Uncertain of memtest results

[ghidu]

Hi, first post here and I want to begin by saying that I really like this board and I've been wanted to join it for some time now.
My question, it may be a stupid one, concerns one of my old pcs, with a D850MV2 motherboard with 2 slots of PC800 RDRAM.
I'm having some problems for months: BSOD, failure to boot, stops at half when booting.
At first I thought is my video card, because the pc wouldn't boot and I could hear no alert sound. Change it, no luck. I've clean the pc of dust and especially the cpu cooler, no results (the temps and voltages look ok) .
Then I ran memtest86, that gave some 80000 errors.
The pc gave an alert after I ran memtest and wouldn't boot.
I managed to start the pc.
The thing is that the store I bought the pc told me that they have to test the hole pc and because it's no longer on waranty, they will charge me if they'll find that it's not the memory (the memory and cpu are the only components with waranty).
So, is there a way to make sure the memtest results are really only memory problems.
Again, it may be a noob question and I apologize, if so.
Thanks

 

[Azsen]

Definitely sounds like the memory is dead. 80,000 errors, wow! Take it back and get a replacement.

 

[ghidu]

Thank you Azsen for your response, but get this: I took from another pc 2 slots of RDRAM, ran memtest - everything OK.
I put back the 2 slots I thought they were bad, ran memtest and passed twice. 0 errors.
I don't know what to say.

 

[ChicagoPCGuy]

Ghidu:

Possibly the original sticks were not fully seated the first time around?

 

[ghidu]

Originally posted by: ChicagoPCGuy
Ghidu:

Possibly the original sticks were not fully seated the first time around?

I hope you're right ChicagoPCGuy, but I have this pc for 2 years now and it started to give me problems for a couple of months