Question Trying to upgrade cpu for windows 11

[Ray MC]

Hi, I have a dell inspiron 3847 with a 088dt1 v A01 board with i7-4790 with 16gn RAM. I want to change the cpu to work with windows 11 and was thinking about the i5 14400

is this compatible for a straight swap or what else would I need?

Appreciate any help. Thanks

 

[Gururu]

You must consider the sockets. See Compatibility section comparison. Since they are different sockets, you will need a newer motherboard.

 

[Misgar]

I have a bunch of ancient motherboards with LGA1150 CPUs but I don't consider them suitable candidates for Windows 11 upgrades (even using rufus to disable TPM 2.0, Secure Boot, etc.). Some of my boards are CSM only, not UEFI, which can affect booting from Windows 11.

If this is your Dell motherboard (see photo), the footprint appears to be mATX and the PSU connections are standard 24-way and 4-way, so you could upgrade to a modern low power mATX board with Intel or AMD CPU and still use the existing PSU (see CAUTION).

N.B. The 4-way 12VATX power connection to the mobo (white connector in bottom left hand corner of photo) is regarded as a bit weak nowadays. Modern motherboards usually come with an 8-way CPU power connector, others with an 8-way plus a 4-way feed for overclocking big CPUs.

CAUTION: Before upgrading with a new(er) motherboard, check the output of your power supply. Dell have a tendency to fit very conservatively rated PSUs of only a few hundred Watts, so there's no point getting a powerful new CPU or GPU. If the Dell PSU is rated at less than 200W, get rid of it before upgrading.

Another thing to consider is that if your computer is more than 6 years old, the PSU may be reaching the end of its design life. Now might be a good time to buy a new PSU with a higher power rating if you change the mobo. A typical low-end desktop PC without a separate GPU card will probably pull around 100W to 120W max and average around 50 to 60W. A gaming rig will require considerably more power.

The i7-4790 was released on May11, 2014, so the design is now over a decade old. You could try installing Windows 11 using rufus to create a compatible image, but I'd recommend buying a brand new system or a more recent mobo/cpu/ram combo than your current LGA1150.
https://rufus.ie/en/

List of Intel and AMD CPUs supported by Windows 11 22H2:
https://learn.microsoft.com/en-gb/w...ed/windows-11-22h2-supported-intel-processors

https://learn.microsoft.com/en-gb/w...rted/windows-11-22h2-supported-amd-processors

 

[faalin]

Hi, I have a dell inspiron 3847 with a 088dt1 v A01 board with i7-4790 with 16gn RAM. I want to change the cpu to work with windows 11 and was thinking about the i5 14400

is this compatible for a straight swap or what else would I need?

Appreciate any help. Thanks

No that computer "technically" can not run windows 11, the CPU you have in there now is the highest CPU for that socket. You will have to replace the entire computer to be windows 11 compliant.

That being said there are way around installing windows 11 on older hardware, you just need to google it.

 

[Ray MC]

I have a bunch of ancient motherboards with LGA1150 CPUs but I don't consider them suitable candidates for Windows 11 upgrades (even using rufus to disable TPM 2.0, Secure Boot, etc.). Some of my boards are CSM only, not UEFI, which can affect booting from Windows 11.

If this is your Dell motherboard (see photo), the footprint appears to be mATX and the PSU connections are standard 24-way and 4-way, so you could upgrade to a modern low power mATX board with Intel or AMD CPU and still use the existing PSU (see CAUTION).

N.B. The 4-way 12VATX power connection to the mobo (white connector in bottom left hand corner of photo) is regarded as a bit weak nowadays. Modern motherboards usually come with an 8-way CPU power connector, others with an 8-way plus a 4-way feed for overclocking big CPUs.

CAUTION: Before upgrading with a new(er) motherboard, check the output of your power supply. Dell have a tendency to fit very conservatively rated PSUs of only a few hundred Watts, so there's no point getting a powerful new CPU or GPU. If the Dell PSU is rated at less than 200W, get rid of it before upgrading.

Another thing to consider is that if your computer is more than 6 years old, the PSU may be reaching the end of its design life. Now might be a good time to buy a new PSU with a higher power rating if you change the mobo. A typical low-end desktop PC without a separate GPU card will probably pull around 100W to 120W max and average around 50 to 60W. A gaming rig will require considerably more power.

The i7-4790 was released on May11, 2014, so the design is now over a decade old. You could try installing Windows 11 using rufus to create a compatible image, but I'd recommend buying a brand new system or a more recent mobo/cpu/ram combo than your current LGA1150.
https://rufus.ie/en/

List of Intel and AMD CPUs supported by Windows 11 22H2:
https://learn.microsoft.com/en-gb/w...ed/windows-11-22h2-supported-intel-processors

https://learn.microsoft.com/en-gb/w...rted/windows-11-22h2-supported-amd-processors

Thanks - very helpful.

 

[Ray MC]

No that computer "technically" can not run windows 11, the CPU you have in there now is the highest CPU for that socket. You will have to replace the entire computer to be windows 11 compliant.

That being said there are way around installing windows 11 on older hardware, you just need to google it.

Thanks - had looked at that but decided it wasn't the right solution for me 🙂

 

[ohio_buckeye]

Cheapest solution is likely going out on ebay and finding a used office pc and going that route. Though if you watch, I've seen stuff on facebook marketplace come up for example where maybe someone has an old board and cpu that might be compatible for 50 bucks or so. So perhaps if you could find a deal similar to that and pick up a case, ram and power supply you could cobble something together that you can replace parts etc as time goes on.

 

[Misgar]

There's nothing "wrong" with an i7-4790. I have three i7-4770K systems myself. I'm writing this on an old Phenom 955 whilst testing server pulls on a SAS HBA flashed to IT-mode.

If you feel like experimenting with your current system, download the latest Window 11 ISO file from Microsoft, then use rufus to create a bootable USB stick with TPM and Secure Boot switched off.

Disconnect your Windows10 hard disk or SSD drive (to maintain your OS intact) and and connect a cheap SATA SSD (at least 120GB) in its place.

Boot the computer from USB and (attempt) to install Windows 11 on the new SATA SSD. If you don't have a Microsoft Account and an internet connection, things might get tricky. Microsoft have made it all but impossible to install Windows 11 with a Local Account (my preferred option).

I'm still using Windows 10 and will not be switching to Windows 11 until October. I installed Windows 11 on the day it came out as a Virtual Machine under Hyper-V but didn't like the new interface. Two thirds of my machines are too old to be fully compliant with 11.

Cheapest solution is likely going out on ebay

The cheapest working mobo I bought on eBay (including CPU and RAM) cost the equivalent of US $6.00. Not Window s 11 compatible though. It's currently sitting in a TrueNAS Core server.

 

[ohio_buckeye]

For example there is stuff on eBay like this reasonably cheap.

https://www.ebay.com/itm/1161552095...1QoO_yZSxW&var=&widget_ver=artemis&media=COPY