shoes Posted November 5, 2010 Share Posted November 5, 2010 Hi, I came across a peculiar problem today that I was hoping maybe a PSU expert could provide some insight on. I have 2 "identically" configured computers running side by side but there are some small differences between the two. Here are the identical specs: Case: Cooler Master HAF X Cooling: Asetek 240mm liquid cooling (OEM) Motherboard: MSI X58A-GD65 CPU: Intel Core i7-980X GFX: 3x NVIDIA GeForce GTX 480 Audio: Creative SB Fatality champion whatever (in the PCI-e x1 slot at the top of the expansion stack on the GD65 board) DIfferent specs: Machine 1 PSU: Non Corsair but reputable brand TR2 1200W Memory: Non corsair but reputable brand 6GB @ 1600 HD: 2x 1TB 7200RPM in RAID 0 Machine 2 PSU: Corsair HX1000 Memory: Non corsair but (different) reputable brand 6GB @ 1600 HD: 2x non corsair 128GB SSD in RAID 0, 2x 1TB 7200RPM in RAID 0 When running CPUID's HWMonitor software, the value reported under TMPIN1 for each machine is in the 70C's for Machine 1, and in the 90C's for Machine 2. Some background: The TMPIN1 value is reporting the IOH chip temp. I confirmed this using a k-type thermocouple connected to a digital thermometer. The MSI X58A-GD65 board being used runs notoriously hot, but not this hot. I can accept temperatures in the 70's, but certainly not in the 90's and 100's. (temps in celsius) I have run some preliminary tests using different power supplies in the system exhibiting the higher temperatures. Test1: Swapped in a 1100W old non-corsair PSU i had laying around. Temperatures were markedly lower, nearly 20C. Test2: Swapped in a Corsair TX950. At first temperatures were 30C lower, but they rise back to the 90s. I have not yet ruled out that this particular motherboard just has a hot chip or bad thermal connection on the heatsink, but I am not ready to make that diagnosis yet given the discrepancies when using different power supplies. So I guess my question is: Why/how would using different power supplies in a system effect the temperature on the chipset? Is there any precedent for this? I have been building many computers for many years, most of them very high-end like this, and I have never encountered this particular problem before. Thanks for any help. shoes Link to comment Share on other sites More sharing options...
This topic is now archived and is closed to further replies.