DDR3 RAM downclocking ( 1600 to 1333)

LukeWTF · Mar 4, 2014

Hello everyone, i just bought DDR3 1600 mhz ram, but my motherboard (ASUS P7 H55 M-LX) doesnt support it, so i wanted to downclock it to 1333 mhz. will it work? or what other way can i use?
oh sorry i forgot to write about the problem: when i put a new ram my cpu just keeps restarting at the windows icon.
also my motherboard doesnt haev a DRAM frequency menu. even with updated bios

AshyCFC · Mar 4, 2014

Yeah, it should work fine.

It's likely to downclock itself automatically as well so don't worry about it.

smorizio · Mar 4, 2014

in the asus bios if it has intel xmp profile for the ram turn it on and see if the ram reads 1600 speed. the motherboard itself will set the ram to a working default speed. in cpu-z 1333 will show up a 677. ddr 1600 will show up as 800. 1066 is 533.

Tradesman1 · Mar 4, 2014

Mobo supports through 1333, so XMP prob isn't going to be available (XMP is only 1600 and up), try with a single stick and see if you can get to BIOS, in BIOS set DRAM to 9-9-9-27, 1.5 and see if it boots, if so, add other stick

LukeWTF · Mar 4, 2014

ok il try it and post a result later

LukeWTF · Mar 4, 2014

Tradesman1 :

ive gone to the bios like you said but there are more clocks than 4.... mb i dont understand something? can you thoroughly explain this to me pls?

Tradesman1 · Mar 4, 2014

In the Advanced menu under chipset should find the Uncore config, with DRAM freq (set to 1333, and memory remap feature - should be enabled, these are 2x4GB sticks?

LukeWTF · Mar 4, 2014

no , 1 stick 4 gb, old is 2 gb. also i cant find memory frequency in bios, i think it doesnt exists there at all.
and also what is this 9 9 9 27? timings? can you tell me their names? and 1.5 is voltage as i understand... ( sry for being stupid, im not experienced in cpu hardware

LukeWTF · Mar 4, 2014

UPDATE!! i found memory frequency and typed 1333 (remap feature enabled) , also changed timings to 9 9 9 27 ( their names are: DRAM CAS # Latency; DRAM RAS# to CAS# delay; DRAM RAS # PRE Time; DRAM RAS ACT time ) and DRAM Voltage: 1.5.
but pc just freezed on a windows logo.... what can i do now?
mb the problem is in CPU? its i3 540

smorizio · Mar 4, 2014

use cpu-z on each dimm see what the speed and timing are under ram and spd info. if the older dimm is 1066 then your pushing the old dimm to far.

LukeWTF · Mar 4, 2014

smorizio :

no i put only new ram, without old, but pc is just freezing at windows logo

Tradesman1 · Mar 4, 2014

Try going into safe mode with networking, if you can get into that try opening a command prompt as Administrator

Start>All Programs>accessories> then right click on Command Prompt and select Run as administrator > when the window opens type in SFC /SCANNOW this will check for corrupt Win files

LukeWTF · Mar 4, 2014

Tradesman1 :

what if i just install win7 before it, qnd then try everything as you said? win8 is just too problematic

Tradesman1 · Mar 4, 2014

Can give that a try (agree, Win8 can be a pain

)

LukeWTF · Mar 5, 2014

Tradesman1 :

ok, ill just install win7 on old ram and then change ram to new and tryto use the safe mode

LukeWTF · Mar 5, 2014

well.. i installed win7, then put in new ram, changed all parametres like frequency, voltage,and timings... but it keeps restarting at windows logo, safemode also doesnt lauch.
i get blue screen with errors like: pcy.sis-address............ and irql_not_less_or_equal
what can i do now?

Tradesman1 · Mar 5, 2014

SOunding like it doesn't like the particular DRAM, could you borrow other sticks from someone

LukeWTF · Mar 5, 2014

Tradesman1 :

idk what is particaular... new ram is- kingmax flgf65f

DDR3 RAM downclocking ( 1600 to 1333)

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