So, pulling that info, I get this:
Firestorm 5.0.1 (52150) Dec 10 2016 14:44:37 (Firestorm-Releasex64) with OpenSimulator support
Release Notes
You are at 157.5, 139.7, 61.7 in Thumbelina located at sim10629.agni.lindenlab.com (216.82.52.191:13019)
SLURL: http://maps.secondlife.com/secondlife/Thumbelina/158/140/62
(global coordinates 263,070.0, 209,292.0, 61.7)
Second Life Server 17.05.05.326149
Release Notes
CPU: Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz (3407.99 MHz)
Memory: 8131 MB
OS Version: Microsoft Windows 10 64-bit (Build 15063)
Graphics Card Vendor: NVIDIA Corporation
Graphics Card: GeForce GTX 960/PCIe/SSE2
Windows Graphics Driver Version: 21.21.0013.7654
OpenGL Version: 4.5.0 NVIDIA 376.54
RestrainedLove API: (disabled)
libcurl Version: libcurl/7.47.0 OpenSSL/1.0.1i zlib/1.2.8
J2C Decoder Version: KDU v7.8
Audio Driver Version: FMOD Ex 4.44.61
LLCEFLib/CEF Version: 1.5.3-(CEF-WIN-3.2526.1347-32)
LibVLC Version: 2.2.4
Voice Server Version: Vivox 4.6.0017.22050
Settings mode: Phoenix
Viewer Skin: StarLight (Silver Blue)
Font Used: Ubuntu Font Family (96 dpi)
Font Size Adjustment: 2 pt
UI Scaling: 1.5
Draw distance: 128 m
Bandwidth: 500 kbit/s
LOD factor: 2
Render quality: High-Ultra (6/7)
Advanced Lighting Model: Yes
Texture memory: 1024 MB (1)
VFS (cache) creation time (UTC): 2017-5-24T8:59:39
Built with MSVC version 1800
Packets Lost: 141/1,132 (12.5%)
May 24 2017 14:48:28 SLT
As for modem, I know it's a U-Verse modem that's, at most, 2 years old, through AT&T. It's crummy, at best, but I've never had issues with it before and I haven't made any changes to network connection or anything lately.
As for overheating, the viewer doesn't even run long enough for my fans to bother kicking in. Not to say it isn't a possibility, however for the entirety of the time of owning this tower, I've never once experienced it overheating. I can/will check to see how it looks when I get a chance, though.