how to overclock CORSAIR TWIN2X4096-8500C5DF

[clayderine]

i have CORSAIR TWIN2X4096-8500C5DF

and it runs in EPP standard 5-5-5-15-2T, 2.1V values

my question is

how can i increase the performance of my memory

which option should i change

thx b4

[Terbinator]

Well the speed of the RAM is 1066Mhz, you can increase the speed by improving you bus speed - similair to how you overclock your CPU as the RAM speed is a multiplier of the bus speed. For example in your Bios if your using a Core 2 your bus speed may be 333Mhz and if your using 667Mhz RAM then your Bus speed to RAM ratio would be 1:2/CPU:RAM. Rasing your bus speed by X Mhz it will raise your RAM speed the same amount.

You could also change the latency timings which are those 5-5-5-15-2T numbers, however it will be a lot more tricky to get a stable system by changing these to 'tighter' settings such as 4-4-4-12-2T than it would by simply raising the RAM speed, as there are many RAM timing options, depending on your Bios.

You should also note that the 1066Mhz RAM you are using isnt a official DDR2 spec and it uses more voltage to get to that speed than the DDR2 official spec (0.3V more than the reccomended/standard 1.8v). This produces extra heat and thats why the Dominator RAM has those fancy heatspreaders. Trying to squeeze more speed out of your RAM modules may require more voltage and cut results in your RAM modules becoming damaged, in addition tot his i'd be suprised if you will get any reasonable/worthwile gains from overclocking your RAM further as i only managed to get mine up to around 1150Mhz with 2.2v.

Hope this helps.

[clayderine]

So if i change my latency timing to 4-4-4-12-2T

how much performance gain will i get?

coz i really a newbie on overclocking hehehe

oh yeah i also want 2 ask how to change the volt of the memory

which one should i change on the bios

the dram?

thx 4 the answer b4 n plz answer this one too ^^

[Terbinator]

You probably wont notice any real performance difference unless you run something like 3Dmark or Vantage which run synthetic tests. To change the RAM voltage it should be under DRAM - don't go crazy with the over-volting though and maybe you should leave it alone all together if your not that experienced when it comes to overclocking. Have fun !

[clayderine]

do you mean D Ram Voltage Control ?

just change it more ?

does it void the warranty?

if i'm not wrong i think i ever read it somewhere that the voltage is 2.1 volt

and if we increase the voltage over the 2.1 volt it will void the warranty

CMIIW

[Terbinator]

do you mean D Ram Voltage Control ?

just change it more ?

does it void the warranty?

if i'm not wrong i think i ever read it somewhere that the voltage is 2.1 volt

and if we increase the voltage over the 2.1 volt it will void the warranty

CMIIW

Yes it will, as your running it out of specification - and as i mentioned previously these modules are already overclcoked from the standard 1.8 volts. You may be able to change the Mhz and timings ratings still on the stock volatge of 2.1v though so give that a try.

[clayderine]

i have one problem

the bios of my motherboard

DFI LP DK 790FXB-M2RS

only show 16-30 tRAS

do you know why?

and how supposed i show the 1-15 tRAS ?

(anyway when i first run this from the box,, it only show 1-15 instead of 16-30

and the clock of memory is only 800Mhz not 1066)

but after i manually set the clock of the memory 5-5-5-15-2T, 2.1V values 1066Mhz

it's change to 7-7-7-30-2T, 2.1V values 1066 MhZ

so i change it back to 5-5-5-18-2t

should i change it to 5-5-5-16-2t ?

i want to change it to 5-5-5-15-2t

please tell me how

[Yellowbeard]

Based on what you have posted, I'd suggest you contact DFI tech support or visit their forums.