads... they are about 2mm thick.... the heat sinks do stick to them but with enough light pressure they can come off. Will this be fine to use ? It won’t drop off will it ? Lol

yes they may fall off, thermal pads are not "sticky" they are just to cushion the RAM between chip and heatsink to fill any gap and have thermal transfer properties the stock heatsink screwed on holds them in place - without it nothing holds them in place you need something like the Akasa thermal sticky tape - its too risky in my opinion.

caliberlife · 26 Aug 2019 at 19:40

I’m trying these pads from the stock cooler and it’s working highest temp on memory is 82 !!

The glue easily come off too I’m so happy lol

caliberlife · 26 Aug 2019 at 20:19

Although the room right now is 30 degrees how big does room ambient temp make ?

Grandmaster Fap! · 26 Aug 2019 at 23:46

varkanoid said:
yes they may fall off, thermal pads are not "sticky" they are just to cushion the RAM between chip and heatsink to fill any gap and have thermal transfer properties the stock heatsink screwed on holds them in place - without it nothing holds them in place you need something like the Akasa thermal sticky tape - its too risky in my opinion.

Ah yeah apologies @caliberlife , @varkanoid is correct, thermal pads dont stick, just transfer heat, i was talking about thermal tape, usually tape is on the bottom of Accelero ram sinks so you just stick them on, was nothing pre-applied?

caliberlife · 27 Aug 2019 at 04:41

Grandmaster Fap! said:
Ah yeah apologies @caliberlife , @varkanoid is correct, thermal pads dont stick, just transfer heat, i was talking about thermal tape, usually tape is on the bottom of Accelero ram sinks so you just stick them on, was nothing pre-applied?

Nothing was pre-applied no

But I did try the thermal pads and they seem to stick a little if I press the heat sinks firmly down on them. Maybe I’ll have to get some tape in case

caliberlife · 27 Aug 2019 at 06:49

This is worrying I asked sapphire about their Samsung chips they use what is the highest temp they can max out at ...

SAPPHIRE CUSTOMER SUPPORT TICKET
*** This is an automatically generated email, please do not reply ***

Sorry that we don't have this information , you just need to focus on GPU temp.

Thanks.

varkanoid · 27 Aug 2019 at 12:40

caliberlife said:
Nothing was pre-applied no

But I did try the thermal pads and they seem to stick a little if I press the heat sinks firmly down on them. Maybe I’ll have to get some tape in case

They used to provide the thermal tape but AC now just tend to apply the glue. Once you put it on you need to leave it alone for 24hrs to cure. Thermal tape usually needs about an hour.