Re: Thermal Compound Question
On 2010/11/04 10:59, Albert Carter so eloquently wrote: Remove the heat sink remove what you can with a lint free paper towel and then clean the rest off using a 85% or better isopropyl alcohol. Seconded. Use isopropyl alcohol, not rubbing alcohol. It's still dirt cheap. Tina -- iMac 20" USB 2 1.25GHz G4 2GB RAM GeForce FX 5200 Ultra 64MB DDR Gnome/Ubuntu 10.10 Power Mac June 04 2GHz G5DP 8GB RAM GeForce 6800 Ultra DDL 256MB Leopard 10.5.8 PowerBook G4 15" HiRes DLSD 1.67GHz G4 2GB RAM Radeon 9700 128MB DDR Leopard 10.5.8 -- 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: Mismatched SCSI connectors... (G4 Sawtooth)
On Nov 4, 2010, at 11:05 AM, Bruce Johnson wrote: No, a lot of SCSI scanners conformed to the Mac DB25 standard. My Umax had a DB25 SCSI port on it. ALL of mine, too ... at least those which were originally intended for so-called "non-professional" applications. For those which were originally intended for so-called "professional" applications, ALL have had HD50 (SCSI-2 single-wide) connectors. -- 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: Thermal Compound Question
On Nov 4, 2010, at 9:59 AM, Albert Carter wrote: I wouldn't necessary recommend using Pin-Sol or Water to clean a processor. That's YOU and I'm ME. Pine-Sol is water soluble, and hot water, as in a rinse, is exceptionally easy to remove. Best method I've found is to run the machine long enough to heat up. Remove the heat sink remove what you can with a lint free paper towel and then clean the rest off using a 85% or better isopropyl alcohol. NO volatile chemical, such as isopropyl alcohol, or ANY alcohol, for that matter, can be truly easier to dispose of as is pure water. For ME, the "gold standard", for purposes of processor and heat sink cleaning and for preparation for newly applied heat sink compound is: 1) Pine-Sol, to completely dissolve the "grease" which is THE major component in any such heat sink compounds, followed IMMEDIATELY by 2) hot water, to completely dissolve the Pine-Sol, follower IMMEDIATELY by 3) compressed air or gas (I usually use carbon dioxide from a 35 pound cylinder of the same), to blow-away any remaining water. With the Pine-Sol method, you would apply it using a Q-Tip, and using the minimum Pine-Sol which proved to be necessary to completely dissolve the "grease". You would also apply the minimum water which proved to be necessary to completely dissolve the (water-soluble) Pine-Sol. Finally, you would also apply the minimum CO2 which proved to be necessary to completely remove the water. -- 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: Mismatched SCSI connectors... (G4 Sawtooth)
On Nov 3, 2010, at 7:42 PM, Doug McNutt wrote: There is something that doesn't make a lot of sense here. I don't think there ever was a peecee that used a DB25 connector for SCSI. Only Apple ever did that and they shorted a bunch of grounds together while violating SCSI rules of engagement. Was that scanner really a peecee parallel-port device? No, a lot of SCSI scanners conformed to the Mac DB25 standard. My Umax had a DB25 SCSI port on it. -- Bruce Johnson University of Arizona College of Pharmacy Information Technology Group Institutions do not have opinions, merely customs -- 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: Thermal Compound Question
I wouldn't necessary recommend using Pin-Sol or Water to clean a processor. Best method I've found is to run the machine long enough to heat up. Remove the heat sink remove what you can with a lint free paper towel and then clean the rest off using a 85% or better isopropyl alcohol. From: Peter Haas To: g3-5-list@googlegroups.com Sent: Thu, November 4, 2010 12:28:44 PM Subject: Re: Thermal Compound Question On Nov 4, 2010, at 8:13 AM, Geke wrote: > To improve conductance, you can use the type of paste containing metal > (like Arctic silver), but then you have to be more careful than with > the white "ceramic" type of paste, because metal also conducts > electricity. The white pastes are a nuisance to clean-up after. However, these clean-up quite easily by using full-strength Pine-Sol, followed by a hot water rinse. Arctic silver is indeed conductive, which is why the applications procedure is so involved. White and diamond pastes are non-conductive, and the procedures are somewhat simpler. -- 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: Thermal Compound Question
