After exchanging RAM - sometimes he boots, sometimes not

[Timing]

my system spec:

computer manufacturer: www.targa.de , support serial-nr.: C46537003424

model of the motherboard: Gigabyte GA-K8NF9-SI (Targa Edtion)
Bios Version GA-K8NF-9 / GA-K8NF9-SI F7 TARGA
(08/31/2005-NF-CK804-6A61FG0AC-00)
(bases on model "GA-K8NF9 Ultra (Rev 1.x)" or "GA-K8NF-9 (Rev 1.x)")
model of the memory: [NS] G.SKILL DDR PC 3200, 4 x 1.0 GB
model of the CPU: AMD Athlon 64 3700+


my problem:

Every third to fourth time I start the computer, he hangs in the boot process before mounting the ide-controller:

boot ...
Bios Version GA-K8NF-9 / GA-K8NF9-SI F7 TARGA
memory testing: 3407872K OK
memory information: Dual Channel, 128-bit
... nothing more ...

I get no beep-codes from motherboard, error message or something else ...


The other times he starts correctly.

It doesn't matter, if I start the computer or I make a reboot.


I have installed the last motherboard drivers.
I don't get a bios-update from the computer-manufacturer.
But they got me the information, that I shouldn't make a bios-update from the gigabyte homepage, because the motherboard in "Targa Edition can be a modification"

My knowledge is limited and I do not know anymore.
It cost me a lot of time and it charged my hardware.
I urgently ask for your support.

timing

[Timing]

motherboard manual

http://www.timmermeister-ing.de/moth...-SI-Manual.pdf

[G.SKILL]

K8 platform do not support 4 sticks of DDR 400 memory
try to only install 2 sticks or downgrade the memory frequency to DDR 333
thanks


G.S

[Timing]

This is known to me, the memory frequency is set to 333. The computer starts as I said in part easily and sometimes not at all!

[Timing]

Please look at this ...

http://www.timmermeister-ing.de/motherboard/sysinfo.log

[G.SKILL]

please try to install only 2 sticks to check if it's 4 sticks' issue
thanks


G.S

[Timing]

OK I did it ...

OK, I did it with 2 sticks and had no more problems.

I don't understand it, because according to the motherboard manual explicitly the support of 4 DDR DIMM DDR 400 modules should be possible.

And now

[G.SKILL]

it's correct that they accept 4 sticks of ram, but because of the limitation of AMD K8 memory controller, it could only run DDR 333 while 4 sticks are installed
and it would also be more difficult to run stably
thanks


G.S

[Timing]

Maybe I'm not smart enough to understand the problem.

Should this mean that the sticks are not backwards compatible?

What could you do to help me?

[G.SKILL]

we'd recommend you to install only 2 sticks, 'coz 4 sticks may make system unstable
or you could change to DFI motherboard, it seems to have better compatibility to run 4 sticks
thanks


G.S

[Timing]

The computer works with 333 MHz memory clock (look at my sysinfo.log). He works always stable when it he started. But he doesn't always start!

[Timing]

Please tell me, what is the meaning of "DFI motherboard"

[G.SKILL]

as we have said, K8 939 platform do not have good compatiblity with 4 sticks of memory, even at frequency DDR 333
and as we tested, only DFI's nF4 motherboard has better compatibilty to install 4 sticks of 1GB memory
but it still depends

and DFI is a motherboard manufacturer, such as ASUS or Gigabyte


G.S