AMD CPU + G.Skill DDR3-1600

[Force0321]

Force0321

Do you have the latest BIOS for your mobo?

Tradesman,
Yes from the Asus site, ver 0813

[Force0321]

grampabob,



Force0321,

NB Frequency 2400MHz? CPU-NB Voltage 1.20V?

Make sure to manually input DRAM frequency, timings, and voltage.

Thank you
GSKILL TECH

Just tried again.

NB freq 2400
Dram freq 1600
Dram timing 9,9,9,24
Dram voltage 1.50v
CPU-NB manual voltage was 1.15 stock. I upped it to 1.25v

Rebooted CPU-id shows everything working good. Correct timings and Freq.

Fired up Prime95 for a blend test.
BSOD within 10 seconds.

I'm back to 1333 mem freq, 9,9,9,24 timings and stable.

/shrug
Dunno what else to try : (

[Tradesman]

Can you post your BIOS settings

[grampabob]

grampabob,

NB Frequency 2400MHz, CPU-NB Voltage 1.20V, that should give you max performance.

GSKILL TECH

I dont see NB freq in my manual, here's a few settings is it one of these? Not sure about CPU MB either. Here's a few examples and a few options.

processor freq multiplier x9.5 1900mhz x12.0 2400mhz x15.0 3000mhz
HT over voltage 1.25 to 1.385
HT link freq 600 mhz 1000 mhz 2200 mhz
mem clock mode 400 533 667 800 mhz
mem overvoltage 1.5 to 2.050
chipset over voltage

Here's my manual, BIOS DRAM info is page 51
http://charon.bdeb.qc.ca/docs/hardwa..._M4A785T-M.pdf

[Force0321]

Bios settings for 1600 MHZ Gskill

Can you post your BIOS settings

Dram freq to 1600Mhz,CPU/NB freq to 2400


CPU/NB voltage( which one do I use?)
I changed the CPU/NB manual voltage last time to 1.25V (+10 OVER STOCK)


Ram timings


Maybe I'm missing something on the CPU/NB voltage?

Dram voltage was at 1.50 stock.

If I just use 2 of the sticks (2x4) everything is perfect. Prime gives no errors on blend, and It shows the memory running at 1600Mhz. I have swapped from dimm slot to dimm slot , same.
It's when I put all 4, 4 gig sticks in where it doesn't work. I have tested all of the sticks and 2 at a time they work perfect at 1600Mhz.

[joobie]

i did everything in method 1 except setting my dram to 1.5v because it seems lik its already in 1.5v in auto. i just left it in auto cuz if i set it to manual the bios warn me of my system not in optimal form. and it seems lik auto already have my dram at 1.51v

buttttt.....when i use cpu-z to look at my memory it says this:
dram freq - 800mhz
fsb:dram - 3:10
CL - 9
tRCD - 9
tRP - 9
tRAS - 24
tRC - 39
CR - 2T

now my question is shouldnt my dram freq be 1600mhz? or am i missing something? is that normal?

[Intelguy]

It is showing the actual frequency of the RAM, 800, since it is Double Data Rate (DDR) you take the frequency times 2, 800 x 2 = 1600. You are right on the proper specification.

[Force0321]

Bump for some help.
Still need to figure out what settings I need to get this Ram to run at 1600Mhz !

See above posted Bios settings.

[RamJam]

Try with memory voltage at 1.56 and raise CPU/NB manaul voltge to 1.25

[GSKILL TECH]

DRAM Voltage 1.50V

CPU/NB Manual Voltage 1.20V

In timings, Write Recovery Time should be 12.

Thank you
GSKILL TECH

[Force0321]

Try with memory voltage at 1.56 and raise CPU/NB manaul voltge to 1.25

Blue screened right away in Prime 95 with those settings.

[Force0321]

DRAM Voltage 1.50V

CPU/NB Manual Voltage 1.20V

In timings, Write Recovery Time should be 12.

Thank you
GSKILL TECH

Prime failed right away with the above settings.

Dunno what else to try.

Gonna just leave it set at 1333MHZ for now.

[GSKILL TECH]

Did you test one at a time to see if one may be bad causing problems?

Thank you
GSKILL TECH

[Force0321]

Did you test one at a time to see if one may be bad causing problems?

Thank you
GSKILL TECH

No.

I tested 2 at a time. Works fine. I swapped the sticks to different dimm slots. Still works fine. It's only when I try to run all 4 , 4 gig sticks that I have the problem.

[GSKILL TECH]

It would appear to be a settings problem then.

For DDR3-1333, you can lower timings, that can make up for some performance loss in frequency.

Thank you
GSKILL TECH