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Ram Overclock issue

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February 20, 2008 8:39:39 PM

my G. Skill ram thats ddr 2 800mhz is rated for 4-4-4-12 operation at 1.9V-2.0V yet when i changed the timings to this and the voltage to everything in between that range it locks up my system.What can i do if anything?
Right now they've been stable at 4-4-4-15 which is faster than what they came as.

More about : ram overclock issue

February 20, 2008 9:28:17 PM

defender0802 said:
my G. Skill ram thats ddr 2 800mhz is rated for 4-4-4-12 operation at 1.9V-2.0V yet when i changed the timings to this and the voltage to everything in between that range it locks up my system.What can i do if anything?
Right now they've been stable at 4-4-4-15 which is faster than what they came as.


Need more specs here...

Are you sure thats what the RAM is rated for?

"Right now they've been stable at 4-4-4-15 which is faster than what they came as."

Whats that mean?
February 20, 2008 10:09:33 PM

pc specs ;

intel core 2 duo e6400

G. Skill DDR2 800 2 x 1GB
http://www.newegg.com/product/product.aspx?Item=N82E168...

Asus 650I motherboard

Evga 7950gt 256mb


That ram from the factory came at i think 4-4-4-30 (really wierd but i think thats what the timings were) or something like that so I changed them to the timings they were rated for and experienced a lot of system hang. and freezing. Also the settings that i had them on after i tried the rated timings also hung a few times.So now i changed them from 4-4-4-12 to 4-5-4-15 with a voltage of 1.8V and so far i havent had problems there.I dont know why i cant get them to rated timings.So to sum it up i went from the rated timings of 4-4-4-12 to 4-4-4-15 and finally to 4-5-4-15 at 1.8V
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February 20, 2008 11:04:02 PM


Its more than likley if you are setting the RAM to rated speed voltage (800mhz 4-4-4-12 at 19.v) and they are causing errors (use memtest86+ bootable to test) then you should probably RMA the sticks. Try using 1 stick at rated speed then the other and see if you get errors on both or not
February 21, 2008 2:06:42 AM

i have no clue how to use memtest 86+ bootable but i will try running both the sticks solo at rated speeds and see if they have errors and luckup.
February 21, 2008 5:06:01 PM

Ok i tested both of them alone and they both run at rated timings of 4-4-4-12 at a voltage of 2.0-2.1V fine with no lockups but obviously some things run slower compared to when there were 2 of them. Any ideas why they lockup at rated timings when both are in at the same time?
February 21, 2008 8:46:01 PM

Did you run memtest with both installed?

how long did you run memtest for? You need to run it for at least an hour
February 21, 2008 9:24:22 PM

i dont know how to or even if i can run memtest.I dont have a working floppy nor do i have a cd burner installed and thats what it says you need.Is there another program that doesnt need to be booted?
February 21, 2008 10:53:51 PM

how do you have windows installed with no floppy or CDrom?

There are other programs you can use but they arent as good and are windows based which is no good if your machine doesnt boot...

I suggest you burn the CD on another machine and boot from it.
February 21, 2008 11:44:35 PM

can you tell me some of those because im not going to be able to download a bootable version of memtest for a while?
a c 86 K Overclocking
February 22, 2008 12:10:34 AM

Buy a floppy. OC'ers always have a floppy, if not installed availible. And not a USB floppy.
!