I've just completed a new build (my first), and I'm trying to determine how reasonable the temperatures I'm seeing are. So first thing I should do is describe the relevant portions of the build: Corsair Obsidian 650D (stock fans and configuration, connected to motherboard, not a fan controller.) Gigabyte GA-Z77X-UD3H Intel Core i5 3550 (Ivy Bridge) (Not OCed) Stock CPU cooler HIS Radeon HD 6870 IceQ (stock cooler and clock) Corsair AX750 Gold PSU (bottom intake, so probably not relevant) Now onto the temperatures. The ambient temperature is 75 °F (it varies by a degree or two). I took readings at idle. Then I ran Furmark (default settings, burn in test) for about 15 minutes, and took readings for loaded GPU. After letting things cool, I ran Prime95 on all cores for about an hour and took loaded CPU readings. Finally without stopping Prime95, I started another Furmark burn-in test. After about 20 minutes I took the both under load temperatures. Without further ado here are the temps: Code: Hardware Monitor| Idle | Furmark | Prime95 | Both | ======================================================= Cpu Cores | 28-33°C| 40-52°C| 76-83°C| 77-83°C| CPU Package | 32-34°C| 47-53°C| 83-86°C| 85-86°C| GPU | 37-38°C| 68-70°C| 39°C| 69-72°C| HDD | 25°C| 26°C| 26°C| 26°C| TZ00 | 28°C| 28°C| 28°C| 28°C| TZ01 | 30°C| 30°C| 30°C| 30°C| TMPIN0 | 34-35°C| 39°C| 36°C| 39-40°C| TMPIN1 | 37°C| 43°C| 40°C| 44-45°C| TMPIN2 | 23-25°C| 44-45°C| 75-76°C| 76-77°C| ======================================================= EasyTune | Idle | Furmark | Prime95 | Both | ======================================================= PCH | ~54°C| ~61°C| ~58°C| ~63°C| "Hardware Monitor" is, of course, CPU-ID's Hardware Monitor, while "EasyTune" is the Gigabyte utility included with the motherboard. The HDD shown is my mechanical drive, which is not in active use, and is spun down. The SSD does not appear to report temperatures. TMPIN0 is the general system temperature. TMPIN2 is the CPU socket temperature. TMPIN1 appears to be the PCH temperature, but Gigabyte's tool is adding 18°C to the reading. I'm going to guess that Gigabyte's tool is correct there. The PCH temps are fairly high (if gigabytes readings are accurate). I suppose this make sense though. The Z77 chipset runs hot and the heat-sink has poor airflow due to the graphics card covering most of it. I'm definitely not thrilled with the CPU temps. I suppose this means I should invest in aftermarket CPU cooler. One thing I do like about the stock cooler is that it is very low noise. The fan RPM for loaded is almost double that for idle, yet the only way I can tell the difference is by looking at the displayed RPMs. Any recommendations on an aftermarket air cooler? Ideally I'd like to shave off 10°C from the CPU loaded temperatures. I'm also somewhat price conscious (after buying the rest of my rig), and would prefer a cooler that provides "good bang for the buck". Other than the CPU temps, how do the rest of the temperates look? Is there anything I should be concerned about? Thanks.