G5 Tower Drive Bay Sensor (LONG)

Discussion in 'Buying Tips and Advice' started by Biker21098, Jan 22, 2006.

  1. Biker21098 macrumors member

    Joined:
    Aug 13, 2002
    Location:
    CA
    #1
    Okay so I know when the G5 first came out there was some talk about the HDD being too hot and people relocated the sensor till apple released a software update that lowered the temp threshold. Well, I have a newer dual 2.7. The HDD are way hot. After tons of reading I decided to bite the bullet and just try to relocate mine. Well apple learned we were moving the sensor because they made it SUPER difficult to get. It is barely visible about the slot A HDD on top sticking to the metal shell, right where the fan blows on it.

    My sensor never read more than 86.5 degrees F and the fan RPM never moved above the slow idle of 1000 RPM. Well after about 45min of using a paper clip to separate the sensor from the roof of the case I got the sensor. I pulled it out from above there and the sensor cable gave resistance. To not break the sensor I unlogged it from the cable and then looked at getting the cable to release. There was tons of slack before the cable went up above the HDDs but it seemed to loop and then come back out to plug into the sensor. Upon closer observation the sensor has a 5 wire plug, but the wire before going above the HDD is only 4 wires. So my best guess is the 5th wire is a ground wire for the sensor and that it must have been attached to a nut of screw which was keeping the wire from letting go.

    Now of course I only found this out after yanking on the connector real hard, hard enough to strip it from the wires. So i know have a G5 that doesn't have a hooked up drive bay sensor. What I am asking for is a wiring diagram and or pictures real close up of how the wires hook up to the sensor. Are they in order, do they cross over each other, is the 5th really a separate ground wire. The wire is super small and i don't think i can solder it, but I can figure something out, I already removed the metal clips from the connector, so i can use the plastic connector to insulate the wires from each other. I have no way to know which side is which, as its just a black wire.

    Anyways, I'm kinda bummed, as now without a sensor the fan spins at 1000 RPM, which is what it used to, but if the drives get too hot the fan wont know to spin up, which it never ever did, so I guess I'm just where I was. I'd love to rewire the sensor, or even "hot wire" it so the sensor thinks it is hotter then it is, Any ideas are welcome. please help, the sensor is the same as the older G5's and says Apple Computer Inc 2003 on it. Just need the wiring diagram, and any tips on dealing with the super small wires. Thanks for all the support, and I'd be happy to fix this a software way instead by editing the drive bay sensor fan controller file, I just don't know where that is. Okay, thanks again!!!

    -CJ

    P.S. Please ignore any confusing language, as this was written at 4:30am and I'm kinda bummed out.
     
  2. combatcolin macrumors 68020

    combatcolin

    Joined:
    Oct 24, 2004
    Location:
    Northants, UK
    #2
    um, paragraphs and a bit of spacing?

    Quick 2 minute edit will make it a lot easier to read.

    :)
     
  3. iGary Guest

    iGary

    Joined:
    May 26, 2004
    Location:
    Randy's House
  4. Aarow macrumors 6502a

    Joined:
    Jun 14, 2005
    #5
    To make it a little easier to read you could use Tofu.
     
  5. Sdashiki macrumors 68040

    Sdashiki

    Joined:
    Aug 11, 2005
    Location:
    Behind the lens
    #6
    what a buncha trolls, complain about his spacing and just ignore his post.

    good form.....its what im doing.
     
  6. combatcolin macrumors 68020

    combatcolin

    Joined:
    Oct 24, 2004
    Location:
    Northants, UK
    #8
    :mad:

    try to help the guy out about how to properly post (Of course i know bugger all about this actual problem) and im a troll?
     
  7. FFTT macrumors 68030

    FFTT

    Joined:
    Apr 17, 2004
    Location:
    A Stoned Throw From Ground Zero
    #9
    I would try contacting the folks over at XLR8yourmac.com or Macfixit.com and ask to see if they might have the diagram you're looking for.
    Honestly, the more you do right now, the more you could void your entire factory warranty.
    I would eat a bit of humble pie and take it in to an authorized repair facility.
    If you start messing around with a soldering gun inside your tower, Apple may never touch your machine again.
     
  8. Biker21098 thread starter macrumors member

    Joined:
    Aug 13, 2002
    Location:
    CA
    #10
    Sorry bout. . .

    Hey I'm sorry about the block of text, as I said I was kinda distraught and was just typing as fast I could to get the info out there and try to get help. I will post over at xlr8 they are very helpful as well.

    I would greatly prefer a software tweak to the fan control file or something, its often brought up but no one seems to have touched it yet. Lowering the temp threshold or something. The nice thing so far about warranty is that the sensor was so well hidden above, as long as i tuck that loose wire out of the way, I don't think they would notice unless they took off the very top/roof of the case. But I agree I need to not lose my warranty.

    -CJ

    P.S. First post editing into paragraphs, wow looks so much better. Hey and no hard feelings for not knowing the answer and wanting to raise your post count by making fun of the huge chunk of text, its ok. Hehe, no seriously I do apologize for the first post, I was very happy to see people had read it, so thank you for at lease leaving some note.

    P.P.S. I guess I out smarted my self where to post this, it shows up on the main page under buying tips, but its under the advice section under mac hardware, so if it possible to move it or if it should be moved, please feel free to do so, sorry mods.
     
  9. combatcolin macrumors 68020

    combatcolin

    Joined:
    Oct 24, 2004
    Location:
    Northants, UK
    #12
    Thats ok, we've all had those little moments of mass panic and quick postings.

    I had mine last year when i thought it would be good to re-format my iPod into NTFS.

    Not clever and scared the crap out of me.

    Anyway, regarding your sensor problem, if you fiddle with a PC and break something, a new part is "fairly" affordable.

    Do the same with your Mac and its a nice big bill.

    If your close to an Apple store ask them, you'll be surprised.

    :)
     
  10. homerjward macrumors 68030

    homerjward

    Joined:
    May 11, 2004
    Location:
    fig tree
    #13
    how'd you manage the ipod NTFS bit? i've been looking to do that temporarily...
     
  11. Biker21098 thread starter macrumors member

    Joined:
    Aug 13, 2002
    Location:
    CA
    #14
    the only thing broken is the cable

    The only thing that is broken is the cable, the sensor is fine. The issue is I don't think i know how to remove the old cable or even where it connects to the motherboard. I could get a new cable and splice into the old one, that seems like a great option, however I am still confused about he 5 pin, 4 wire cable issue. The cable has 4 wires, but there are 5 pins in the plus and the sensor, go figure.

    Also turns out I don't have a xlr8 your mac login despite posting on their CPU database and drive database all the time, so I can't post there as they aren't allowing new registration. Thanks for all the kind words.

    -CJ:)
     
  12. letterbox macrumors regular

    Joined:
    Apr 13, 2004
    #15
    Service manuals are only going to available to AASP's. Pics are probably you best option.
     
  13. FFTT macrumors 68030

    FFTT

    Joined:
    Apr 17, 2004
    Location:
    A Stoned Throw From Ground Zero
    #16
  14. combatcolin macrumors 68020

    combatcolin

    Joined:
    Oct 24, 2004
    Location:
    Northants, UK
    #17
    Trust me, DON'T!, really not worth the hassle and my iPod DID NOT like it!

    YOu end up with a 40GB portable hard drive formatted into NTFS which also looks a lot like an iPod.
     

Share This Page