Re: Topic: Removing Heat Sink from Sonnet G4 upgrade card
I’ve been looking around a bit, and my conclusion sofar is: 71 C/160 F is hot, but not too hot for most processors. A little more detail: the max. temperature depends on the model; some go over 80, others only up to 65. Many have a safety switch that kicks in at a certain temperature to avoid damage. CPUs don’t break suddenly at high temperatures, but they age much faster. So in practice it can certainly happen that a CPU (finally) gives up at a time of high load. -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Topic: Removing Heat Sink from Sonnet G4 upgrade card
the last machine of mine in which i bothered to check CPU temps was a UMAX S900 with a met@box G4/400 upgrade. compared to today's machines the heatsink was small with a small fan attached. it consistently ran at 87˚-91˚C, so i'd say that 70˚C is running VERY cool. i have a QS dual 1gig, and that heatsink is very hot to the touch, my guess is well above 70˚C. On Jul 31, 8:34 am, Gary Sucher gsuc...@gmail.com wrote: Hi, Sorry. I do have Temperature Monitor installed and when the Sonnet card was in it read apx 160 F. Gary Sent from my iPhone. On Jul 31, 2011, at 7:08 AM, g3-5-list+nore...@googlegroups.com wrote: gifutiger Jul 30 09:36AM -0700 ^ Greetings, I couldn't find anywhere in your posting which stated that you have Temperature Monitor installed in your platform. Without some kind of a Temperature monitor installed all that you are going by is the sound of the FANs. The MDD will turn it's fans on full if the Temperature monitors on the motherboard doesn't see the Temperature of the CPU and it could be that your Sonnet G4 Upgrade card isn't providing the proper input to the Temperature monitoring circuit. If you install the Temperature Monitorhttp://www.bresink.de/osx/TemperatureMonitor.html When you start up your platform the CPU temp. should be about room ambient temp. I have a MDD 1.25Ghz and Temperature Monitor reports my CPU B: 136.4F and the Disk drive (SMART: 88F) and my fans run at low speed. Cheers Harry San Jose, CA -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Topic: Removing Heat Sink from Sonnet G4 upgrade card
That's 71 degrees Centigrade, if I'm right. That doesn't sound like too much to me. Anyone can say something about what is a safe max temperature of CPUs? Does it vary a lot among different models? -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Re: Topic: Removing Heat Sink from Sonnet G4 upgrade card
At 06:37 -0700 8/1/11, Geke wrote: That's 71 degrees Centigrade, if I'm right. That doesn't sound like too much to me. Anyone can say something about what is a safe max temperature of CPUs? Does it vary a lot among different models? The absolute maximum temperature for a PN junction is about 205 C. At that point basic diffusion of the P type and N type doping atoms becomes serious. 205 C is also the soldering temperature for the lead free solders we now have to use. That makes for interesting problems melting the solder fast enough that you don't damage the insides of a chip. Safe maximum depends on your safety standards but it's well below 205. 100 C is likely OK for everyone. -- -- A fair tax is one that you pay but I don't -- -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
Topic: Removing Heat Sink from Sonnet G4 upgrade card
Hi, Sorry. I do have Temperature Monitor installed and when the Sonnet card was in it read apx 160 F. Gary Sent from my iPhone. On Jul 31, 2011, at 7:08 AM, g3-5-list+nore...@googlegroups.com wrote: gifutiger Jul 30 09:36AM -0700 ^ Greetings, I couldn't find anywhere in your posting which stated that you have Temperature Monitor installed in your platform. Without some kind of a Temperature monitor installed all that you are going by is the sound of the FANs. The MDD will turn it's fans on full if the Temperature monitors on the motherboard doesn't see the Temperature of the CPU and it could be that your Sonnet G4 Upgrade card isn't providing the proper input to the Temperature monitoring circuit. If you install the Temperature Monitor http://www.bresink.de/osx/TemperatureMonitor.html When you start up your platform the CPU temp. should be about room ambient temp. I have a MDD 1.25Ghz and Temperature Monitor reports my CPU B: 136.4F and the Disk drive (SMART: 88F) and my fans run at low speed. Cheers Harry San Jose, CA -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to g3-5-list@googlegroups.com For more options, visit this group at http://groups.google.com/group/g3-5-list
