MEMORY PROBLEM (P4T533 + RDRAM), PLEASE HEEELP !!!

[Berserker23]

my main configuration is:

P4T533-R mobo
P4/2,8 Ghz
ATI RADEON 9700 PRO card powered by 3CLUB
1 x 512 MB 32-bit PC1066 RAM chip (SAMSUNG)
2x120 GB MAXTOR HDDs in a stripped set
CREATIVE AUDIGY 2 SOUNDBLASTER

and I have the following problem:

If playing games ( all kinds of games ), each game shuts down after a random play-time. I mean, it looks like if you hit ALT + F4 to close it. I had mobo BIOS ver. 1005 and flashed it to the next version 1006. The problem persists, but now if the game stops and PC begins to read out the game data from the RAM, a window appears saying something about an exceptional gathering memory problem. The TURBO-RAM mode isnt activated in BIOS, and nothing is overclocked. The temperature of mobo and CPU is on an acceptible level too.

I tested the RDRAM with QAPlus/FE Version 5.60 and no errors were detected.

I think, its a mobo problem, but I dont know how to fix it.

Please tell me your expirience about that if you had similar problems.

[Droppyale]

What kind of Power Supply do you have?

I was having the same problems, untill I got a new PSU.

[poopeyhed2]

Please read my thread about your problem. I understand that in that thread there is just freezing, but the problem is basically the same.

[Berserker23]

@Droppyale: I am using a 400 Watt PSU I paid 80 EUR for
the manufacturer is BE QUIET

@poopeyhe2d: OK, Ill do so :-)

[Berserker23]

I didn't find any useful answer in the above post....
But I found out what causes the error occuring on my system:

Its definitely the RDRAM. Although I tested the memory with a testprogram and that program, QAPlus, didn't found any problems, I made following steps:

I tested the stability of my system with different clocks of the RDRAM.
If I run the RDRAM on 533 MHz and the TURBO MODE is enabled in the BIOS, each game crashes after 15 - 20 min of use.
If this TURBO MODE is disabled and RDRAM runs on 533 MHz, I can play upto 2 - 3 hours before the game crashes... sometimes the game crashes after 10 min but that is random.
BUT if I change the RAM clock multiplier to x3 and RDRAM runs on 400 MHz without the TURBO MODE, the system is much much more stable !!! I mean, within 3 days I had only ONE crash !

Now my question: Do you all think, I have a defective RDRAM chip or maybe the MOBO is my problem ? I am sure, the RDRAM is a right PC4200, 512 MB and 32 bit chip manufanctered by SAMSUNG...

THANX for your time you spend in reading and undestanding my threads !

bersi

[Berserker23]

plz help me with ur opinion...