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  1. #21
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    Ahh, I see... the venerable and somewhat infamous Pentium D ...gah! The Clayton's 64bit processor ; the 64bit CPU to have when you don't want a 64bit wide memory bus =)

    As far as M$ are concerned, that CPU is unsupported by later 64bit incantations of win10, not because of the memory bus, but because that CPU model lacks support for the required AES instructions and trusted execution boundaries... something like that. I recall reading a post on reddit yonks back about this saying it was possible, but extremely problematic at best, and not worth the effort. Actually, I think it was back at win8 or such the extra 64bit CPU requirements came into enforcement, and afaik the 32bit versions of win8+ & win10 are free of these requirements and install/work fine -- google 'pentium D 915 windows 10' or such, and have a read.

    Of course, any 64bit mainstream linux distro would install and run fine on the same hardware, but that said, given the nature of the CPU design itself (read: age, a few Gens old =), I'd even advice installing the 32bit cuts of linux instead of 64bit, to avoid the known and bound to happen memory bandwidth bottleneck =)
    Last edited by wotnot; 27-05-20 at 10:22 PM.

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  • #22
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    Quote Originally Posted by wotnot View Post
    Ahh, I see... the venerable and somewhat infamous Pentium D ...gah! The Clayton's 64bit processor ; the 64bit CPU to have when you don't want a 64bit wide memory bus =)

    As far as M$ are concerned, that CPU is unsupported by later 64bit incantations of win10, not because of the memory bus, but because that CPU model lacks support for the required AES instructions and trusted execution boundaries... something like that. I recall reading a post on reddit yonks back about this saying it was possible, but extremely problematic at best, and not worth the effort. Actually, I think it was back at win8 or such the extra 64bit CPU requirements came into enforcement, and afaik the 32bit versions of win8+ & win10 are free of these requirements and install/work fine -- google 'pentium D 915 windows 10' or such, and have a read.

    Of course, any 64bit mainstream linux distro would install and run fine on the same hardware, but that said, given the nature of the CPU design itself (read: age, a few Gens old =), I'd even advice installing the 32bit cuts of linux instead of 64bit, to avoid the known and bound to happen memory bandwidth bottleneck =)
    That maybe the case and I'll check the instruction set but it doesn't explain why the installer won't boot.

    Oh and .... absolutely NO to linux.

  • #23
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    Quote Originally Posted by loopyloo View Post
    That maybe the case and I'll check the instruction set but it doesn't explain why the installer won't boot.

    Oh and .... absolutely NO to linux.
    You could prolly convince OSX onto it and create a low-end hackintosh =)

    To answer your question, the 64bit win10 installer shouts out to CPU for instruction CMPXCHG16B ; if that nulls the wheels fall off, a lift somewhere in the world goes haywire, and the computer reaches nirvana.

    Close check what CPU you've got.. hp (and a host of others) end up fractionally fitting CPU types. Some reports out there suggest pentiun D 940 is bottom spec.

    And remember as always, Murphy lurks in the BIOS

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  • #25
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    Quote Originally Posted by loopyloo View Post

    Intel says no, you can't play 64bit win10 on that CPU

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    As you've had plenty of help I shall be "serious" for a moment. Remove every bit of RAM and All cards (except Video if you do not have onboard). Unplug your HDDs. and try and boot. You should not get past BIOS because it is complaining about lack of RAM. If all is well. Install one stick of RAM and try again. This time you should be able to boot.
    Your Install medium should then complain about lack of space to install. Re-boot and install your HDD and attempt to re-install again. You should be able to install windows then. If it falls over, then I'd try another drive. Once you have windows installed, start by re-installing one device at a time with re-boot every time. When it all falls in a heap, remove the last installed device and try again. That's most likely the bit that is causing issues.

    I know you, and others are leery of Linux, but one advantage is that you can actually run a live session without installing it. I'd also try a 64bit version of that to prove your computer is actually 64bit capable.
    I'm out of my mind, but feel free to leave a message...

