Need help from flashed MP 4,1>5,1 users

Discussion in 'Mac Pro' started by tripmusic, Aug 26, 2016.

  1. tripmusic macrumors 6502

    tripmusic

    Joined:
    Oct 26, 2012
    Location:
    MA
    #1
    I've posted before about having a very slow start up manager (Holding down Option upon boot). After troubleshooting this and still not finding a fix, I've come to the conclusion that it could possibly be because of my MP being flashed from a 4,1 to 5,1. Can anyone else confirm this? It takes a good 20 secs or more to show my list of drives. Thanks
     
  2. h9826790 macrumors 604

    h9826790

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    Apr 3, 2014
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    Hong Kong
    #2
    Most likely because you have lots of drives. Never heard that firmware flash cause slow boot manager.
     
  3. tripmusic thread starter macrumors 6502

    tripmusic

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    Oct 26, 2012
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    MA
    #3
    Nah... I moved the same drives over from a 3,1 and didn't have an issue. Plus, I took all the HDD's out and booted with just the SSD and didn't fix. I also disconnected the SSD and tried to boot with only the HDD bays and same result. If it's not the firmware, what the hell else could it be?
     
  4. h9826790 macrumors 604

    h9826790

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    #4
    It's really hard to tell. You are now comparing a 3,1 to a 5,1. Which is not just a firmware upgrade.

    If you want to narrow down to that's a firmware issue. You have to:

    1) Remove the W3690, because that only works with the 5,1 firmware.
    2) install the original CPU back in.
    3) Time the HDD show up time.
    4) downgrade the firmware back to 4,1
    5) Time the HDD show up time again.

    And if the manager really show up much quicker. Then

    a) Re-flash it to 5,1
    b) time the HDD show up time once more, to make sure it's not because the unintentional reset during shaping CPU / firmware flashing, etc (e.g. SMC reset).

    You are now just keep blaming the 5,1 firmware without any proper control test. How can we make that conclusion?

    However, from your above test. We can confirm that my 1st assumption is wrong, it's not due to the number of HDDs, but something else.
     
  5. tripmusic thread starter macrumors 6502

    tripmusic

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    Oct 26, 2012
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    MA
    #5
    I'm just saying that it's not a drives issue because the same drives were in a 3,1 (& 2,1) and the boot selector was instantaneous. Seems odd that a newer and better machine would be slower in that respect. Yea, I'm not that inclined to throw the quad chip back in and revert the firmware at this time. It's more an inconvenience to have to wait a bit longer to boot into my DAW drives. It's just one of those things that bugs me. Thanks for your thoughts

    EDIT: Actually I can't downgrade the firmware anyhow because I have one of those Apple refurbished 4,1.
     
  6. LightBulbFun macrumors 6502a

    LightBulbFun

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    Nov 17, 2013
    Location:
    London UK
    #6
    You can downgrade the firmware back to a 4,1 you just wont have the B08 boot rom but the B07 boot rom thats all. it will still work. in regards to the slow boot manager make sure to reset the PRAM and have try again with NOTHING but a keyboard and monitor connected as something could be holding it from one of your USB Devices to your DVD drive. (a boot manager with no bootable drives will just be a mouse curser btw) as far as I know flashing a 4,1 to a 5,1 does not cause a slow boot manager.
     
  7. tripmusic thread starter macrumors 6502

    tripmusic

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    Oct 26, 2012
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    MA
    #7
    Thanks for the clarification. Are there any differences in the boot rom?

    Yea I've tried many PRAM resets and have disconnected peripherals and PCI cards

    Is it possible to boot in verbose mode, whilst bringing up the start up manager, so I could see what's making it hang?
     
  8. orph macrumors 6502a

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    UK
    #8
    might be a bad ram stick? have you tried removing all but 2 ram sticks then booting?
     
  9. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #9
    I haven't seen any difference in a handful of Mac Pros that I flashed.
     
  10. tripmusic thread starter macrumors 6502

    tripmusic

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    #10
    Haven't tried that. It's pretty new DMS ram. I'll check later. Thanks
     
  11. DPUser macrumors 6502a

    Joined:
    Jan 17, 2012
    #11
    I have had lengthy post delays that occasionally arise when many USB peripherals, including some Yamaha keyboards (which have their own AC power), are attached but his was fixed by a complete power-down reboot. I note you tried without peripherals; I mention this for others who may encounter post delays.

    I don't know that comparing a 3,1 to a 4,1/5,1 provides any useful data. Good luck sorting it out but, in the end, if this is a consistent issue and post is always reached in 20 seconds, it ain't that big a deal.
     
  12. thornslack macrumors regular

    Joined:
    Nov 16, 2013
    #12
    If you are using a non native apple Gpu that can cause longer than normal boots.

    In my experience the more drives and peripherals attached to the computer the longer the post, especially if there are multiple drives with their own OS.
    --- Post Merged, Aug 27, 2016 ---
    Just re read your post. Perhaps moving a drive from a 3,1 has something to do with it? Have you considered a fresh OS X install natively on the 4,1 to rule out baggage from the older machine?
     
  13. kohlson macrumors 6502a

    Joined:
    Apr 23, 2010
    #13
    The boot operation is really trying to "get everything ready." More RAM will increase boot time.At one point a balky network issue slowed me down. Disk drives that are wonky (both media and volume structures). You may want to check these, too.
     
  14. tripmusic thread starter macrumors 6502

    tripmusic

    Joined:
    Oct 26, 2012
    Location:
    MA
    #14
    I'm just saying I've used the exact same drives/peripheral setup on two previous models and didn't experience this lag for the startup manager.

    It is a flashed Gpu, but I've used this on two previous MP's without an issue. I removed all drives except for 1 boot drive and removed all peripherals and it doesn't make a difference. I've cloned Mac Pro boot volumes to my MBP and didn't experience any "baggage" issues.

    My boot time is lightning fast... it's just the startup manager that lags. All my drives and volumes check out, as well as SMART parameters.
    --- Post Merged, Aug 27, 2016 ---
    Tried booting with one and two... no change.
    --- Post Merged, Aug 27, 2016 ---
    Thanks to everyone who's chimed in. In the end, it's not a huge deal having to wait 20+ secs to bring up my drives, it's just I haven't experienced this before.

    Just to note... when I did flash it to 5,1 it didn't initially take it. Can't remember all the details. The second attempt to flash it worked. Perhaps this did something? Maybe someday when I feel bored I'll throw the Quad cpu back in, downgrade to 4,1 and then redo everything again. Until then, I guess it will just remain an annoying mystery. Thanks again folks!
     

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