My water temp slowly climbing during prime95 testing. Is it normal?

Kenmitch

Diamond Member
Oct 10, 1999
8,505
2,250
136
Just rebuilt my rig the other day with the microcenter 2500K/P8P67 Pro combo and have been doing some stress testing.

Currently testing my rig at 4.7ghz as it's the highest I've gotten and have still been able to have S3 sleep fully functional.

Testing with the latest version of prime95 I could find v26.6 build 3

So I'm thinking maybe this is normal....But my water temp has slowly been climbing and has stabalized after about 30 minutes or so of small fft torture test. I don't have any fancy sensor in my loop. I just kinda use my idle GPU temps as a base for the increase in water temperature. When I started the prime95 my idle GPU temp was 33*C and it currently climbed up to 38*-39*C goes back and forth between the two. Primitive way to guess the water temp rise but seems like it works!


Case is a Cooler Master HAF 932

My water cooling setup has the following items with the loop in the order that they are listed.


Swiftech MCP355 with XSPC Acetal Top
XSPC RX240 top mounted with 2 120mm Scythe SFF21E's in pull configuration
Swiftech Apogee XT
Black Ice Xtreme X-Flow 120.1 Radiator mounted to rear of case with a single 120mm Scythe SFF21E in pull configuration
Heatkiller GPU-X 58x0 full water block
XSPC mini resevoir
Using the standard 1/2" hose and barbs distilled water and a silver coil in the resevoir.

A visual if it's confusing :)

HAF932_2500K.png


Would faster fans help? Larger upper rad?

Thanks


 

Zap

Elite Member
Oct 13, 1999
22,377
7
81
I believe this is normal operation. Nothing to worry about. Larger rad or faster fans will give you lower temperatures, but won't make it stop climbing over time. It'll just end at a lower temperature than you get now.
 

Kenmitch

Diamond Member
Oct 10, 1999
8,505
2,250
136
I believe this is normal operation. Nothing to worry about. Larger rad or faster fans will give you lower temperatures, but won't make it stop climbing over time. It'll just end at a lower temperature than you get now.

Thanks....That's what I was kinda figuring :)

I think I can live with the temps at 4.7ghz

Just under 4hrs of prime95 small fft's torture test

47ghz_prime.png


Wonder what the stock cooler would be at running at stock speeds