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    i don't know if this adds any thing


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  • #28
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    seroiusly, even if you get it to install it will run like crap.

    you really need a 500gb ssd and 16gb of ram and a modern processor for w10 64bit.

    anything less and you will be whinging about how slow w10 is............

    99% of people whinging about w10 have it on a sub spec pc.....

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    Quote Originally Posted by wotnot View Post
    Intel says no, you can't play 64bit win10 on that CPU
    Closest I could find there is this one :

    It shows instruction set is 64bit.

  • #30
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    Quote Originally Posted by hoe View Post
    seroiusly, even if you get it to install it will run like crap......
    Indeed...but OP won't get to find out. The CAD program is likely looking for 64bit wide memory bus as well, which these old CPUs don't have.

    Lost cause, time to upgrade, end of story =)

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    Quote Originally Posted by loopyloo View Post
    Closest I could find there is this one :

    It shows instruction set is 64bit.
    Reiterating;

    Lost cause, time to upgrade, end of story =)

    edit: and as I pointed out above, intel's list of CPU types compatible with 64bit win10 -- you have a Smithfield -- it is not on the list --

    Please stop flogging a dead horse =)
    Last edited by wotnot; 28-05-20 at 12:19 PM.

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    Quote Originally Posted by wotnot View Post
    The CAD program is likely looking for 64bit wide memory bus as well, which these old CPUs don't have.
    Yeah that could be right

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    Quote Originally Posted by loopyloo View Post
    Yeah that could be right
    i may have solution for you, i just bought-fixed a shit old 775 dell sff for my nephew (well nieces son) & same drama
    had a blank drive & i tried win 10-error- xp- bsod, win 7 x64, fine
    its running 4gb ram with old 80gb drive, can be sluggish but for a brat its fine
    pm me if you need a x64 win 7.
    https://www.facebook.com/philquad68

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    Have a look at govt auctions you can often pick up a reasonably specced machine for next to nothing.
    I'm out of my mind, but feel free to leave a message...

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    Quote Originally Posted by Philquad View Post
    i may have solution for you, i just bought-fixed a shit old 775 dell sff for my nephew (well nieces son) & same drama
    had a blank drive & i tried win 10-error- xp- bsod, win 7 x64, fine
    its running 4gb ram with old 80gb drive, can be sluggish but for a brat its fine
    pm me if you need a x64 win 7.
    That's not a bad idea really. I guess going back an OS shouldn't hurt too much, and it would give me time to save my pennies.
    I do have a copy of win7 64 ultimate. I'll let you know if it fails.
    Just for kicks I pulled a couple of old computers out of the shed to see what happens when trying to load win10 64 onto them. One has a pentium E2140 1.6 with 1GB ram a nd it installed and run fine. The other computer had exactly the processor the post is about (D820) and it failed the install in the same way, interesting.
    I'm going to put the win7 on a spare machine to test it out, so far it's installing.

  • #36
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    Quote Originally Posted by lsemmens View Post
    Have a look at govt auctions you can often pick up a reasonably specced machine for next to nothing.
    That sounds ok.
    Where do I find these auctions ?

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    had similar issues and what worked for me was changing the bios setting
    for the drive AHCI

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    graysonline computers

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    ive bought a few like this

    hdd's aint much chop but i5 with 8 ddr3 man i spend more buying a case & psu, chuck in a cheep sdd, laughin for for $200 odd.
    https://www.facebook.com/philquad68

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    Quote Originally Posted by Philquad View Post
    ive bought a few like this

    hdd's aint much chop but i5 with 8 ddr3 man i spend more buying a case & psu, chuck in a cheep sdd, laughin for for $200 odd.
    I picked up 3 lenovo thinkcenters with I7 - 8gig ram and threw a 256g ssd into them
    and they run fantastic for $130 a pop . when i was getting the drivers for them they were
    the same as the HP units
    Last edited by fandtm666; 29-05-20 at 11:32 AM.

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