Intel i5-4690k in h100i temperatures... Are they normal? They don't seem to me.

that isnt high at all for idle. As for measuring temps at load I would suggest downloading Prime95 and running the small FFTs test, this will heat up your pc more than anything else out there. Then while you are doing that use HWmonitor or coretemp or a program similar to those to measuer your cpu core temps. Your temps are fine on haswell as long as they are below 80 in that test I would say although some would say they are fine higher or that 80 is way to high.

While I disagree with your friend due the noise levels, CPU temps depend greatly on ambient temps, CPU multiplier, cache multiplier, RAM speed and CPU voltages. Without that information, it's hard to say how good your cooler is doing.

if your voltage is .88v, it is underclocked(possibly 800 or 1000mhz?). this is normal, because intel set it to power saving mode when idle. Check your correct voltage under bios, or CPU-z when cpu is clocked to the proper speed.

regardless, your temps seems perfectly fine. don't worry about the temps. intel advertise the temp max should be 72c, which yours is nowhere near that range.

All the temps I was talking about were Celsius, forget Fahrenheit. Hose temps are all very very low. What did you use to stress and have you overclocked? It doesn't look like it but you have a lot of headroom to if you like.

What stress test ? If you want to compare, best thing would be for you to do some testing that you can compare with other users under identical situations.

1. Download RoG Real Bench, HWiNFO64

http://rog.asus.com/forum/showthread.php?43233-Realbench-v2-Discussion-Thread-Download-Links
http://www.hwinfo.com/download.php

2. When you open Real Bench, move both windows to left side of screen. Open HWiNFO64, run "sensors only", you may get a pop up asking whether to disable reading the say for example "Asus EC chip", click "Disable this sensor". Move the HWiNFO64 window to upper right hand corner of screen. Stretch bottom of window to full screen height. Make the following changes:

-Right Click on "System" right at the top, select hide.
-In the next section, hide the last 4 lines starting "Core CPU Thermal Throttling" (if you watch temps, this is useless)
-Skip over the next section and Hide the section after that (section includes CPU Package thru DRAM Power)
-Now the whole reasons we did that was so you could see everything you wanna see at same time. You should be able to see Vcore 0, 1 and 2 at -the bottom of the window. If not hide a few more lines. Save and Quit will save your edits.[/I]


3. Open Real Bench, select Benchmark Tab check all 4 boxes and run. NOTE: During the 3rd test Open CL will send AVX instructions to CPU; pay close attention to Vcores as they will spike

4. Record temps and voltages on each core along with the following:

CPU Multiplier
CPU Max Cache
CPU Min. Cache
DRAM setting
Actual RAM Speed - i.e. 1600
DRAM Volts
Ambient = Room Temperature
Coolant Temp at Idle
Idle Core Temps Before Test on Each Core = i.e. 25, 26, 24, 22
Average Core Temps for Each Core During Test = i.e. 59.6, 58.2, 52.7, 49.4
Max Core Temps During Test on Each Core = i.e. 65, 62, 59, 54

Optional
Settings you input in BIOS for VCore, VCC Ring (Cache), VCCIN (Eventual), DRAM i.e. 1.2000, Auto, 1.900, Auto
Actual Readings in HWiNFO64 for VCore, VCC Ring, VCCIN, DRAM i.e. 1.296, NA, 1.920, 1.681
Highest Voltage Reading on any Core During each of the 4 Benchmarks, i.e. Image Ed. 1.200 / Encoding 1.216 / Open CL 1.296 / Multitask 1.248

Pros are increased performance, depending on what you are doing it may or may not be niticeable.

The cons are potentially destroying or damaging the CPU or hurting it's lifespan. These happen when you over volt and or overheat the CPU. It's pretty easy to avoid.

The middle ground would be overclocking as much as you can while still using stock voltages. You probably could get to 4 ghz without a voltage change. This would cause no harm since you won't be overvolting and heat will stay the same more or less. Like I said before though that CPU is ice cold and could get quite a bit warmer before you would need to worry.