Hi,
As mentioned before, there are MANY dv7t editions and special editions. We can have dv7t-3000, dv7t-4000 .... and very hard to find the right specs. Please use the following link to work out the model/product number:
http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&cc=us&docname=c00033108
Your machine could be the following one:
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&lc=en&product=5292645&
If yes, page #4 of the following manual shows it supports 16Gb max:
http://h10025.www1.hp.com/ewfrf/wc/manualCategory?cc=us&dlc=en&lc=en&product=5292645&
You can have 2 x 8Gb, no other choice. Only few laptops which have 4 slots and support up to 32Gb. No way on this earth at this time you can find a laptop which supports 132 Gb of RAM.
Regards.