i already mentioned the details on my 1st post
all items are new except your is 2nd hand
i already tried watever i can try to change... e.g. changing cables, change different slot.

if u not selling whole set y u said full box?
u should say mobo/ proc only or add-on some exception which u can find it in other seller's post. They mentioned selling "bla bla bla ONLY" , or package include "bla bla"
Instead you saying full box. State your intentions.

i trusted u wanted to buy more from u but such a co-incident u increased the RAM price. 

State your intentions. 

Kay, i suggest u return the motherboard to him, and ask for refund. close the case asap. not need trouble and waste ur time.

Y bother to waste money to check all the mobo and stuff, just refund, end of story.
If can ask for compensation for wasting your precious time and travel fees.

He is not honest at the begining of sales (full box=everything in the box just like new).

And the seller reply, i sell u RMxxx cheaper, ofcos less item inside (ask seller sell to others if he plan to sell at original price with FULL BOX).
Finaly, u bring this issue up here and seller only started to peace out by saying ok lar, i send u watever cable left over.

haha..your analogy is good. I agree. Seller is dishonest. Because of what you did, when you said that you tested the motherboard before sending, you think people will believe you?