Hi swogerino,
Thks for answering my post, Regarding the gpu u have (ventus 2x) if you 've been mining with it for a year and half i presume you have the first version (which has samsung memory , the ventus 2X OC1 (actual model) and the ventus 3X OC have Hynix) it is also thicker than the actual model (it was derived fron the 3070 from what i read) and therefore has better cooling than the actual ventux 2x. Anyway i do not have the problem (yet) with the Ventus 2x. I do not know if i explained my problem correctly : I have 20 cards (10 ventus 2x OC1 and 10 ventus 3x OC ) in 2 rigs . They are all about 6 months old (i will not dwell on the obvious warranty issue since i live in Argentina (that says it all)). I have some Ventus 3x on Rig1 and some on Rig2. I am running HiveOS (but its trivial on windows it's the same) I have run into the situation where all cards (ventus 3x) on both rigs are running perfectly... Then some (again ventus 3X) started to degrade (crashing) -> Reduced the OC settings (obviously on the crashing cards) -> to cannot mine anymore on these cards (17-21 Mhs). I have now 4 Ventus 3x in this state (which i took out from the rigs) . I figured i needed to change the thermal paste and pads and upon opening the GPU its OBVIOUS that there is a problem with the pads : they are squashed and dripping with oil (yes it's that bad) i will post some pics if possible. although it does not really show the oil on the pics.
Upon replacing the pads (on the VRAM and the VRM's) and the thermal paste : No improvements ( i cannot mine with the cards even without OC (51Mhs) it will crash). The pads i tried are 2mm , 2.5mm (Maxtor) and 3mm (Gelid-Extreme) which are quality pads but stiffer than the "originals" which seem VERY soft (therefore VERY CHEAP...) and maybe that's the solution. I sent a ticket to MSI here are their answer : "...The thickness of your thermal paste is 2.25~2.5mm. According to the company's requirements, I cannot provide the brand of thermal paste..." they probably meant PADS not too many details in their response. One guy replied to my post (exact same as this one) ont he MSI forum. He has a ventus 3x was mining on windows with a hashrate of ~57 Mh/s. Figured he could improve that by changing the thermal paste and pads and guess what he is mining at 17 Mh/s now (with a Gpu temp of 41C, at least he is running cool :-)) just like me the guy tried 2mm, 2.5mm and 3mm pads to no Avail....
https://forum-en.msi.com/index.php?threads/msi-rtx-3060ti-ventus-oc-3x-issues.377118/I would be really interested in hearing about somebody who replaced the pads or only the thermal paste on his Ventus 3x and got somethg running "normally"). I actually tried (on the last failing card) to only replace the thermal paste and clean (remove the oil on the chips and the pads themselves) without removing the pads. It DID NOT SOLVE the problem.
Now regarding ur friends using the ventus 3x , just like have now perfectly running ventus 3x (6 of them), until the problem arises and they will face the exact situation i am in Guaranteed : a GPU that you can use to browse the web and open a spreadsheet .... Again i feel really frustrated about the whole adventure but i really appreciate ur feedback :-)