Fan replacement - do I have discrete or UMA memory?

Hi,
I have an HP Pavilion dv7-6c80us laptop that I need to replace the cooling fan on.
Intel HD Graphics 3000
Intel HM65
Intel core i7 2670QM
To order a replacement fan, I need to know whether I have:
a graphics subsystem with
2048-MB of discrete memory
(Part #666391-001)
a graphics subsystem with
1024-MB of discrete memory
(Part #666390-001)
a graphics subsystem with
UMA memory
(Part #666392-001)
How do I find this information?
Thanks.
This question was solved.
View Solution.

If it only has the Intel HD 3000 Graphics, that is UMA.
The specs confirm that is the case:
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c03138569

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