Can't install DDR3 dimms on Asus P5KC

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Sasan Fani

Sasan Fani

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Aug 19, 2013
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10,510
Hi,
Tomshardware community is the only place that helped me through hardware issue. So why don't I ask you guys?!

MB: Asus P5KC
CPU: Intel E6750 dual core
current RAM: Kingstone 2gig ddr2 667
hope to install RAM: 8gig(2x4gig) Kingstone HypreX blue 1600
PSU: Green B585 watts (powerful!)

Some expert told me I can install DDR3 1600 bus RAM modules in dual mode on my motherboard. So I decided to get rid of the low speed 2gig 667 Kingstone and get a dual 8gig 1600 Kingstone HyperX blue modules.
So I removed the 2gig ram and installed my fresh dimms and I powered on... My LED blinks only and no regular boot beeps I could hear ! Neither I could enter setup.
I know I installed RAMs in the correct place of motherboard but, I'm not sure about the bios update I've ever done. I think it's still the factory flashed bios.

So, please tell me what I should and could do, to get these brand new fast ddr3 rams work for me.
Thanks in advance ! :)

 
Solution
quilciri
It will run 1600 just fine, 1333mhz support means the RAM will only run up to 1333mhz speed. If you put 1600, 1866, etc, in it, the RAM will run at 1333.

AMD would sure have a disaster on their hands if 1333mhz DDR3 controllers couldn't run 1600 or above sticks at all :D.

It is a rtfm issue, though, you were just off on the section :)

The motherboard only supports up to 4gb of DDR3.

"2.4.2
Memory configurations
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2 /
DDR3 DIMMs into the DIMM sockets"

, and since your mobo has 2 DDR3 sockets that means you can run 2x2gb DDR3.

http://dlcdnet.asus.com/pub/ASUS/mb/socket775/P5K-C/e3155_p5kc.pdf
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Sasan Fani

Sasan Fani

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Aug 19, 2013
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I don't have enough hardware info but,
do you think my CPU doesn't support 1333 fsb and my RAMs just can't work under 1333?

Do you think I need to overclock my CPU?
 
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quilciri

quilciri

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Mar 16, 2012
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It will run 1600 just fine, 1333mhz support means the RAM will only run up to 1333mhz speed. If you put 1600, 1866, etc, in it, the RAM will run at 1333.

AMD would sure have a disaster on their hands if 1333mhz DDR3 controllers couldn't run 1600 or above sticks at all :D.

It is a rtfm issue, though, you were just off on the section :)

The motherboard only supports up to 4gb of DDR3.

"2.4.2
Memory configurations
You may install 256 MB, 512 MB, 1 GB, and 2 GB unbuffered non-ECC DDR2 /
DDR3 DIMMs into the DIMM sockets"

, and since your mobo has 2 DDR3 sockets that means you can run 2x2gb DDR3.

http://dlcdnet.asus.com/pub/ASUS/mb/socket775/P5K-C/e3155_p5kc.pdf
 
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Solution
Sasan Fani

Sasan Fani

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Aug 19, 2013
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10,510


Yes,
for that matter I installed only one 4gig module and got nothing on screen :(
 
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Sasan Fani

Sasan Fani

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Aug 19, 2013
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I assume you mean to remove motherboard battery and put it back after 10 seconds. I did it too
Th system clock was reset but the "nothing screen" happened again
 
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Sasan Fani

Sasan Fani

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Aug 19, 2013
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He said 1600 is maximum ensured that factory guarantees for well functioning, it can work at lower frequencies
 
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quilciri

quilciri

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Mar 16, 2012
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Not sure if you didn't read the entire post, or misread most of it.. Each individual socket can support only up to 2gb. You cannot use the RAM modules you have. You need to buy a pair of 2gb sticks, for a total of 4gb. That's what 2x2gb means.
 
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Sasan Fani

Sasan Fani

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Aug 19, 2013
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10,510


Ok thanks dear quilciri, I was distracted !

 
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G

Gorstak04

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Nov 14, 2013
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Hi everyone,

I have exactly the same problem, with same motherboard, same DDR3 4 GB single module. I experienced blue screens of death on several occasions while DDR3 module was inserted in A1 slot. Upon placing it in the B1 slot it seems to run just fine. I am still placing some stress on the computer to see if the computer will crash again, but so far nothing to report.
Just for the sake of informing you in case you have any comments:
CPU: E8500 Core 2 duo
MoBo: Asus P5KC
RAM: 4 GB single DD3 module (used to be 2 GB DDR2 single module)
GPU: Ati HD 7850 1 GB DDR5

In case the problem persists I will most likely try to replace single module with 2x2 GB DDR3.
 
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