XPS 730x, Windows 10 support?

Dell does not have plans to support ancient systems.

Not supported does not mean not working.

You can buy OEM System builder windows 10 disk.

Install with the "I don't have a key" option.

Then change the key to the 25 digit key on the WIN7 COA sticker.

Home , Pro, Ultimate does not matter but you have to tell it which version you have.

If you have Ultimate tell the disk you have windows 10 pro.

https://www.newegg.com/microsoft-windows-10-pro-64-bit-reinstall-recovery-disc-only-no-license-key-included/p/N82E16832350238

Back up your hard drive just in case. There are several freeware program that can create an image backup of your hard drive. And also back up just your data files.

Then download, install, and run Media Creation Tool.  Select the option to Upgrade This PC.

I did this for my Optiplex 3020 running Windows 10.

If you want a clean installation, you can run Media Creation Tool to create a bootable USB flash drive. Boot into it, and then wipe your hard drive before installing Windows 10.

I have done this too.

Good luck.

The Dell thermal monitor application software which was written for vista may not work in Windows 10 OS.  So you may lose Dell monitor of temp inside chassis and control of fan speed.  In addition if you have Nvidia gpu, the old Nvidia ESA system control panel does not work in Win 10. So another door closed to control the master control board in 730X. At this point you would just hope the fans are on auto pilot at reasonable speed to cool the chassis. I suggest add two custom exhaust fans at back to help chassis cooling.  A crude index of chassis temperature is cpu temp at idle, because air cooled cpu will never be cooler than ambient air around it in a closed chassis.  I think HWMONITOR tells you both cpu and gpu temp.

Don't let them scare you off upgrading to Windows 10. I seriously doubt these guys have ever seen a 730X much less upgraded one. The 730X will run flawlessly on Windows 10. I own a 730X H2C currently running on Windows 10 Pro ( digital signature copy) along with the Dell Thermal Monitor app and the AlienFX lighting control. That and a Intel Core i7-990X CPU, 12gb of ram and a Nvidia GTX 980 gpu, it will run circles around the new junk. Also, stay far away from the Nvidia ESA. It is and has always been a completely flawed installation. Use the MSI Afterburner application for GPU control. Ancient system my   

"Don't let them scare you off upgrading to Windows 10. I seriously doubt these guys have ever seen a 730X much less upgraded one. "

This is wrong on both counts.

XPS 730x
Intel Core i7 (First-Generation)
LGA 1366
Intel X58

INTEL RST Driver 11.7 is max for this chipset

12 and up do not support a chipset that old.

• 17.8.0.1065 
• 17.7.0.1006
• 17.5.2.1024
• 15.9.8.1050
• 16.8.3.1003
• 13.6.0.1002
• 12.9.0.1001
• 11.7.0.1013

Very similar to Precision T3500

https://dl.dell.com/FOLDER00858345M/1/T3500-win7-A03-CDDX4.CAB

https://www.dell.com/support/home/us/en/04/product-support/product/xps-730x/drivers

Most all Dell models from 2006 on with AT LEAST pentium D 900 series pressler cpu will install and run windows 10.

This means ancient models like Optiplex GX620, XPS 400, Precsion 380 etc work just fine.

Earlier Smithfield Pentium D works with 32 bit windows 10 but not 64 bit.

Here is a user who upgraded XPS 400 with 800 series pentium D.

https://www.youtube.com/watch?v=qa9b0TkTsLM

https://www.newegg.com/microsoft-windows-10-pro-64-bit-reinstall-recovery-disc-only-no-license-key-included/p/N82E16832350238

You may need to set the region code on your DVD drive before it will F12 boot from the DVD.

Other than that there are no issues.

LAHF stands for L oad AH from F lags and SAHF stands for S tore AH into F lags. LAHF & SAHF

Windows 8.1 and 10 REQUIRE 64 bit versions of these instructions which is why Pressler Pentium D is required for 64 bit windows.

One of the other issues is that Older processors will have spectre and meltdown issues that are never going to be fixed.

https://www.grc.com/inspectre.htm

https://www.ashampoo.com/en/usd/pin/1304/security-software/spectre-meltdown-cpu-checker

I picked this bad boy up used in 2012 for 500$ and shes still holding on strong best pc dell has ever made by far in my book had a black 630 prior to this and while im on the fence what is better looking (their like two models with different great qualities)

Anyway @morrigaan13 yes my 730x is running win 10 and alien fx works again no nivida control panel tho. Im running a 920 at 3.2 ghz 24gb of ram, gtx 1080 and a 1tb ssd as my main fith a total of 20 tb in hdds this beast has atleast another 4 years in her with another videocard down the line. Nit bad for a pc from 2008 that 12 years man not bad at all. The rams was well worth the cost. Now looking into a 975 or 980 if possible even cpu upgrade if i can get that this thing will likely scream for another 6 years for me but truly truly a tank that keeps on giving have only ever had the hdd bay fan go out thats all. Got one from some old 710 that i payed just 40$ for on craigslist if only they knew what people paid for these thing

I have upgraded from my Dell XPS-730X running Windows Vista. My 730X only had three card slots with a max 2 GB card in each slot (Max 6 GB). This was very slow with Windows 10 and memory was the issue. Put in 4GB cards (total 12 GB) runs fine. I needed to create a boot Cdrom (double density) because Windows 10 > 5GB. My XPS would not allow me to boot from USB. Install went very well (clean iron) and apps all seem to run. Remove all drives but the C drive when doing the install and add drives back and configure.  My C drive is now at 100% so I will also need an SSD. I am NOT running compute-intensive games but lots of CPU capacity (i7). You really need the extra memory. Only three memory slots. 

Are you running a SSD hard drive? That alone will speed up your machine immensely. Also look into installing the A11b bios.

Thanks !!!