Liquid cooling Paradox?!

[ProRules]

Hello guys, i own an RS360 Rasa 750 kit.

The WC loop is just about 5 years old, i did change the water atleast once in 8 months, usually once in half a year, and actually recently changed it.

About a year and a half ago, i opened my cpu block and cleaned it with vinegear (acidic), and a tooth brush, after letting it settle for few hours.

I also flushed my rad.

I can hear my pump working, i feel extremely good airflow from the radiator push fans, and vacum on the pull.

Good overall case airflow.

 

Now heres where it gets weird:

I have an 4770k, and i thought why the hell i can't make it stable, but it just so happen the pc can't even respond in time to post the temps on the monitoring program, beacause it jumps high so fast to make instant blue screen.

Running only at .. 1.3v 4.6ghz, so i lowered it to 1.265v and 4.4 just for measurements, and it didn't crash but hit 88C on prime 95, after... few seconds or half a minute.

So im touching both of my WC tubes, in and the Out of CPU block, and they both feel the same temp, and feel cold, which is weird right? at 88C cpu core temp, there must be a difference right? can it be the tubes are so wide that you can't feel the thermal difference?

Also 2 seconds after stopping prime it hit 22c on the cpu.

i realy am confused

[Arty]

I don't water cool, so take this with a grain of salt,  but i'm pretty sure ALL the fluid in a loop will always be the same temp. 

[ProRules]

2 minutes ago, Arty said:

I don't water cool, so take this with a grain of salt,  but i'm pretty sure ALL the fluid in a loop will always be the same temp. 

Well forgot to mention, it felt the same exact temp to the touch, on idle and on full load.

[stealth80]

It depends which version of prime you are using, theres a setting which needs to be disabled on Haswell CPU's as it causes them to overvolt.

 

Try this version is it doesn't use AVDX

 

http://www.afterdawn.com/software/system_tools/misc_system_tools/prime95_64-bit.cfm

 

The loop will feel the same for a while as it will need to dump the heat out of the loop, same as the loop didn't heat up to the same as the CPU

[Master Disaster]

Did you apply heat paste to your block before you mounted it?

[ProRules]

Just now, Master Disaster said:

Did you apply heat paste to your block before you mounted it?

Ofcourse, there's a reason it idle's at 20c.

trying the other prime.

[Master Disaster]

2 minutes ago, ProRules said:

Ofcourse, there's a reason it idle's at 20c.

trying the other prime.

Just checking, its always worth checking the basics.

 

Yes, its likely your using the version of Prime with the AVDX bug. Try AIDA64 or OCCT and see what happens.

[ProRules]

8 minutes ago, ProRules said:

Ofcourse, there's a reason it idle's at 20c.

trying the other prime.

Oh wow, Aida 64 Extreme, on full stress test, 65c on 1.27v, ecompared to almost 90C on prime.. so glad i asked here, thanks guys.

Once last question, how is it possible that there is a 14C difference between the hottest core and the coldest?

i applied the thermal paste with much patience and i spread it very well, could it be the intel's thermal paste below IHS?

Also i hope prime didn't just damage my cpu somehow.