str8_an94baller Posted December 28, 2019 Share Posted December 28, 2019 (edited) Hi, I'm having quite the difficulty in trying to overclock my R9 3950x. I'm especially concerned in temperature difference between CCD1 and CDD2, because my difference between ccd1 and ccd2 is almost 15-20c. While the power draw is slightly different, between CCDs, I'm not exactly sure what's causing this issue to happen. I have a prefilled water cooler by Swiftech (Drive x3 360mm AIO cooler, Apogee SKF LT waterblock, 3x Gentle Typhoons). The cooler itself shouldn't have any problem handling small power draw of around 150w-170w. But the high temps of CCD1 limits my ability to set a manual OC. I'm not interested about clocks for now. I want to fix the temperature differences between chiplets. Mounting and thermal paste spread https://i.imgur.com/ZzeOv3D.jpg https://i.imgur.com/C4vavUT.jpg Temperatures (hwinfo) cinebench r20 prime95 adobe premiere System details AMD RYZEN 3950X ASUS Crosshair 8 Hero Wi-Fi motherboard 2x16GB DDR4 (G.skill) 3600C16 Windows 10 Pro x64, latest AMD Chipset driver Swiftech (Drive x3 360mm AIO cooler, Apogee SKF LT waterblock, 3x Gentle Typhoons) I have 1 fan pointed on the back of motherboard socket Edited December 28, 2019 by str8_an94baller Quote Link to comment Share on other sites More sharing options...
Splave Posted December 28, 2019 Share Posted December 28, 2019 Are you starting hw monitor after you start prime 95? I'm assuming you aren't really idling at 60c<+? Try disabling pbo and all the turbo stuff and lock in 4ghz 1.3v and see if it evens out. Quote Link to comment Share on other sites More sharing options...
str8_an94baller Posted December 30, 2019 Author Share Posted December 30, 2019 On 12/28/2019 at 9:07 PM, Splave said: Are you starting hw monitor after you start prime 95? I'm assuming you aren't really idling at 60c<+? Try disabling pbo and all the turbo stuff and lock in 4ghz 1.3v and see if it evens out. Hi, I don't have hwmonitor installed. So only using HWinfo 64. The idle is lower but still have nasty temperature difference. 4GHz 1.3v will result in thermal throttling (95c). Idle temperatures picture (I have stuff open on the background) Quote Link to comment Share on other sites More sharing options...
Crew Leeghoofd Posted December 30, 2019 Crew Share Posted December 30, 2019 (edited) Is there a boxed Wraith fan included, I strongly suggest to give that a spin. Temps are way too high no matter how good the specs of that Swiftech kit look on paper. Maybe the block is too restrictive in flow for the pump to handle. This particular waterblock also might not be good enough for this gen of CPUs Edited December 30, 2019 by Leeghoofd Quote Link to comment Share on other sites More sharing options...
Sparks.nl Posted December 30, 2019 Share Posted December 30, 2019 8 hours ago, Leeghoofd said: Is there a boxed Wraith fan included, I strongly suggest to give that a spin. Temps are way too high no matter how good the specs of that Swiftech kit look on paper. Maybe the block is too restrictive in flow for the pump to handle. This particular waterblock also might not be good enough for this gen of CPUs There are no boxed coolers included for Ryzen 3950x. 1 Quote Link to comment Share on other sites More sharing options...
Splave Posted December 30, 2019 Share Posted December 30, 2019 Idle temp is still high should be in the 30s did you remove the plastic cover on the face of the water block. Quote Link to comment Share on other sites More sharing options...
