GA-P55A-UD3R with OCZ unstable help ...

[ibosch]

Hello,

I have 2 x OCZ3G16002G ( 8-8-8-24 1.7 v. CL8  ).I cant overclock the system for 1600 mhz.I changed :

Performans Enchant: Standart
Ram timing voltage  8-8-8-24 Qpi voltage : 1.21v from to 1.35v  dram voltage 1.7 v . Trfc : 88   Command rate tried 1t, 2t
BCLK : 160  SPD : X10  Cpu : tried 2.56 - 2.72 ghz - Raise the Vcro voltage.

When the windows starting screen  system freezing. Keyboard, Mouse and Cpu`s  lamb closed suddenly, i had to reset the machine.
   
   I tried the  my friend`s rams.(OCZ3G1600LV4GK 1.64 v 8-8-8-24 ). It is the same thing
 
  So I setted bios, Qpi Voltage : 1.21v from to 1.35 v Dram Voltage : 1.50 from to 1.64v. 7-7-7-20, 8-8-8-24 1333 mhz. Windows can start. But 4-5 hours later or 1-2 hours ( it is changing)  later Blue screen or System freezing, Keyboard, Mouse and Cpu`s  lamb closed suddenly, i had to reset the machine.
   
   I tried the my friend`s rams for 1333 mhz.(OCZ3G1600LV4GK 1.64 v 8-8-8-24 ). It is the same thing
 
   I booted Memtest and i have 0 error each ram.

   I tested 2 gb single each slot.Stable but 1-2 days later Keyboard,Mouse and Cpu`s lambs closed and  system Frozen suddenly.I had no blue screen with 2gb just freezing.
   My friend also have same problem.He just bought it. His mobo is Gigabyte P55A-UD3.

Note: I uptaded bios ( F13 ). My system is : i5 750 2.66 ghz, Ati 5850 Toxic Sapphire 256 bit 1 gb, 2 x OCZ3G16002G ram and 750 watt Corsair Psu Windows 7 Ultimate 64 bit.
   I had 500 watt OCZ psu, bought a new psu 750watt, changed ati driver 9-10 times,formatted many times till today but doesnt work.Please help , i will flip out...

[Dark Mantis]

You say you ran Memtest but did you do the test thoroughly with just one module at a time and for ten loops each ?

You will also need to set the voltage to 1.66v probably which will translate to about 1.64v real.

Have you checked for bent pins in the CPU socket ?

[ibosch]

Yes, I tested like 1 hour till the %100 and 0 error each ram each slots.
I tried 1,64 1,66 1,68 v. doesnt work.
But i didin`t check Bent pins in the CPU socket. How can i check it ?

[Dark Mantis]

1 hour isn't fully tested by any means. You need to run 10 full cycles/loops to be sure. Often the fault wont show up until 5 or 7.

It would be worth checking for bent pins on the CPU socket also.


Take all the usual anti-static precautions.

Very carefully remove the heatsink and fan. Probably a slight twisting motion is best to release the two as the thermal paste can act like a glue.

Once off remove the CPU taking extreme care both physically and electrically(static) and place somewhere safe.

Make sure that the lighting is very good and even.

Now scrutinise the socket for any pins that are out of alignment, even slightly.
If in any doubt whatsoever take a couple of macro (close up) photos of the socket and post them on here for us to check.

Also look at the bottom of the CPU at the lands (little copper circles) and make sure that there is a mark in each somewhere near the centre.
If there are any missing marks or any of the pins are obviously bent then that is your problem.

Before refitting the CPU clean off all residue of the old thermal paste and the same on the heatsink and then apply a small amount (about the size of a grain of rice) to the centre of the CPU once it is inserted in the socket.

[ibosch]

Hmm I guess i couldnt it .Anyway i tried everthing.I will buy new ram.But i am scaring for appering one more compatible issue or problem.I found some rams.Could you tell me Which is the Most compatible and best for my motherboard ( GA P55A - UD3R ).


http://www.gskill.com/products.php?index=223
http://www.ec.kingston.com/ecom/configurator_new/PartsInfo.asp?root=&LinkBack=&ktcpartno=KHX1333C7AD3K2/4G
http://www.ec.kingston.com/ecom/configurator_new/partsinfo.asp?ktcpartno=KHX1333C7D3K2/4GX&promo=hx2shp

I think G.skill.What is your advice

[Dark Mantis]

So what were the pins like on your CPU socket ?

For the memory it is purely personal choice. As long as the motherboard appears on the manufacturers QVL (which I checked with the GSkill ones) then they should be fine. I uasually use Corsair, Mushkin or Crucial myself.