XPS 420, CPU upgrade?

Question

My Dell XPS 420 has all the original parts it came with 13 years ago. Would it be possible to install an Intel i5 processor on this 13 year old computer? I'd appreciate all the help I could get. Thanks in advance.

savvy2 · Answer

ever do this>? (dell does not do CPU QVL lists, they DO NOT) only what they sold new, is told, not ALL.

you seem very confused, (see what 1200 folks used yet, this is REAL)

the 420 mobo is NOT CORE i3-i7 MOBO, at all it is CORE2. relic.

ever read the dell.com spec page, here it is.

new 2007 . (old)

LGA775 Socket, x38,

Intel Core 2 Quad E8500 / 3.16 GHz

why would it need another CPU. name one APP that overload said CPU. non stated.but are dirt cheap this old used, i have boxes of them here, 3 to 5 bucks a pop. used to do testing..

Q9650 runs.

the socket types are here,755 will never fit any 1150 up CPU. (unless using a sledge hammer and magic.

a better path is get XPS-8900 , a vastly better PC and vastly better future and support. at the least.

but you are correct old CPU are dirt cheap, even moving cheaper to the value of sand they sprang up from . silicon. or great HP Elitedesk , 800 G2 Desktop , full size. Gen6 Q170

when done with upgrades most users 99% will see no useful effects. ( say gaming 1 FPS more?)

if you PC has a bottle neck tell that first, and ask for cures, vast exist.. endless.

speedstep · Answer

Not possible. Core 2 Quad with bios A07

https://www.amazon.com/Extreme-Processor-SLAFN-Dell-Precision/dp/B00ZJIJ3AQ/

Core 2 Extreme QX6850 SLAFN Dell Precision T3400 XPS 420 630I 720

This is Socket 775 motherboard.

There are other issues with this old model.

Not worth spending money on a Vista machine from 2007 that needs $100 just for the windows 10 home license.

A machine with I5 can be had for less than the $199 pro licence.

https://www.lambroinc.com/desktops?lightbox=dataItem-k5sk5m2k1

speedstep · Answer

Q8400 is 1333 fsb  Q6600 is 1066 fsb so if you get one go for the Q8400 https://www.amazon.com/gp/offer-listing/B086C8YJBH   Intel Core 2 Quad Q8400 Desktop CPU Processor Model: SLGT6 Socket: LGA775

redxps630 · Answer

Agree that it is not prudent to spend any significant $ on new cpu, but if you have an original core 2 duo, and you really want to hold on to this LGA775 socket relic to run modern Win 10, you could just get a core2 quad Q6600 for <$8 and consider it a modest upgrade.  no need to get core2quad Q9650, not worth it.  For internet, email or casual light gaming that do not demand much cpu power.  forget about i3 and above.

redxps630 · Answer

quad core Q6600 and duo core E8400 both work in XPS420.  You can google Q6600 vs E8400 to decide on your own whether either cpu is better than your original.

XPS Desktops

XPS 420, CPU upgrade?

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