Showing results for 
Search instead for 
Do you mean 
Punch Card
Posts: 20
Registered: ‎07-30-2011
Location: USA
Message 1 of 3 (2,156 Views)

Upgrade Processor on 77521QU - H420 desktop

I have a 77521QU  -  H420 Desktop with a Intel G620 processor and wanted to find out what other  LGA 1155 processors will work. Can't find any data but this is what I'm considering installing.

Intel Core i3-2100 Sandy Bridge 3.1GHz 2 x 256KB L2 Cache 3MB L3 Cache LGA 1155 65W Dual-Core


I see other H420 with the i3 - 2100 CPU but not sure if it is the same motherboard.


Retired Guru
Posts: 2,090
Registered: ‎07-13-2009
Location: USA
Message 2 of 3 (2,140 Views)

Re: Upgrade Processor on 77521QU - H420 desktop

According to the PSREF for Essential Desktops

H420 (7752) at


It looks like the motherboard would be the same.

I am not 100% sure, but I see nothing that indicates

that there are different MBs.

What's DOS?
Posts: 1
Registered: ‎12-26-2011
Location: columbia
Message 3 of 3 (1,844 Views)

Re: Upgrade Processor on 77521QU - H420 desktop

[ Edited ]

I was wondering the model of the mother board in this computer is, I am moving the parts of this computer into another computer's case and was wondering if i could find a manual to the exact motherboard so i could plug in the case wires, please reply  

top kudoed authors
User Kudos Count