Corsair H100i i7-4470k 99 degrees

[The_Big_Brit]

I custom ordered a PC around 4 weeks ago with the following specs:

Case: COOLERMASTER CM STORM TROOPER - GAMING ENTHUSIAST CASE
CPU: Overclocked Intel® Core™i7-4770k Quad Core (3.50GHz @ max 4.40GHz)
Motherboard: ASUS® SABERTOOTH Z87: USB 3.0, SATA 6.0GB/s, THERMAL ARMOR
Memory (RAM): 16GB KINGSTON HYPER-X GENESIS DUAL-DDR3 1600MHz, X.M.P (2 x 8GB KIT)
Graphics Card 3GB NVIDIA GEFORCE GTX 780 Ti - 2 DVI, HDMI, DP - 3D Vision Ready
1st Hard Disk: 500GB Samsung 840 EVO SSD, SATA 6Gb/s (upto 540MB/sR | 520MB/sW)
2nd Hard Disk: 3TB 3.5" SATA-III 6GB/s HDD 7200RPM 64MB CACHE
1st DVD/BLU-RAY Drive 24x DUAL LAYER DVD WRITER ±R/±RW/RAM
Memory Card Reader: INTERNAL 52 IN 1 CARD READER (XD, MS, CF, SD, etc) + 1 x USB 2.0 PORT
Power Supply: CORSAIR 750W RM SERIES™ MODULAR 80 PLUS® GOLD, ULTRA QUIET
Processor Cooling: Corsair H100i Hydro Series High Performance CPU Cooler
Thermal Paste: ARCTIC MX-4 EXTREME THERMAL CONDUCTIVITY COMPOUND

For the first few weeks the computer sat around 35 idle going up to around 60 heavy gaming.

Over the last few days I have noticed extremely high CPU temperature of 99 when gaming. It sits at exactly 99 not above or below.
Lighter games such as Factorio it sits around 60, with bigger games Skyrim, Tomb Raider sitting at the 99.
Idle it currently sits at around 52.

It almost appears as if the CPU does not adjust to the increased load, either that or the pump is faulty?
If I restart the PC after gaming the BIOS throws up a CPU over-temperature error. I have tried re-seating and re-applying thermal paste and this had no impact on the temperatures.

I was hoping someone could shed some light on this for me.

Idle:
http://puu.sh/922Oh.png

Factorio:
http://puu.sh/922Qs.png

Skyrim:
http://puu.sh/923dL.png

 

[steaky360]

If your pump was faulty etc. I'd have guessed the CPU would cook and go above 99deg. Seems as though something else might be awry. Have you contacted PCS about this?

You could try to install the corsair link or asus suite software and see if you can amend the fan profile for the CPU and make it more aggressive (ie fans come on earlier and ramp up quicker etc.) see if that makes any difference.

 

[The_Big_Brit]

Thanks for the reply,
I did send off an e-mail on Saturday, but obviously with the weekend and the bank holiday there hasn't been a reply yet. Looking at the Corsair Link software this only shows my 780ti fans; also in the Asus AI Suite II I cannot find an option to adjust any of the fan speeds or curves however it does display the current fan speeds. I know the fans are plugged in as they are working when I took the side off. Something is causing the fans to not increase RPM under load increase, or a fan is plugged into the wrong header? I guess I'll have to wait for a reply from the PCS team.

 

[steaky360]

The fans should be plugged into the H100i I believe - then the H100i is plugged into the CPU FAN header on the motherboard and a SATA cable (for power) - you should be able to see this if you take a look.

Have you changed the fans at all? Or are they as PCS installed them?

 

[tom_gr7]

This is what I would do.

- Take off the side panel and have a look to see if the H100 fans are spinning.
- Have a look at the cpu block. Does it feel like it's loose? Or Wobbly?
- It could be a poor connection between the cpu block and the cpu itself. - Ie too much thermal paste, or the block isnt screwed onto the unit evenly.
- It could be due to the overclock, although, even with the OC it shouldn't go that high.
- I'd also give PCs a call.

 

[The_Big_Brit]

Both fans are connected to what appears to be a joiner going into the top of the CPU block. The block is connected to the power cable, there is a single pin cable going into the motherboard fan header on the same cable as the power. Also a cable coming out the side of the block and disappearing down to the bottom of the motherboard. Block is tight to CPU but is very hot to touch. One pipe hot up to about half way with the other one cold. I have removed the overclock be setting BIOS to optimized defaults AFTER temperatures started to get higher, but it did not change them. I have left the fans as they came.

I'll try giving PCs a ring first thing tomorrow.

EDIT:

Asus AI Suite is showing the lower temperature of 88 degrees whilst HWMonitor shows 99.
It seems to show consistently -10 degrees lower. Something can't find the actual temperature of the CPU?

 

[tom_gr7]

sounds like a faulty h100 to me mate. If the pump is hot, sounds like it could have failed. - they aint supposed to be hot afaik

 

[A314159]

Why didn't you get a WD HDD???