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  1.    20 Mar 2017 #11
    Join Date : Jul 2015
    Posts : 9,409
    Windows 10 Pro

    Quote Originally Posted by djbaxter View Post
    What are the chances I'll make my computer unbootable with a BIOS upgrade?
    I've upgraded dozens of computers and have not had any fail.
      My ComputerSystem Spec
  2.    20 Mar 2017 #12
    Join Date : May 2015
    Posts : 1,645
    Win 10 X64 Pro 15063

    Quote Originally Posted by djbaxter View Post
    What are the chances I'll make my computer unbootable with a BIOS upgrade?
    I had a couple of motherboards bricked with a BIOS update back in 2011. They were somewhat early UEFI boards. The BIOS update appeared to go normally, but they never booted again. One of them was nominally a dual BIOS board, but it lacked a manual switch to use the backup BIOS, and the automatic switch did not work.

    Other than that, I have not had any BIOS updates fail. Some of my newer board have had real dual BIOSes (with a switch), a BIOS recovery mode, or both. I haven't needed those features.
      My ComputerSystem Spec
  3.    21 Mar 2017 #13
    Join Date : Oct 2016
    Caledon, Ontario, Canada
    Posts : 4,077
    Windows 10 Pro Build 1703

    I would reset BIOS and confirm memory voltage. Test.

    The BIOS they issued from day one likely supports 16GB.

    Then if that doesn't work go all in.
      My ComputerSystem Spec
  4.    21 Mar 2017 #14
    Join Date : Aug 2015
    Posts : 40
    Windows 10
    Thread Starter

    Okay. No luck so far:

    Confirmed memory voltage for the new ram is 1.50 V.

    Updated the BIOS.

    Cleared CMOS using "Load Defaults" from Setup.

    Reinstalled the new RAM - would not boot.

    Reinstalled old ram. Back into Setup to disable Fast Boot to look for error messages.

    Reinstalled new RAM.

    Got this:

    AMIBIOS (c) 2010
    BIOS version: P01-A3
    Release Date: 05/17/2010
    This BIOS is exclusively for Gateway only
    CPU: Intel (R) Core (TM) i3 CPU 540@3.07GHz

    The IMC is operating with DDR3 1333 MHz
    Dual Channel Mode --->> DOES THIS MATTER? Original has "chips/blocks" on both sides; new one side only)
    Initializing USB Controllers .. Done.
    3068 MB OK (with original RAM says 8192 MB) <<---- NOTE
    (c) American Megatrends, Inc.
    64-0100-001031-00101111-05170-LfdHvdImc-R6820012-Y2KC

    I hear two beeps after that.

    Then it stops. Nothing else happens.
      My ComputerSystem Spec
  5.    21 Mar 2017 #15
    Join Date : Apr 2015
    Posts : 12,840
    W10Prox64

    Beep codes - AMI BIOS
    The complete BIOS beep guide - TechSpot Forums
    2 short Memory parity error- A memory parity error has occurred in the first 64K of RAM. The RAM IC is probably bad

    AMIBIOS Beep Codes (What to Do When Your PC Beeps)
    Two beeps means there has been a parity error in base memory. This is an issue with the first 64KB block of memory in your RAM. The solution is usually to replace the memory.

    Parity errors:
    How to Fix a Memory Parity Error | Techwalla.com

    Think your new RAM is bad?

    EDIT: I do not think dual vs. single channel should prevent the computer from booting, just possibly slow down performance of the OS, but I could be wrong, I'm no RAM expert.
      My ComputerSystem Spec
  6.    21 Mar 2017 #16
    Join Date : Aug 2015
    Posts : 40
    Windows 10
    Thread Starter

    Quote Originally Posted by simrick View Post
    Beep codes - AMI BIOS
    The complete BIOS beep guide - TechSpot Forums
    2 short Memory parity error- A memory parity error has occurred in the first 64K of RAM. The RAM IC is probably bad

    AMIBIOS Beep Codes (What to Do When Your PC Beeps)
    Two beeps means there has been a parity error in base memory. This is an issue with the first 64KB block of memory in your RAM. The solution is usually to replace the memory.

