Memory Voltage

[ilysaml]

recently i bought and installed OCZ Platinum OCZ3P1333LV4GK dual kit memory modules, i installed it and it was shown on the BIOS that it's 1066 not 1333... after a hard search i found that it's because it's a standard default fail-safe setting
memory modules on my MOBO gigabyt'es 890fxa-ud5 is designed to take voltage of 1.5V... it's said that No Problem with that and i have to set it manually to run at 1333 and set timings and voltages as well, i set everything right but when i try to set it to 1.65 V PC won't boot up
but it's just working on 1.5V
Note: i could make it working on 1.65V before BIOS update, after BIOS update... no signal on screen when raising voltage to 1.65V
any recommendations ?

 

[jaquith]

Then it sounds like a Conflict, try MSCONFIG Diagnostic + MS Services; if the problem disappears then you know you have a conflict.

Otherwise, take another look at the Event Manager and ONLY look at the 'Critical' errors; obviously you have some listed.

{image for others reading this post}:

 

[ilysaml]

critical errors shows system rebooted without a clean shutting down ( kernel power ) i now trying to open the minidump files to diagnose and report the problems

 

[ilysaml]

well, i succeeded to run 1 stick on 1.65V and the specific timings, but the 2 sticks together won't work on 1.65V

 

[jaquith]

Then to pull this full circle, exchange you RAM; look at these -> http://www.corsair.com/memory-3/amd-memory-solutions/phenom-ii.html {I really like the Dominator series}.

In particular the CMP4GX3M2B1600C8 -> http://www.corsair.com/dominator-with-dhx-pro-connector-4gb-dual-channel-1-5v-ddr3-memory-kit-cmp4gx3m2b1600c8.html
$80 http://www.newegg.com/Product/Product.aspx?Item=N82E16820145303

footnote: You need either the 4 or 6 core Phenom II, same as the OCZ's that you have now.

 

[ilysaml]

yea it sounds to be good, good voltage as well but i'm not sure to find that specific model with that specific part number, and i'm not sure if i will exchange my RAM, anyway i will wait and see if pc crashes again with the one stick and tell you guys the results

 

[jaquith]

Where & When did you buy it?

 

[ilysaml]

Where & When did you buy it?

23/1, i'm from Egypt

 

[jaquith]

Oh boy you're having loads of fun!!! I thought your internet was down?

More than likely, your RAM running at SPD 1066 (lower CAS) vs 1333 (higher CAS) probably is performing almost equally.

Try Super PI -> http://www.super-computing.org/ or http://virgilioborges.com.br/hyperpi/

 

[ilysaml]

yea it was, we are having some problems these days..... )))))
when i installed it Mobo read it 1066 i searched internet and found out that it was a fail safe booting cuz it ran on 1.5V
what was strange that cpu-z SPD tab read memory pc38500 when i was running it @ 1333 or even 1066
what is that prog, i don't know what u r aiming at

 

[jaquith]

I'm in the USA, and I feel we need to stay out of your politics; the grass only seems greener on the other side of the fence - but often it has more weeds.

Huh 38500/8 = 4813 MHz??!! unless you mean 3850/8 = 481 MHz..

I mean running the RAM in it's 'default' speed vs at 1333 MHz is probably going to perform almost identically.

In this example of 1600 MHz look at the different JEDEC frequencies and CAS, as the Frequency increases the CAS goes up {slowing the RAM}; The 'NET' gains - loss differences nearly net you the same 'performance'. Therefore, a Bench Test like Super PI will show you conclusively if there's any advantages to run at 1333 MHz.

 

[ilysaml]

I'm in the USA, and I feel we need to stay out of your politics; the grass only seems greener on the other side of the fence - but often it has more weeds.

Huh 38500/8 = 4813 MHz??!! unless you mean 3850/8 = 481 MHz..

I mean running the RAM in it's 'default' speed vs at 1333 MHz is probably going to perform almost identically.

In this example of 1600 MHz look at the different JEDEC frequencies and CAS, as the Frequency increases the CAS goes up {slowing the RAM}; The 'NET' gains - loss differences nearly net you the same 'performance'. Therefore, a Bench Test like Super PI will show you conclusively if there's any advantages to run at 1333 MHz.
http://www.cpuid.com/medias/images/en/softwares-cpuz-05.jpg

sorry i meant PC3-8500 (533)
you said it yourself, "WE NEED TO STAY AWAY OF YOUR POLITICS", and i hope so )
the problem is not the performance differences between 1066 or 1333 or even 1600 , the problem is that i need to determine why this happening.... is my RAM good or not ?.... if i buy another RAM will i find problems or not ? i just need everything to be okay and going right as it should be
I'm not expert on PC hardware and software like you people so I'm always looking for your help

 

[jaquith]

As I mentioned earlier, you need to have RAM that is compatible with both your CPU and MOBO -> http://www.corsair.com/memory-3/amd-memory-solutions/phenom-ii.html otherwise G.SKILL http://gskill.com/products.php?index=224

Clearly, if you cannot get the current RAM to run stable and without BSOD then it needs to be replaced.

8500/8 = 1063 = 1066 MHz SPD, it is not unusual to have RAM rated above SPD. The problem is you cannot keep stable at Rated.

As a last ditch, Load Optimized {IDE->AHCI if previously set that way} and the only change the DRAM Frequency -> 1333 MHz ; FAILURE EXCHANGE RAM.

In everything, Good Luck!

 

[ilysaml]

ok, finally i swapped it for G.Skill Ripjaws F3-12800CL7D-4GBRM, set voltage to 1.59 and RAM Clock to work with 1600 MHz, till now i had only 1 restart of PC without any BSOD, but i changed the VGA Card for a very lower class one (X300) cuz i'm having issues with my Antec TPQ-850 so i had to work with a lower voltage PSU that support only lower class graphic cards, set timings to 7-8-7-24 1T CR
what is your suggestion people ?

 

[ilysaml]

Best answer selected by ilysaml.