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- Aug 19, 2010
- Messages
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Here's something interesting which i cant quite understand
I have 2x2gb Reaperx PC6400 5-4-4-15 (OCZ2RPX8002G) 2.1v on sticker 2.0v on epp profile evp of 2.2v
the best i can get them to run at the 425 fsb i run at is 5-4-3-12 46 @ 1.8v 5 pass memtest stable
I picked up some Reaper 4-4-4-15 54 2.1v on sticker 2.2v on epp 2.25v evp on ebay and it came today
My GA EP45-DS3R really didnt get on with both sets in and failed to boot 3 times
then came up at 200fsb the 4th
and was trying to set some crazy timings via the spd profile for 200mhz on the 400mhz setup
in the end i pulled my Reaperx and just booted with the reaper 4-4-4 so i could write down its full
epp timings to set manually
it was
4-4-4-15
tRRD 3
tWTR 3
tWR 6
tRFC 54
tRTP 3
CMD 0
@ 2.2v
while i was there i decided to test if it could do 425 bus at 5-4-3-12 46
the same as my other ram
5-4-3-12-46 @ 1.8v = no boot
5-4-3-12-46 @ 2.0v = fail memtest
5-4-3-12-46 @ 2.2v = fail memtest
5-4-4-12-46 @ 1.8v = no boot
5-4-4-12-46 @ 1.9v = fail
5-4-4-12-46 @ 2.0v = 1 Pass didnt test further
I fitted my reaperx 5-4-4-15 back in so all 4 sticks
and had the timings at
5-4-4-12-46 @ 2.0v
after finding this program
I decided to flash the reaperx spd data into the reapers
to stop the bios getting confused on what data to use unless i set it manually
but strangley it has not only fixed the bios confusion which i was expecting
it has also made the ram run far better and at lower voltages
it has just passed its first pass at 5-4-3-12-46 @ 1.8v with all 8gb in
and it wouldnt even post at that voltage before with just the 4gb reaper's
im at a loss to explain this
i will post the spd dumps later as they are on the usb stick that its memtesting off
and i want to give it a few passes
I have 2x2gb Reaperx PC6400 5-4-4-15 (OCZ2RPX8002G) 2.1v on sticker 2.0v on epp profile evp of 2.2v
the best i can get them to run at the 425 fsb i run at is 5-4-3-12 46 @ 1.8v 5 pass memtest stable
I picked up some Reaper 4-4-4-15 54 2.1v on sticker 2.2v on epp 2.25v evp on ebay and it came today
My GA EP45-DS3R really didnt get on with both sets in and failed to boot 3 times
then came up at 200fsb the 4th
and was trying to set some crazy timings via the spd profile for 200mhz on the 400mhz setup
in the end i pulled my Reaperx and just booted with the reaper 4-4-4 so i could write down its full
epp timings to set manually
it was
4-4-4-15
tRRD 3
tWTR 3
tWR 6
tRFC 54
tRTP 3
CMD 0
@ 2.2v
while i was there i decided to test if it could do 425 bus at 5-4-3-12 46
the same as my other ram
5-4-3-12-46 @ 1.8v = no boot
5-4-3-12-46 @ 2.0v = fail memtest
5-4-3-12-46 @ 2.2v = fail memtest
5-4-4-12-46 @ 1.8v = no boot
5-4-4-12-46 @ 1.9v = fail
5-4-4-12-46 @ 2.0v = 1 Pass didnt test further
I fitted my reaperx 5-4-4-15 back in so all 4 sticks
and had the timings at
5-4-4-12-46 @ 2.0v
after finding this program
I decided to flash the reaperx spd data into the reapers
to stop the bios getting confused on what data to use unless i set it manually
but strangley it has not only fixed the bios confusion which i was expecting
it has also made the ram run far better and at lower voltages
it has just passed its first pass at 5-4-3-12-46 @ 1.8v with all 8gb in
and it wouldnt even post at that voltage before with just the 4gb reaper's
im at a loss to explain this
i will post the spd dumps later as they are on the usb stick that its memtesting off
and i want to give it a few passes
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