GA-MA790X-UD3P 8GB Problem

[St0nemask]

Well, I finally came to it in buying a bit more ram for my system, but not wihout problems.

I had:

2x2GB Twin2x4096-6400C5DHX G

then I bought another set of those sticks, so I now have 8GB, that is 2x2GB + 2x2GB

but, whenever I try to play a game, I get some huge error effects, sometimes the game hangs a bit, the screen freezes for a little while and so forth, and it sometimes seems to react slower, that is lagging a little bit, taking a little while longer to react in the windows OS.

CPU: AMD Phenom II X4 965BE
Deneb ID 14
Socket AM3 (938)
45nm 1.392V

BIOS: F6

RAM:
Type: DDR2, Channels Dual
Size 8192MB, DC Mode: unganged (heard it was better to leave it unganged, then ganged)
NB Freq.: 2009.1MHZ
DRAM Freq.: 401.8MHz
FSB DRAM: 1:2
CAS#: 5
RAS#: 5
RAS#: 5
Cycle: 18
Bank: 18
CR: 2T

                        Slot 1:   
Type:               DDR2     
Module Size:    2048MB
Max BW:          PC2-6400 (400 Mhz)
Manufactyrer: Corsair
Part #:            CM2x2048-6400C5DHS
                        JDEC #1:     JDEC 2:
Freq:               270MHz        400MHz
CAS#:             4.0               5.0
RAS2CAS#:    4                   5
RAS# Pre:       4                  5
tRAS:              13                18
tRC                  15              22
V:                    1.8V           1.8V

The same for all four sticks in CPU-Z.

GPU: Radeon HD 5770
Code: RV840
Tech: 40nm
Core: 849MHz
RAM: 1024MB
Memory: 1200MHZ

PSU: Cooler Master 620W.

If anymore specs are required, please ask.

[Dark Mantis]

Hi

Have you mixed the two sets in the channels ?

It would probably be better to keep them seperate as they maybe the same but they are not matched.

[St0nemask]

I could try that, will try that tomorrow and post results, busy daddy needs to go to sleep

and to be sure, you are talking about mixing 1+2x3+4 into f.ex.: 1+3x2+4?

[Dark Mantis]

I am assuming that at the moment you have the originals in 1+3 and the new in 2+4 which means that you are mixing the two packs in each channel. Make sure that you mark each kit first before playing around.

[St0nemask]

nope, they are in pairs right now, that is 1+2x3+4, that is 1+2 are the original ones, and 3+4 are the new ones

righfully, it should be 0+1x2+3, but you get the idea.

[Dark Mantis]

After checking your particular motherboard layout you need to put kit A into DDR2_0 and DDR2_3 and kit B into DDR2_2 and DDR2_4

[St0nemask]

thx man, it seems to be working

[Dark Mantis]

You're welcome. I'm just glad that it is ok.

[St0nemask]

well, I guess I spoke a little too soon, before, it always happened when the game was starting, or booting up, and then sometimes right  after I start playing, but now it happens a little while into the game, I have tried exchanging the new ones, but haven´t tried putting the new ones yet into 0 & 3, becuase I don´t think that´s the case anymore, what could it be?

[Dark Mantis]

Hi

I would think that you will probably need to increase your northbridge voltage to compensate for filling the slots. I am not that fmiliar with this platform though so I will leave it to one of the AMD afficinados to tell you how much is safe.

[Tiger]

No memory manufacturer will guarantee that mixing two of their kits together will work together. It is possible that they will work together. You may also want to use memtest86+ http://www.memtest.org/ to test for defective modules.

If you want to use 8GB, you should use an 8GB kit, not two 4GB kits.
Patriot Gamer Series 8GB (2 x 4GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Desktop Memory Model PGS28G6400ELK
http://www.patriotmemory.com/products/detailp.jsp?prodline=5&catid=40&prodgroupid=117&id=854&type=1