Yeah, I've seen many mobo's with their NB and SB chipsets so hot, that they caused BURNS if you touch them! I immediately will put heatsinks on them, or fans, or both if they are really extreme. I cannot understand a manufacturer that will allow this, it only takes a few cents to put a heatsink on a chip. Certain chips may technically be within spec, (and I believe to be "theoretical"), but you have to take into account what that extreme heat will do to the REST of your PC that cannot deal with heat as certain mobo controller chips can. These chips essentially turn into a true "heater" and will heat up everything else--HD, optical drives, CPU, etc, that are NOT within those kinds of thermal specs. Take 104°C for example, that's 219°F, obviously beyond the boiling point of water which would cause serious burns if someone touched it, not to mention the wiring or cabling it could melt if contact were made. -Clint God Bless, Clint Hamilton, Owner www.OrpheusComputing.com www.ComputersCustomBuilt.com www.OrpheusComputing.com/cheap_reliable_web_hosting.html www.OrpheusComputing.com/PCworks-computer-help-email-list.html ----- Original Message ----- From: "Ben Moore" I did a Google search on northbridge and southbridge temps. What you are seeing is sort of high but not particularly unheard of especially if your system doesn't have active cooling on those controllers. A lot of systems don't. Controllers usually run hotter than the cpu. I found the intel spec sheet for one controller and the max temp is 104 C. That's nearly 30 degrees hotter than the max for a CPU. I you can identify your chipset for the controllers, Google will point to the intel specs. Like Clint said, I might be a little concerned about your CPU temps. If you are seeing 46 at no load, running something that is CPU intensive will put you up over 60 and that's high. You might try running some that stresses you cpu and see what the temps go up to. I've never been able to figure out what the motherboard temp is actually measuring. On some of my systems I "think" it's a pretty good reading of the inside the case temperature. On others I don't have a clue. Summer always makes computers run hotter than other times of the year. Your room temps are higher. You might want to make sure your case fan is running and that there isn't any dust clogging up you case vents. Make sure there is adequate air flow around your case. You could also see if there is active or passive cooling on your controllers. Some controllers have little fans attached to the heat sinks. I have had a controller fan die. It didn't do any damage though and it could have be dead for several months before I noticed it. One way to check your temps against the intel desktop program is to go into the bios at boot and look there. There should be a page that shows your temperatures. I'm going to disagree with Clint on this, respectfully ;-). Clint and I build computers and my temps and obviously his don't come anywhere close to yours. I have seen so-called silent PC's from some of the big manufacturers that run this hot normally. They make them quiet by not putting many or any fans in them. I don't think any of these temp are going to kill you pc today but I'm a firm believer that high temps shorten the life of electronic components. So check your fans, check for dust, make sure your case is in a place that is well ventilated so the computer isn't just sucking back in it's own hot air. Ben Moore -----Original Message----- According to my Intel Desktop Utilities, the processor and motherboard are at 46 & 48 DG C respectively. The I/O Controller Hub is 81 DG c, and the Memory Controller Hub is at 68 DG C. I wonder if the latter two readings are cause for concern? Remedies? TIA --- Dale E. Heltzer ========================= The list's FAQ's can be seen by sending an email to PCWorks-request@xxxxxxxxxxxxx with FAQ in the subject line. To unsubscribe, subscribe, set Digest or Vacation to on or off, go to //www.freelists.org/list/pcworks . You can also send an email to PCWorks-request@xxxxxxxxxxxxx with Unsubscribe in the subject line. Your member list settings can be found at //www.freelists.org/cgi-bin/lsg2.cgi/l=pcworks . Once logged in, you have access to numerous other email options. The list archives are located at //www.freelists.org/archives/pcworks/ . All email posted to the list will be placed there in the event anyone needs to look for previous posts. -zxdjhu-