How do you get into into windows with OCed memory?

[Paalandre]

Hi, I have had this problem on 2 different PC's now, on my first AMD rig, i thought it was because I had some cheap memory and a cheap UD3 motherboard, but now on my 2500k rig when I try to step the memory up I have no chanse in hell to get into windows.

I use a 16gig (4x4) Corsair Vengeance 1600MHz CL-9-9-9-24 1.5V kit on a Maximus IV gene-z motherboard, and I always get the message that my memory is overclocked and have to change my settings when I try to run it at 1866MHz.

I have tried to do insane timings like 13-13-13-33 2T @ 1.5-1.65V just to see if it was a way around it, but to no success.

I didn't find anything about this when I searched for it, so sorry if this has been posted or asked before.

 

[kilobravo]

You could try 9-10-9-27 @ 1.6-1.65v at 1866mhz.Vengeance rams isnt the best to oc.Maybe SA(system agent) voltage need a little bump,but be carefull with that or it will kill the cpu,1.050v SA was the max i have used in benchmarks.

 

[Paalandre]

In my BIOS it says:

VCCSA/IO Voltage 1.111V Auto

The description on it says "System Agent (memory controller, DMI, PCIe controller) power supple.

Is that the correct one? if so should I turn it down to 1.050V?

Sorry, but I don't have much experience with OCing memory :/

 

[kilobravo]

Yes that is the correct one,Asus has named it VCCSA and gigabyte just use SA.

You could try with a fixed voltage,try 1.000v to start with.1.111v is a little more higher than my z68x-ud7.At auto i have 0.925v at 1600-2133mhz.Its only when i have a high oc(5.0ghz+) at 2133mhz ram i need to raise SA voltage or i try to tighten timings.1.2v will degrade cpu very fast,but im thinking 1.125v would be max SA voltage i would use,and only for benchmarks.

 

[Paalandre]

Almost like Im giving up on this 1866 shit, I have tried everything I can think off so far.

Im starting to think its like my old AMD rig, where I could run memtest for 8+ hours without any errors, and when I tried to get into windows I got the same message, and had to fix my setting.

 

[kilobravo]

Im almost certain,if you only use 2 ramsticks in slot 1+3 you could be successful running 1866mhz.Not manny mobo`s support 1600mhz+ on all four ramslots.

 

[S_I_N]

agreed take out 2 sticks and see if it works. What are the rest of your specs?? remember bandwidth is shared all across the board so you might not have the bandwidth to run 4 sticks.

 

[Paalandre]

Asus Maximus IV gene-z

Intel i5-2500k - 4.5GHz @ 1.270V

Corsair Vengeance 16gig (4x4) 1600mhz Cl9-9-9-24 @ 1.5V

GTX 460 1gb stock

Asus exonar HDAV 1.3

Optical disc drive

2x Samsung spinpoint F3 1TB

1x WD black 2TB

AX750 PSU

I need to take off my NH-D14 to get out 2 sticks :/

I will try when I buy a new case, waiting for a TTL review of the shinobi XL. If that turns out to be bad, I will go for an Fractal Design Arc Midi.

 

[SmoulderingCircuits]

How does CL8 run for you with everything else at stock or maybe a small bump in basic DRAM volts?

 

[Paalandre]

Sorry, but I had a problem that my PC was running a little slow while playing, then I noticed I had F@H on auto startup

I will do a test run on CL9 to be 100% sure it works with stock sticks, then I will see how low I can get the latency while running on 1600mhz