Dell 5559 and UEFI boot issues. Help, please.

Discussion in 'BIOS Mods' started by donalgodon, Oct 21, 2016.

  1. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    I just bought an Inspiron 5559 and swapped an SSD for the HD and reinstalled 10 via a USB that I created with RUFUS.

    I realized that it will only boot with UEFI disabled and Legacy enabled. I'd like to use UEFI, if possible, but I can't figure out what I did wrong. The defaults in the UEFI/BIOS screen disable legacy, but then the SSD won't boot.

    I used the defaults for RUFUS.

    Any help would be greatly appreciated.
     
  2. glennsamuel32

    glennsamuel32 MDL Senior Member

    Jul 15, 2012
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    It would help if you stated the error you get when booting SSD...

    And if you'd like to use UEFI, GPT for UEFI should be chosen in Rufus...
     
  3. Oz

    Oz MDL Expert

    Sep 1, 2009
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    With some Dell BIOS' when you change hard drives, easiest way to get BIOS to see new drive is to reset BIOS to default. Then it will auto discover new drive and set itself up properly.

    Then boot using UEFi option while hitting F12
     
  4. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    I'll try those tips. Should I use NTFS with the GPT for UEFI in RUFUS?

    I think that might have been the issue I used the MBR partition scheme.
     
  5. glennsamuel32

    glennsamuel32 MDL Senior Member

    Jul 15, 2012
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  6. mehargags

    mehargags MDL Junior Member

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    NTFS only supports UEFI-CSM.
    I suggest you install using GPT to have a full UEFI boot
     
  7. Mr.X

    Mr.X MDL Guru

    Jul 14, 2013
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  8. T-S

    T-S MDL Guru

    Dec 14, 2012
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    With UEFI you may gain few seconds in boot time, but everything else becomes more complicate, IMO is not worth to use the GPT partitionig scheme unless you're forced to for whatever reason
     
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  9. SpeedDream

    SpeedDream MDL Addicted

    Feb 20, 2012
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    I use UEFI then I choose MBR for UEFI which changes rufus to formatting pen drive as fat32 and it all goes fine, make sure you choose uefi during boot
     
  10. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    For EUFI & Legacy BIOS bootable usb just format the USB FAT32 and extract the iso to it, done...

    UEFI is only handy when you want to partition the disk with 4+ primary partitions or you need to boot from a 2TB+ systemdrive.
     
  11. Simple07

    Simple07 MDL Senior Member

    Nov 15, 2012
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    I bought one of these 5559 last week (I7, 16 GB RAM, AMD R5 4GB Video, HD non reflective screen and 2 TB hard disk). It is rather a nice machine once you install its drivers (Especially the Sound drivers). But it gave me hell trying to install a genuine Windows 7 from a USB. I had to obtain a 7 GB re-cooked Windows 7 installation media that had all updates slip-streamed.

    I did not have any problem with Windows 10 RS1 (14393), but RS2 14946 succeeded once and failed ever since, also 14951 failed the Installation. I updated to the latest BIOS (v1.2.4), but to no avail.

    Except for the audible fan in quite surroundings and the rather under powered Video chip, it is a nice machine running happily with RS1 (14393). Alas, I could not install the newer RS2 even on VirtualBox or VMware Workstation, I get the "Just a moment" for ever.
     
  12. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    The advice you all have provided was useful and I got it working in UEFI mode. Thanks again.

    I like the faster boot time, so for me, i can't see any downside.
     
  13. glennsamuel32

    glennsamuel32 MDL Senior Member

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    #13 glennsamuel32, Oct 21, 2016
    Last edited: Oct 21, 2016
    The biggest downside with UEFI is it would block most custom boot-disks from loading, as it only allows MS approved code...
     
  14. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    You mean that it only allows MS approved apps to run?
     
  15. Enthousiast

    Enthousiast MDL Tester

    Oct 30, 2009
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    He talks about booting some other os or service disks.
     
  16. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    Mine has NO fan noise at all. That's strange.
     
  17. T-S

    T-S MDL Guru

    Dec 14, 2012
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    That's the sceure boot not uefi.
     
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  18. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    Samsung Magician v4.9.7 reports 'AHCI mode disabled/deactivated' and 'unable to detect SATA' (I used a Samsung 850 SSD).

    In my Dell 5559 UEFI BIOS I having 'secure boot' enabled causes the false-report. I confirmed this with Samsung. It's just a software glitch.

    When secure boot in BIOS is disabled, AHCI mode and SATA detect reports working normally again.

    Overall, this Dell model (which I purchased as a refurb) has been great. Runs cool and quiet and fast.
     
  19. brownimfc

    brownimfc MDL Senior Member

    Jan 25, 2015
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    I had the secure boot problem but Samsung Magician is now running fine with IP build 14951.
     
  20. donalgodon

    donalgodon MDL Member

    Jul 21, 2010
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    Is that with secure boot on? 14951 is Insider, right?