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D-Link DIR-890L overheating - how to fix the stock cooling

Mussels

Freshwater Moderator
Joined
Oct 6, 2004
Messages
58,412 (7.77/day)
Location
Oystralia
System Name Rainbow Sparkles (Power efficient, <350W gaming load)
Processor Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard Asus x570-F (BIOS Modded)
Cooling Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory 2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s) Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage 2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s) Phillips 32 32M1N5800A (4k144), LG 32" (4K60) | Gigabyte G32QC (2k165) | Phillips 328m6fjrmb (2K144)
Case Fractal Design R6
Audio Device(s) Logitech G560 | Corsair Void pro RGB |Blue Yeti mic
Power Supply Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse Logitech G Pro wireless + Steelseries Prisma XL
Keyboard Razer Huntsman TE ( Sexy white keycaps)
VR HMD Oculus Rift S + Quest 2
Software Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores Nyooom.
This is mostly being posted so that people googling the DIR-890L overheating end up here and can fix this factory issue.

As much as i'd love to use my own pictures, the guide over here at ifixit has better pics

https://www.ifixit.com/Guide/D-Link+DIR-890L+Motherboard++Replacement/72067

I opened the router just enough to reach those shitty passive heatsinks and investigate - i wish i'd taken a picture but in my disgust i wiped it off too fast.

Suffice to say one heatsink was naked metal on metal - no TIM at all! and the other one had both a thermal pad *and* a generic paste that had long dried up (router is only a year old and ran 75C, idle and load the entire time i've owned it)

capture510.jpg


In boring summary - open the frigging thing up, replace that thermal paste (i used MX-4 on both heatsinks) and enjoy 20C lower idle temps like i am right now (67C to 53C in DD-WRT)
 
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