How can I ad an additional stick of RAM (2 GB) on my TC4400 tablet? Where the additional slot is? I didn't find it. Thank you, Benjamin

http://www8.hp.com/us/en/support-search.html?tab=1#/qryterm=compaq%20tc4400&searchtype=s-002

this is where your find the moel drivers for tablet , there are two available , so please read before installing.

upi cam u need to buy a ddr2 667 mhz stick (2gb) as i think there is only 1 onboard slot for ram. hope this helps let me know

Pull out extended ram & try again.

Firstly, many of your components are highly sensitive to static shock (the poke you get from touching certain things), so take care to avoid exposing computer's components to this.Try changing your RAM\Memory. Or just remove one stick and then try turning it on. If it works, then the stick you removed is causing the problem. If it still doesn't work right after removing one stick, then take out the other stick of RAM and put back in the one you took out to begin with. If you get it to start, then most likely the stick that you have removed is the cause of the problem. Try putting the sticks in different slots (one at a time) as well. Sometimes the slots go bad but not the memory. If you tested the RAM and the slots as described above and it still won't come on, then you may have some more severe problems that may require you to have the motherboard replaced in order for it to work right. Such as, the video chip is malfunctioning (this is affixed to the board and not easy to replace, the chipset is burned out (again, affixed to the motherboard), & etc. Please leave feedback about this solution. Thank you!

go to hp site and check is the model support 320gb hdd or not if not trun yr hdd in limited capisity

There are laptops that do not have two slots for RAM. the EEE Pc's for example only have one slot.

I don't thank they have it out for tablet yet. Wait a bit and they should.

if you cant afford to get it repaired, then check the processor, hdd, ram slots to ensure that they are all in their fixed possitions,

the problem may be that a module of ram has come loose or your processor has, if they haven't then get yourself a digital multimeter and learn about computer electronics,, although buying a new computer maybe the quickest option.....

chek your laptop first if it can accept the 1gig memory. if so then ask the supplier of your 2 pcs 512 memory to replace with 1 pc. 1gig memory. and also ask assistance to replace it.