can Kingston KVR model and KTH model use in same machine

[chamara54]

I have assemble pc (asus,Asrock) currently running under 1GB Kingston KVR type memory model (DDR1)
I'm going to update memory to 2 gb using Kingston PC3200 400 MHz (DDR1) KTH type is it possible ?
can Kingston KVR model and KTH model use in same machine
(mixing 2 ram type possible in assemble pc)

 

[chamara54]

look like no ram expert ? @tomshardware.com to answer my issue