On Nov 4, 2010, at 8:13 AM, Geke wrote: To improve conductance, you can use the type of paste containing metal (like Arctic silver), but then you have to be more careful than with the white "ceramic" type of paste, because metal also conducts electricity. The white pastes are a nuisance to clean-up after. However, these clean-up quite easily by using full-strength Pine-Sol, followed by a hot water rinse. Arctic silver is indeed conductive, which is why the applications procedure is so involved. White and diamond pastes are non-conductive, and the procedures are somewhat simpler. -- 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: Thermal Compound Question
> thin layer, to fill in any voids on the surface of the chip and heatsink. >From what I’ve read, that’s the idea. Thermal paste is not a great heat conductor, but it’s much better than air. To improve conductance, you can use the type of paste containing metal (like Arctic silver), but then you have to be more careful than with the white "ceramic" type of paste, because metal also conducts electricity. -- 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: Thermal Compound Question
On Nov 4, 12:16 am, "Tina K." wrote: > > That might not be the case, I do remember some Apple model being > manufactured with too much thermal paste by mistake, but I don't > remember which model it was. that was clearly a manufacturing mistake. i had a PB G4 1.67 hi-res model, and the processor burned out. when i disassembled it, i discovered that there were gobs and gobs of the thermal paste. WAY too much, and that undoubtedly contributed to the failure. i scraped chunks off the heatsink and when i replaced the mobo i used the proper amount, and it is still going strong. rule of thumb, however little you apply, it is too much. there isn't ANYTHING that is better than direct contact. the thermal paste is only to fill the microscopic voids between the two surfaces in direct contact. cover the entire surface with paste (don't get any over the edges), then scrape off as much as you can, press together firmly and then pull it apart, it should appear that there are large areas with no paste at all. this is the correct amount. i don't recall the brand name, but when i used to build high power solid-state amplifiers where the massive output transistors generated much more heat than a CPU, we used a white silicone grease. as another reader suggested, i would avoid any paste containing metallic powder, or powdered diamonds, either. the mere presence of solid particles in the paste means that it will likely be applied thicker than it should be. -- 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: Thermal Compound Question
http://benchmarkreviews.com/index.php?option=com_content&task=view&id=150&Itemid=62&limit=1&limitstart=0 On Thu, Nov 4, 2010 at 8:30 AM, george monroe wrote: > http://skinneelabs.com/tim-v2.html > > > On Thu, Nov 4, 2010 at 7:59 AM, george monroe wrote: > >> from what i have read, it seems most compounds are close to each other in >> abilities. the thing i noticed was the different schools of thought on the >> amount to use. i personally am sticking with the thought that the paste is >> to fill in any voids on the surface of the chip and heatsink, i dont put a >> thick layer on. i am also pretty confident that as long as we only use a >> small amount, the idea of seepage, is that a word, will not be a problem and >> if a minute amount seeps off the surface of the chip it will not cause >> damage. i also avoid any metalic containing paste just to be sure. >> >> >> On Thu, Nov 4, 2010 at 12:16 AM, Tina K. wrote: >> >>> On 2010/11/03 12:39, John Carmonne so eloquently wrote: >>> I have noticed that Apple used a thick paste on the G4 PowerBooks, I assume this is because the possible flexing and ambient temperature changes of the components could break the thermal contact >>> >>> That might not be the case, I do remember some Apple model being >>> manufactured with too much thermal paste by mistake, but I don't remember >>> which model it was. >>> >>> >>> Tina >>> >>> -- >>> >>> iMac 20" USB 2 1.25GHz G4 2GB RAM GeForce FX 5200 Ultra 64MB DDR >>> Gnome/Ubuntu 10.10 >>> >>> Power Mac June 04 2GHz G5DP 8GB RAM GeForce 6800 Ultra DDL 256MB Leopard >>> 10.5.8 >>> >>> PowerBook G4 15" HiRes DLSD 1.67GHz G4 2GB RAM Radeon 9700 128MB DDR >>> Leopard 10.5.8 >>> >>> -- >>> 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 >>> >> >> > -- 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: Anti-virus for Mac
