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VRM Temp Sanity Check

Demonic Donut
By Demonic Donut
in Graphics Cards
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About a year ago I put a Morpheus II cooler onto my 5700xt. I recently moved my desk, and therefore my tower, and the vrm heatsink came free. It was held on by the provided "Thermal Tape" which seemed to work ok, I had been meaning to use some thermal adhesive to attach all of the heatsinks to their respective components, but haven't gotten around to it yet.

 

I haven't wanted to pull my card to glue the adhesive on. I'll have to pull the cooler, reapply the liquid metal etc, and I'm feeling lazy.

 

Out of curiosity I tried gaming with no heatsink and VRM temps are reporting nearly the same as before or even with the stock cooler. Running furmark under the same scenario as before, my VRM temps are about 2 degrees higher than before, but with no heatsink.

 

My memory temps have creeped up some, about 4 degrees, so I'm planning to glue the heatsinks on to them for better thermal transfer. But part of me wants to just try removing the heatsinks that are on them and testing again to see if the heatsinks are insulating more than conducting.

 

Does this seem right? Are the temp sensors far enough away from the component that they aren't reading correctly or do they really just not need better cooling? I'm just shocked that direct airflow through the finstack is enough to cool the VRM.

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If you have a morpheus ii then you most likely have 120x25mm case fans instead of some 80~90x10~15mm fans on graphics cards from the factory. This significantly increases airflow when the fans spin up which could make heatsinks unnecessary.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: HP EX920 1TB PCIe x4 M.2 SSD + Crucial MX500 1TB 2.5" SATA SSD, 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally, 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172) left outside Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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16 minutes ago, Jurrunio said:

If you have a morpheus ii then you most likely have 120x25mm case fans instead of some 80~90x10~15mm fans on graphics cards from the factory. This significantly increases airflow when the fans spin up which could make heatsinks unnecessary.

I have 2 Noctua P12 redux fans on it. Usually I run them at about 75% when gaming, that way they are about as loud as my case fans at 60%. They move a good amount of air, I guess I'm just surprised at the low VRM temps with no heatsink.

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