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Asus P7P55D LE + F3-12800CL9D-4GBRL
Hello !
As I have a little bit different mobo and memory than gpb500 in his orginal post so I decided to start another thread so maybe other users of Asus P7P55D LE can join in.
I've the same problems as original poster in this thread ( http://www.gskill.us/forum/showthread.php?t=2479 ) . Cold boot causes memory errors in Memtest 4.0 and general system instability. I have :
Intel i5 750
Asus P7P55 LE with 0605 bios
2 x 2 gb G.Skill F3-12800CL9D-4GBRL
Ocz 600w power supply
GTX 260 (216)
1 x sata hdd
2x dvd drive
Antec 300 case
Everything is running on stock setting, no overclocking.
Every morning when I boot up the computer I've general instability. When I check memory with memtest 4.0 I get 8 to 30 errors in each pass on test nr 5. The same situation as original poster! What is going on ?
I've tried every setting ranging from 1060 MHz bus to 1600 MHz and timings from 7-7-7-21 to even 10-10-10-30 and changing these parameters has little effect on errors ( while still on power ). I've also tried changing command rate from 1T to 2T , no result.
I get 4 errors in each memtest pass @ 1060 MHz 7-7-7-21 to 30-40 @ 1600 MHz 9-9-9-24. Errors always appear in second half of the ram ( from 2gb to 4 gb ).
I didn't increase my voltage from 1.5V as I don't know if it's voiding warranty ( I know that 1.65V is max for i5 )
UPDATE :
Yesterday after re seating memory in socket I was able to run memtest and dreaded test nr 5 for almost 100 passes without single error. Also full memtest scan went without single error. Then I played games for almost 5 hours without single lockup, ctd, artifact etc.
Today I boot up computer ( I've changed nothing after I finished gaming ) start memtest and I got almost 500 errors. I turned off power, re-seated just one stick and problems are gone. Memtest finished one full pass and is showing no errors ( at least for now, I'm writing this post from my laptop ).
I'm running of 1333 mhz bus and 1.5 voltage (set manually) . I followed G.Skill advice and tested both sticks in single channel ? no problems. Also G.skill support advised to set all ram parameters by hand so I did that.
From bios I have noted down settings that seems to work after re seating memory, these numbers are :
7-7-7-24-4-74-10-7-20
1N-40-41
7-7-16-8-8-8-7-6-4-7-7-4
In first row of there are 9 numbers and 10 option to choose from. The nr 10 option is called ?back to back cas delay ? and it not described in Asus's manual I have so I left it on auto.
Also I can't select DRAM Ref cycle to 74 co I choose 72 as it is closest to value of 74 ( next option selection is 82 )
In second row I can only set command rate as other options offer only ?advance? or delay not just straight numbers. So I left them on auto to
In third row I was able to set all parameters manually.
Computer is working stable now but I wonder what happens during next cold boot. I'll keep you informed. I hope that manual settings will help as it is my last idea how to fix this problem other that returning these sticks.
Regards
Ferguson
As I have a little bit different mobo and memory than gpb500 in his orginal post so I decided to start another thread so maybe other users of Asus P7P55D LE can join in.
I've the same problems as original poster in this thread ( http://www.gskill.us/forum/showthread.php?t=2479 ) . Cold boot causes memory errors in Memtest 4.0 and general system instability. I have :
Intel i5 750
Asus P7P55 LE with 0605 bios
2 x 2 gb G.Skill F3-12800CL9D-4GBRL
Ocz 600w power supply
GTX 260 (216)
1 x sata hdd
2x dvd drive
Antec 300 case
Everything is running on stock setting, no overclocking.
Every morning when I boot up the computer I've general instability. When I check memory with memtest 4.0 I get 8 to 30 errors in each pass on test nr 5. The same situation as original poster! What is going on ?
I've tried every setting ranging from 1060 MHz bus to 1600 MHz and timings from 7-7-7-21 to even 10-10-10-30 and changing these parameters has little effect on errors ( while still on power ). I've also tried changing command rate from 1T to 2T , no result.
I get 4 errors in each memtest pass @ 1060 MHz 7-7-7-21 to 30-40 @ 1600 MHz 9-9-9-24. Errors always appear in second half of the ram ( from 2gb to 4 gb ).
I didn't increase my voltage from 1.5V as I don't know if it's voiding warranty ( I know that 1.65V is max for i5 )
UPDATE :
Yesterday after re seating memory in socket I was able to run memtest and dreaded test nr 5 for almost 100 passes without single error. Also full memtest scan went without single error. Then I played games for almost 5 hours without single lockup, ctd, artifact etc.
Today I boot up computer ( I've changed nothing after I finished gaming ) start memtest and I got almost 500 errors. I turned off power, re-seated just one stick and problems are gone. Memtest finished one full pass and is showing no errors ( at least for now, I'm writing this post from my laptop ).
I'm running of 1333 mhz bus and 1.5 voltage (set manually) . I followed G.Skill advice and tested both sticks in single channel ? no problems. Also G.skill support advised to set all ram parameters by hand so I did that.
From bios I have noted down settings that seems to work after re seating memory, these numbers are :
7-7-7-24-4-74-10-7-20
1N-40-41
7-7-16-8-8-8-7-6-4-7-7-4
In first row of there are 9 numbers and 10 option to choose from. The nr 10 option is called ?back to back cas delay ? and it not described in Asus's manual I have so I left it on auto.
Also I can't select DRAM Ref cycle to 74 co I choose 72 as it is closest to value of 74 ( next option selection is 82 )
In second row I can only set command rate as other options offer only ?advance? or delay not just straight numbers. So I left them on auto to
In third row I was able to set all parameters manually.
Computer is working stable now but I wonder what happens during next cold boot. I'll keep you informed. I hope that manual settings will help as it is my last idea how to fix this problem other that returning these sticks.
Regards
Ferguson
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