On 11/3/10 11:36 PM, Bruce Johnson wrote: On Nov 3, 2010, at 7:10 PM, Yersinia wrote: OK, thanks for the heads-up about a first time virus scan being like Spotlight/taking forever. Maybe I will try Sophos after all. But... what IS "Access scanning" and what do you mean by "files are only ever scanned if the system touches thsm"? By "the system" do you mean OS X? on access scanning means that when files are read (for the first time in a session) or written they're scanned. It's sort of like spotlight which only indexes when files are changed. Both programs insert themselves into the OS so that when files are read or written; they scan the file before the OS can do anything. Oh wow, OK! But that sounds a lot like lysogeny to me! LOL! ( is there a microbiologist in the house? ;-) ) If this sounds a lot like what malware would do, you're right. Some years back a Sophos update decided that a bunch of Microsoft application support files were viruses. A LOT of folks suddenly ended up with fubared Office installs, and a lot of IT folks cursed Sophos that day. ROFLMAO! ...uh-HUH, definitely seeing this lysogenic virus incorporating its genome into the genome of the host cell so that ITS proteins will code instead of those of the host cell's ...and yeah, I know I shouldn't be laughing on account of all the trouble and aggravation those poor IT folks had to deal with on account of it, but just the IDEA that any version of a Mac AV application would have decided that ANYTHING MicroBorg on the systems were viruses just tickles my funnybone! . . . Anyway, I ran Sophos on my Quicksilver last night and no threats were found -- at least not on the big 60 GB HDD. There's also a 30 GB HDD in this machine, and I was just trying to figure out how to tell if THAT drive was checked too (the "help" isn't really all that great, but Google is my friend and they do have a forum I noticed). Once I'm sure of that, think I'll also run it on the Mini and iBook since they aren't Internet virgins either -- the iBook in particular but on rare occasions, I actually have taken the Mini online. Thanks for the help, and the laugh. ~Yersinia. -- 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: Thermal Compound Question
http://skinneelabs.com/tim-v2.html On Thu, Nov 4, 2010 at 7:59 AM, george monroe wrote: > from what i have read, it seems most compounds are close to each other in > abilities. the thing i noticed was the different schools of thought on the > amount to use. i personally am sticking with the thought that the paste is > to fill in any voids on the surface of the chip and heatsink, i dont put a > thick layer on. i am also pretty confident that as long as we only use a > small amount, the idea of seepage, is that a word, will not be a problem and > if a minute amount seeps off the surface of the chip it will not cause > damage. i also avoid any metalic containing paste just to be sure. > > > On Thu, Nov 4, 2010 at 12:16 AM, Tina K. wrote: > >> On 2010/11/03 12:39, John Carmonne so eloquently wrote: >> >>> >>> I have noticed that Apple used a thick paste on the G4 PowerBooks, I >>> assume this is because the possible flexing and ambient temperature >>> changes of the components could break the thermal contact >>> >> >> That might not be the case, I do remember some Apple model being >> manufactured with too much thermal paste by mistake, but I don't remember >> which model it was. >> >> >> Tina >> >> -- >> >> iMac 20" USB 2 1.25GHz G4 2GB RAM GeForce FX 5200 Ultra 64MB DDR >> Gnome/Ubuntu 10.10 >> >> Power Mac June 04 2GHz G5DP 8GB RAM GeForce 6800 Ultra DDL 256MB Leopard >> 10.5.8 >> >> PowerBook G4 15" HiRes DLSD 1.67GHz G4 2GB RAM Radeon 9700 128MB DDR >> Leopard 10.5.8 >> >> -- >> 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 >> > > -- 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: Thermal Compound Question
from what i have read, it seems most compounds are close to each other in abilities. the thing i noticed was the different schools of thought on the amount to use. i personally am sticking with the thought that the paste is to fill in any voids on the surface of the chip and heatsink, i dont put a thick layer on. i am also pretty confident that as long as we only use a small amount, the idea of seepage, is that a word, will not be a problem and if a minute amount seeps off the surface of the chip it will not cause damage. i also avoid any metalic containing paste just to be sure. On Thu, Nov 4, 2010 at 12:16 AM, Tina K. wrote: > On 2010/11/03 12:39, John Carmonne so eloquently wrote: > >> >> I have noticed that Apple used a thick paste on the G4 PowerBooks, I >> assume this is because the possible flexing and ambient temperature >> changes of the components could break the thermal contact >> > > That might not be the case, I do remember some Apple model being > manufactured with too much thermal paste by mistake, but I don't remember > which model it was. > > > Tina > > -- > > iMac 20" USB 2 1.25GHz G4 2GB RAM GeForce FX 5200 Ultra 64MB DDR > Gnome/Ubuntu 10.10 > > Power Mac June 04 2GHz G5DP 8GB RAM GeForce 6800 Ultra DDL 256MB Leopard > 10.5.8 > > PowerBook G4 15" HiRes DLSD 1.67GHz G4 2GB RAM Radeon 9700 128MB DDR > Leopard 10.5.8 > > -- > 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 > -- 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
