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Thread: Giga dual 1.8 in a 867 Quicksilver --- Normal Temps?

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  1. #1
    Join Date
    Feb 2006
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    35

    Default Giga dual 1.8 in a 867 Quicksilver --- Normal Temps?

    Hello.

    It seems that the Giga deal 1.8 Upgrade I got here has no temp reporting...


    ..I was wondering if anyone had ballpark figures for how hot this computer (867 Quicksilver) should run with the giga 1.8 upgrade as per what temperature monitor reports on the hard drive.


    Mine would run at 125+ F with the upgrade at full 1.8 and crashed handily, most crashes are eliminated with a downclocking to 1.6 however, every now and then wered crashes happen. They are rare, but they still happen. at 1.6Ghz the Hard drive reports about an even 50 C at "idle" and higher under load. The fan still sounds like its running at full steam until I open the case and it slows down a bit.



    Also, do you guys normally report your temps in degrees C or degrees F? Which is more common?



    I get the idea that now I must be tearing holes into my computer for it to breathe properly. Are there any simple writeups here or elsewhere about basic, straightforeward case mods you can do to cool a Quicksilver powermac that has been upgraded?

    Also, all of my vent holes are dust free!

    Thanks


    __Ben

  2. #2
    Join Date
    May 2001
    Location
    1hr N/W of LA LA Land
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    3,320

    Default

    Panther doesn't support reading temps off the chip die like 9 so no temp monitoring is normal for these upgrades. I check temps by popping the case open, and feeling things. Others have used temp probes.

    One of the best things you can do for a QS is reverse the CPU fan so it's exhausting hot air from the case instead of taking hot air from the PSU exhaust, and recirculating it back in.

    If you're not into hacking your case you could also add a PCI slot cooler. Right beneath the video card would be a good spot to expell some hot air.

    If you're not afraid of cutting/drilling holes have a look at my case mod thread. There are other ideas floating around too, but I go for quiet as well as cool.

    50C hard drive temp is pretty damn hot. Need to do something about that pronto.

  3. #3
    Join Date
    Jul 2001
    Location
    Florida
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    I am no expert here, but have found HD and CPU temperature monitors to be a bit unreliabe.
    (if somebody has a verified thermometer please let me know)
    That said, I generally trust the touch method.
    If the drive or processor seem HOT to your fingers you may have a problem to address.
    Not a High-Tech solution, but has allways worked for me.

    Dave
    The more you know, the more you know you don't know.

  4. #4
    Join Date
    Feb 2006
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    Default

    Thanks.

    Yeah Ill figure something out soon so I can try out the full 1.8Ghz again.


    This is interesting... Sooo.. theres no temp reporting for my 867 Quicksilver, (Giga dual 1.8 upgrade), Yet, yet.... yet the original cooling fan system seems to know when things are getting too hot as it spools up greatly shortly after turning on. If i open the case, the fans go markedly slower in just a couple minutes. It knows how hot it is, it just isnt telling me !



    ___g42hot

  5. #5
    Join Date
    Aug 2003
    Location
    Under the Midnight Sun
    Posts
    656

    Default Fans in QS etc.

    The fans have thermistors which activate on heat (little blue chip on most G4 fans)...

    There is no CPU temperature diode on most G4's, I tend to use a Fluke Voltmeter with a temp probe attached.

    If you are seeing 50C on the HD, your case is too warm.
    MacBook Pro Uni 2.4GHz with express card slot

    iMac G5

  6. #6
    Join Date
    Feb 2006
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    my case was just a couple hours ago 50C at "idle" (low processor usage), as detected on temperature monitor at the original Quicksilver's hard disk temp.

    Now its about maybe 41-42C at idle

    I tried this just now since i posted last, whilst the computer was on.

    Doh.. Sorry I was trying to post a picture.

    Basically, I noticed that the Giga fans expelled hot air also on the side of the heat sink facing the input fan. Well, it seemed that that hot air was being picked back up by the outlet blast of the main inlet fan and recirculated back into the two Giga fans.

    I put a small strip on cardboard between the top of the giga heat sink and the bottom of the inlet fan, slightly at an angle, to prevent hot heat sink air recirculaton back into the giga fans. Now, the hot air on the original inlet fan side of the giga heat sink must travel below the cardboard strip and out into the box, and only cool inlet air is going into the Giga fans.

    It is now running at 42C as opposed to 50C.

    Sorry I dont have a place to upload my pic, as to link you to it.



    --->>>But, Im curious. Has anyone installed a Giga Dual 1.8 in a quicksilver and had it work perfectly without any cooling system upgrades or mods.. (Ges, this is a computer, not an automobile!) ??

    __g42hot

  7. #7
    Join Date
    Feb 2006
    Posts
    35

    Default

    Ah, it just went up to 43C for a moment, then back down to 42.. I must have been typing my last post too quickly But seriously, this seems to work a bit. Also, its over 75 F in this room now which normally its not over 72.. So its hot in here to begin with.

    __g42hot

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