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Asus P5K Deluxe RAM problem

jiiins2
jiiins2 asked
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Last Modified: 2013-11-10
Hello,

I have an Asus P5K Deluxe mobo with two 1Gb DDR2 Kingston RAM sticks. Until last night everything was pretty much fine, but then suddently Win XP froze while I was writing an e-mail (outlook was the only app running) and I had to turn off the PC by keeping the power button pressed. After that the system wouldn't start, not even reaching the initial BIOS stuff and not even making the intial "beep". I tried a couple of times with no success.
This morning I woke up and tried again and I got to the POST messages, where it said that the overclocking settings were causing problems (I don't remember the exact message). I never overclocked this PC and all setting in BIOS are on "Auto" or "Default".
After that one time, again the system refused to even get to the intial "beep". So I decided to try to remove one of the RAM sticks and voila', the system started perfectly. To verify that the stick was defective, I tried to put it back in and take the other one out, and of course the system started up perfectly again... I tried to put them both back in together and the system won't start.
In summary: the system starts up with either one of the ram sticks but not with both together. Funny thing is that it used to run perfectly until last night.

How can I fix this?

Thanks,
J
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Top Expert 2007

Commented:
Which slots are you using when both are used
Did you try a single ram module in each slot as one of the slots may be the issue.
Are you setting the memory up as single channel or dual channel.
For dual channel they go in the 2 yellow slots. Single channel would be used if ONE ram module is used in a yellow slot.
Seems like you may be having issues with the dual channel setup.

Author

Commented:
Thanks for the quick reply. I'm using the two yellow slots in dual channel mode. The funny thing is that it used to work and I didn't change any settings whatsoever.

Commented:
Since system worked before with those 2 mems, I would also run memory test on each stick at the time see if it points out any issue.
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Top Expert 2007

Commented:
Any results

Author

Commented:
The results are fine and problem never happened again... strange!

Thanks for the help
J

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