F3-12800CL7D-4GBECO (AND) Asus M4A785TD-V EVO

[Leinad1]

Hi,

I have some problems with my system. One week ago I unplugged my PC from the 220V socket for 3 days. After that problems started. I don't know what was the memory configuration back there...

System:
AMD Phenom II X4 955BE
Asus M4A785TD-V EVO
F3-12800CL7D-4GBECO

No Overclock, all stock.
At first I was getting some BSOD. Here it is some testing I made:

1600Mhz @ 7-8-7-24 1T (1.35V)

Memory 1:


Memory 2:
BIOS don't even make the POST. Can't start the test at all.

__________________________________________________ ______________________

1600Mhz @ 7-8-7-24 1T (1.425V)

Memory 1:


Memory 2:


__________________________________________________ ______________________

1600Mhz @ 7-8-7-24 1T (1.425V) (Dual channel)

Memory 1 + Memory 2 (Dual-channel):

After this I thought it was rock stable. But in the following 2 days, I get 1 freeze per day. Like this: http://www.youtube.com/watch?v=NdfQ-k3C7v4
First freeze was after 40min off Linx test.

If I change CL from 7 to 8, even at 1.35V, everything seems to run ok. I don't understand WTF is happening!!

Can someone give me some help?

PS: Sorry for the rubbish english...

[GSKILL TECH]

Is your CPU-NB Frequency 2400MHz? Try DRAM Voltage 1.40-1.45V or CPU-NB Voltage 1.20V and it should be stable.

Thank you
GSKILL TECH

[Leinad1]

It's like this:



I only have 1.35, 1.425 and 1.5 in Vram. After 1.5V the increments are much smaller.

[GSKILL TECH]

NB Frequency should be 2400MHz.

Try 1.425V

Thank you
GSKILL TECH

[Leinad1]

It was already in 1.425V when I had the freezing problems...

[GSKILL TECH]

Make sure the NB Frequency is correct, if unstable, then use 1.50V.

Thank you
GSKILL TECH

[Leinad1]

The system is getting errors again.

I put 1,5V instead of the 1,425V, but I get an error in occt (Linpack) after 5 minutes.
The CPU is @ 3,120 Ghz and stock voltage. That's below de stock frequency.

I dont know what to do....

I will try some Memtest later, to see what happens.

[GSKILL TECH]

Do you have the latest BIOS?

Thank you
GSKILL TECH

[Leinad1]

Yes.

I have some news.

I put memtest running with 1,425Vram, with 1,5Vram, with the cpu at 2,6Ghz (3.2Ghz default) and with CPU-NB Voltage at 1.20V

All failed in 5/6 minutes...

Then I put all timings in Auto and memory frequency at 400Mhz (in reality it's 480, due to the NB Frequency of 240Mhz). After 20min no errors, so I restarted the computer to make some bios changes.

I put 667Mhz (800Mhz real) and 7-8-7 in timings, and all the other in auto. The motherboard put this : 7-8-7-24, tRC = 33, CR = 1T. It passed memtest (1,5 hours) and OCCT (1hr in Linpack).

Before this the timings were: 7-8-7-24, tRC = 40, CR = 1T, and the system was unstable.

I don't really understand what is happening...


Lets see how much time this will stay stable.

[GSKILL TECH]

Yea, that's why in our guide there is Method# 1 and Method #2. Some CPUs like one way or another, some can do both. That's computers for you.

Enjoy your weekend!

Thank you
GSKILL TECH