str8_an94baller Posted December 31, 2019 Author Share Posted December 31, 2019 (edited) 16 hours ago, Leeghoofd said: Is there a boxed Wraith fan included, I strongly suggest to give that a spin. Temps are way too high no matter how good the specs of that Swiftech kit look on paper. Maybe the block is too restrictive in flow for the pump to handle. This particular waterblock also might not be good enough for this gen of CPUs 8 hours ago, Sparks.nl said: There are no boxed coolers included for Ryzen 3950x. Yes, there's no boxed cooler included with my CPU. Apogee SKF LT is supposed to be one of the most (if not the most) restrictive flow blocks on the market, but the pump seems strong on the Drive X3 kit. It says Max. Static Pressure 2.8 mH₂O Max. discharge 11 l/m I'm not sure if it's good or not. I'm thinking of just buying a highend waterblock like Optimus AM4 (https://optimuspc.com/products/foundation-cpu-block-amd?variant=31139815751763) and replacing the preinstalled one, but I don't know if it will fix the problem. Previously I was cooling around 240w (5820K 4.6/1.365v) and reached around 86-88c max (IHS is warped slightly), so it doesn't make sense why this cooler is struggling with a lower heat output (150-180w). Maybe the fins of the waterblock don't cover the CCD1? I can test Noctua NH D15 (with AM4 mounting kit) but I'm not sure if it will perform any better. 2 hours ago, Splave said: Idle temp is still high should be in the 30s did you remove the plastic cover on the face of the water block. I made sure that I did. I used the cooler previously with a 5820K. I also included pictures of the mounting spread of thermal paste. Mounting and thermal paste spread (please double check pictures to make sure I didn't do anything wrong. https://i.imgur.com/ZzeOv3D.jpg https://i.imgur.com/C4vavUT.jpg Also to mention I am using LLC3 (out of 5) on the motherboard. The performance enhancer setting is turned off (auto). Edited December 31, 2019 by str8_an94baller Quote Link to comment Share on other sites More sharing options...
Crew Leeghoofd Posted December 31, 2019 Crew Share Posted December 31, 2019 (edited) Test the Noctua first before buying anything else. I have a gut feeling it might be the block or even the complete unit. I had a similar experience with testing Ryzen setups on my high end EK DIY setup, with a waterblock perfectly handling 5960X@4.8 and 6950X at 4.6 daily. Edited December 31, 2019 by Leeghoofd Quote Link to comment Share on other sites More sharing options...
Sparks.nl Posted December 31, 2019 Share Posted December 31, 2019 (edited) I am wondering which results you get if you turn the cpu block with 90 degrees. Even my Alphacool XPX Aurora had some temperature differences when rotating the block. I tested it before mounting the motherboard in it’s case. Idle temp should indeed be in 30’s. Edited December 31, 2019 by Sparks.nl Quote Link to comment Share on other sites More sharing options...
str8_an94baller Posted December 31, 2019 Author Share Posted December 31, 2019 2 hours ago, Leeghoofd said: Test the Noctua first before buying anything else. I have a gut feeling it might be the block or even the complete unit. I had a similar experience with testing Ryzen setups on my high end EK DIY setup, with a waterblock perfectly handling 5960X@4.8 and 6950X at 4.6 daily. Ok. Which EK block did you use? 1 hour ago, Sparks.nl said: I am wondering which results you get if you turn the cpu block with 90 degrees. Even my Alphacool XPX Aurora had some temperature differences when rotating the block. I tested it before mounting the motherboard in it’s case. Idle temp should indeed be in 30’s. 90 degrees right or left? If you see in the screenshot, CCD1 is around 10c lower. Which puts in in the 30-degree range. I heard that the XPX Aurora Pro is the best AM4 / TR4 block due to microfin size, but I'm not sure if that will fix the temp difference problem or fit on my motherboard. https://www.aquatuning.us/water-cooling/cpu-water-blocks/cpu-water-blocks/24776/alphacool-eisblock-xpx-aurora-pro-plexi-black-digital-rgb Quote Link to comment Share on other sites More sharing options...
Sparks.nl Posted December 31, 2019 Share Posted December 31, 2019 (edited) I was just thinking that your block might not cover the cpu cores for cooling it in a optimal way. I didn’t test rotating it to the right yet, just to the left, altough I don’t expect much difference between those. I expect much from a review of my block, I just didn’t find one yet. Edited December 31, 2019 by Sparks.nl Quote Link to comment Share on other sites More sharing options...
str8_an94baller Posted May 5, 2020 Author Share Posted May 5, 2020 On 12/31/2019 at 1:04 PM, Sparks.nl said: I was just thinking that your block might not cover the cpu cores for cooling it in a optimal way. I didn’t test rotating it to the right yet, just to the left, altough I don’t expect much difference between those. I expect much from a review of my block, I just didn’t find one yet. Sorry for a very late reply, but I just RMA'd the cpu and got a better one with 1-2c temp difference. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.