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Unread 01-03-2006, 12:47 AM   #20
Mathelo
Cooling Neophyte
 
Join Date: Jul 2005
Location: Connecticut
Posts: 63
Default Re: Funky Swissflow readings?

I've spent a considerable amount of time with the beast today. First things first. These foil temp sensor needed to be calibrated. They were way off. I don't have the greatest equipment for calibration but I do have a lab grade mercury thermometer and a digital thermometer we use for cooking. The two were within 1 degree of each other and I was able to use the two to get most of my temps set. Wish I could say that for the CPU temp. Just a tough place to get.

In any case, this is where I ended up. Temps are “better” than I had previously reported but strange. Remember, this is still without any oc but case is opened up for better airflow:

At Idle:
Mobo CPU reading = 32c
IHS (analogue sensor)= 32c
Water = 31c
Ambient = 23c

After running CPUBurn = K7 high for 60 minutes:
Mobo CPU reading = 39c
IHS = 34.5c
Water = 32.5c
Ambient = 22.5c

Here’s what I previously reported:
Mobo CPU/IHS: 40C
Water: 39C
Ambient: 22C

So the water temp has improved considerably and I have a high degree of confidence in their accuracy. I can’t say the same about the CPU or IHS temps. I calibrated the IHS temp to match the Mobo CPU temps at idle but if that spread as the CPU heats up is accurate, it strikes me that the IHS is acting more as an insulator than a conductor. I used Artic Silver 5 for mounting the Storm. I understand this paste need some time to develop maximum efficiency.

Curious what you guys think of these numbers?

The Swissflow is still showing 170 to 175 pulses per second. My next step is to plug it into a mobo fan header and take a reading there and see what it tells me. That will either confirm the T-Bal reading or tell me there is something off in the T-Bal software.

Louis

EDIT
I went back and read some of pHaestus's water block reviews and now see that the CPU - Water Delta is about right (6.5C). If anything it is low, but I'm measuring the temp on the exit side of the block.

Last edited by Mathelo; 01-03-2006 at 02:23 PM.
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