Processor Upgrade Alienware Chipset Southbridge H87

dustinthetoucan · Apr 25, 2017

Hello all,

I have never upgraded a processor before, and have only built one PC. My work is currently about to upgrade an old Alienware PC (Don't ask how they ended up with it, long story).

We're trying to get an i7 with the best bang for the buck. Or even just best bang.

Model: OPGRP5
Chipset: Intel Haswell
Southbridge: Intel H87
LPCIO: Fintek F71889A

Please tell me if more information is required. All help and input is much appreciated.

captaincharisma · Apr 25, 2017

the best option would be is to do a search for the model number and see if you can find what CPU options it came with. bran name PC's usually lock down the BIOS so the processors it supports can be very limited. also check to see if there are any BIOS updates for it

why_wolf · Apr 25, 2017

So Haswell Era then. The best you "might" be able to use is the i7-4790K then the i7-4790. But like captain said you need to find out what CPUs that board actually supports as OEMs love to severally limit which CPUs they support to force you into buying a whole new rig instead of just a new CPU.

COLGeek · Apr 25, 2017

What model Alienware are you using? And, what CPU does it have installed now?

dustinthetoucan · Apr 25, 2017

COLGeek :

Model: Alienware X51 R2
Current CPU: i3-4130

why_wolf · Apr 25, 2017

according to the dell website that model used the following CPUs
http://www.dell.com/support/article/us/en/19/SLN296934/alienware-x51-r2-system-specifications?lang=EN

Intel® Core™ i3-4150 (Dual Core, 3MB Cache, 3.5 GHz)
Intel® Core™ i5-4430 (Quad Core, 6MB Cache, up to 3.2 GHz w/ Turbo Boost)
Intel® Core™ i5-4460 (Quad Core, 6MB Cache, up to 3.4 GHz w/ Turbo Boost)
Intel® Core™ i7-4770 (Quad Core, 8MB Cache, up to 3.9 GHz w/ Turbo Boost)
Intel® Core™ i7-4790 (Quad Core, 8MB Cache, up to 4.0 GHz w/ Turbo Boost)
Intel® Core™ i7-4790K(Quad Core, 8MB Cache, up to 4.4 GHz w/ Turbo Boost)

So it looks like you are good to use the 4790 or 4790K. Please note since this a H series motherboard you will not be able to overclock which reduces the point of the 4790K. However even at stock the 4790K runs a bit faster than the 4790.

dustinthetoucan · Apr 26, 2017

why_wolf :

according to the dell website that model used the following CPUs
http://www.dell.com/support/article/us/en/19/SLN296934/alienware-x51-r2-system-specifications?lang=EN

Intel® Core™ i3-4150 (Dual Core, 3MB Cache, 3.5 GHz)
Intel® Core™ i5-4430 (Quad Core, 6MB Cache, up to 3.2 GHz w/ Turbo Boost)
Intel® Core™ i5-4460 (Quad Core, 6MB Cache, up to 3.4 GHz w/ Turbo Boost)
Intel® Core™ i7-4770 (Quad Core, 8MB Cache, up to 3.9 GHz w/ Turbo Boost)
Intel® Core™ i7-4790 (Quad Core, 8MB Cache, up to 4.0 GHz w/ Turbo Boost)
Intel® Core™ i7-4790K(Quad Core, 8MB Cache, up to 4.4 GHz w/ Turbo Boost)

So it looks like you are good to use the 4790 or 4790K. Please note since this a H series motherboard you will not be able to overclock which reduces the point of the 4790K. However even at stock the 4790K runs a bit faster than the 4790.

You're the MVP. Thank you good sir!

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