    Parity errors:
    How to Fix a Memory Parity Error | Techwalla.com

    Think your new RAM is bad?

    EDIT: I do not think dual vs. single channel should prevent the computer from booting, just possibly slow down performance of the OS, but I could be wrong, I'm no RAM expert.
    This is the second batch of four RAM sticks I'm trying. First four from Patriot, now four from Kingston. I doesn't seem very probable that I'd have two batches of bad RAM in a row.
      My ComputerSystem Spec
  7.    21 Mar 2017 #17
    Join Date : Oct 2016
    Caledon, Ontario, Canada
    Posts : 4,077
    Windows 10 Pro Build 1703

    Interesting articles. First on memory and whether modules are single rank or dual ranked.

    Single Rank Memory vs. Dual Rank Memory - OEMPCWorld

    Next from Tom's hardware why some boards can't handle the larger single ranked sticks.

    Ram not working fully - [Solved] - Memory - Tom's Hardware

    You have to scroll down to Best answer.

    So you need to look at entire memory number to see if you've gone from 2r to 1R's.

    Ken
    Last edited by Caledon Ken; 21 Mar 2017 at 16:36.
      My ComputerSystem Spec
  8.    21 Mar 2017 #18
    Join Date : Apr 2015
    Posts : 12,840
    W10Prox64

    Very interesting answer (2nd one).

    I wonder if the OP could try running the system scan at Crucial.com to find truly compatible memory? Seems like that is the issue, if this is the second set he is having problems with.
      My ComputerSystem Spec
  9.    21 Mar 2017 #19
    Join Date : Aug 2015
    Posts : 40
    Windows 10
    Thread Starter

    I don't see any information at all about 1R or 2R on the new sticks.

    It just says:

    Kingston
    KVR13N9S8H/4
    CPMK0831764 1.5V

    The other sticker says:

    99U5402 - 034.A00G
    000007620 - P00311
    HNJWY - A99PWF - YVJJA
    1703 ASSY IN TAIWAN (2)
      My ComputerSystem Spec
  10.    21 Mar 2017 #20
    Join Date : Aug 2015
    Posts : 40
    Windows 10
    Thread Starter

    I did run the Crucial Scanner but I'm not sure how that helps me.

    Here's what it says:

    RAM & SSD Upgrades | Gateway DX4840 | Crucial.com



    Crucial 2GB DDR3L-1600 UDIMM

    CT2356176


    • DDR3 PC3-12800 CL=11 Unbuffered NON-ECC DDR3-1600 1.35V 256Meg x 64
    • upgrade for Gateway DX4840 system.


    • $18.99




    Crucial 2GB DDR3-1600 UDIMM

    CT4047755


    • DDR3 PC3-12800 CL=11 Unbuffered NON-ECC DDR3-1600 1.5V 256Meg x 64
    • upgrade for Gateway DX4840 system.


    • $18.99



    Crucial 4GB DDR3L-1600 UDIMM

    CT2347503


    • DDR3 PC3-12800 CL=11 Unbuffered NON-ECC DDR3-1600 1.35V 512Meg x 64
    • upgrade for Gateway DX4840 system.


    • $31.99




    Crucial 4GB Kit (2 x 2GB) DDR3L-1600 UDIMM

    CT7329212


    • DDR3 PC3-12800 CL=11 Unbuffered NON-ECC DDR3-1600 1.35V 256Meg x 64
    • upgrade for Gateway DX4840 system.


    • $37.99



    Crucial 4GB Kit (2 x 2GB) DDR3-1600 UDIMM

    CT4051568

    • DDR3 PC3-12800 CL=11 Unbuffered NON-ECC DDR3-1600 1.5V 256Meg x 64
    • upgrade for Gateway DX4840 system.


    • $37.99



    Crucial 8GB Kit (2 x 4GB) DDR3L-1600 UDIMM

    CT7338021


    • DDR3 PC3-12800 CL=11 Unbuffered NON-ECC DDR3-1600 1.35V 512Meg x 64
    • upgrade for Gateway DX4840 system.


    • $63.99
      My ComputerSystem Spec

 
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