F3-12800CL7D Stability issues

[Tom10]

Hi all

My set up is as follows

CPU = AMD Phenom II X4 965 (Black Edition)
Motherboard = M4A89GTD PRO/USB3
Memory = GSkill Ripjaw (F3-12800CL7D) 4x 2gb

I had a lot of issues trying to get the system stable, and it seems to be a RAM issue. I bought this RAM because it was on the QVL for my motherboard however on further investigation Gskill dont have this RAM to work(well) on my motherboard (strange).

I had left it set to defaults and had some blue screen/screen locks

Default was Auto voltage and frequency of RAM 800mhz timing 9/9/9/24

I have tried setting to Gskills specification for the memory 1600mhz 7-8-7 (but i believe my processor can only handle 1333 unless OC'd) so i also tried 1333mhz 7-8-7 with 1.6 volt set manual.

All these set ups have been unstable, sometimes leading to pc not booting/not shutting down/crashing etc.

I ran prime and after 1 hour it had a rounding error. Using 1333mhz 7-8-7 1.6v.

So i decided to take 2 modules out, reset bios to defaults and leave it as is and it seems to be running really smoothly (2 + hours prime no errors) and 4-5 days of usage and reboots no errors.

Currently testing the two modules i took out and perhaps i have a faulty module(will take a while to see this).

But perhaps there is an issue of using more than 2 modules. And If i want to Run at 1600mhz is there an overclock i can do on CPU.

Thanks for reading hope someone can help me get my system stable and utilising my 8gb of Ram. Any other information you need i will do my best to supply

[Tom10]

Just an update.

I have tested all modules in different pairs etc. When working with 2 modules on default bios settings the system seems stable over 3 hours on prime and not one error.

So anyone know a solution to getting all 4 modules working (and if possible at 1600mhz).

Thanks

[GSKILL TECH]

Try DDR3-1333 8-8-8-24 1.50V. Do you have the 125W CPU?

Thank you
GSKILL TECH

[Tom10]

someone coiffure

I'll give 1.5 volts a try with all 4 modules (and timing you mentioned) I guess leave CPU-NB etc to Auto ?

Also yes it is the 125w version, but i should say i have a 1000watt Antec PSU so i don't think a lack of power is an issue if you were thinking this.

Thanks for getting back to me. Will try this now and hope for some miracle

[Tom10]

Thanks for your help so far

Using 8-8-8-24 and 1.5v on DRAM has created a stable system (for now at least). I ran prime for over 4 hours and no errors.

Im suprised its working so well as we are under volting the ram (manual says 1.6-1.65v). For now Im happy will report back if i have any other issues.

Thanks again

[GSKILL TECH]

Glad to hear. We are undervolting because it is running at DDR3-1333 not it's rated DDR3-1600. Voltage is very important, too much or too little can both cause problems.

Thank you
GSKILL TECH