well, you can always overclock the rams too..
hey, oc is not limited to cpu..


owh btw, if you want a calculator for calculating the ram speed on deviders n diff cpu multiplier, try google for "A64MemFreq"
i have no idea of the formula


here~
 A64MemFreq.zip ( 10.73k ) Number of downloads: 46


This post has been edited by e-jump: Feb 27 2006, 04:14 PM

Thanks for the proggie. It's very useful. But since I'm mental, I went to look for more info on the ratios and although I didn't find the formula either (maybe it's very complicated), I found a very useful chart by someone named Oskar from DFI forums (I think most DFI o/cers would know him) here in Extreme Overclocking 's guide (it's right at the end).

From there, I can deduce that in order to achieve 2400mhz on my Winchester, I will need to use the 3:4 ratio. Now this is going to get confusing...

The 3:4 ratio will set the DDR memory clock to 150mhz. If you refer to the chart, at the CPU multiplier of 9 row, I should get what I'm looking for, a 9:12 ratio.

So 266mhz of HTT (base clock) x 3 / 4 = 199.5 i.e. approximately 200mhz of my DDR400.

BUT... I think my mobo doesn't support this particular setting of 150 (3:4) DRAM frequency

So back to the drawing board

what rams are u using btw?
a tipical ram can be tweaked to run faster at loose timings..
so, the probability to get 220mhz is high, beyond that depends on the ram chips..
all i can suggest, try to find the ram speed limit, and the proc limits saperately..
then only decide what devider to use

I'm using 4 x 256MB Kingston HyperX PC3200 sticks. Here're the timings:



This post has been edited by ZipD: Feb 28 2006, 10:03 AM

Im a newbie in Oc paradise. Can you give me the link where to learn to tweak the ram timing? Im using Corsair VS and I think it limit my venice overclockbility. the highest i can do is at 278*9 ant it is totally not stable.

I try to search some website and i dont really understand...too complicated i think...hehhee...

Other website's method, and out method is just the same. You're just being too lazy.

hi,
i'm also new to OC. check out my OC'ed ram timing. from 166mhz to 222mhz with even tighter timing...

btw, my cpu temp after an hour of prime95 is 62C . idle is 42C. need a new HSF?
thinkin of acquire one zalman fan but afraid it wont fit into my casing


Attached thumbnail(s)

Pros, pls help me here. I got a64 eng sample & 2 stick of cheapo apacer 512M ram. One of the stick is pc2700 and another is pc3200.
Here's the pic from cpuz:




I can't get the ram run in dual channel (mobo beep)
If i wanna get my proc running in 2.4ghz, do i just set the multiplier to 12 (up the voltage if required) without applying the mem divider coz i leave HTT @200?

try looking for temp readings from other users of your same board
it *might* be over reporting the temps

Wow, that's weird
have u tried with a different proc?
maybe the ES' mem controller a little screwed up or something

yes u can just up the multi to 12X and leave the HTT
that way u wont be overclocking your rams

So far only got ES... but i suspect is either the mobo or ram itself sux that cannot run 1T
Anyway, changed to x12 with 1.4v vcore....prime test now (while surfing)
Temperature about 53 degree max

you found the answer itself

most probably the 2700 and 3200 both have different chipsets and compatibility issue arise when running dual channel

I got a weird problem. Everytime i restart the pc(using windows restart), the mobo won't boot. I have to hold the power button for long time to power off the whole system, then on back... everything runs fine.
I tried changing vcore from 1.4 to 1.5 also same. But the system can run prime for more than 4 hours with 2.4ghz... any idea what's lacking?

I wonder when does this happen?
happen recently or since u bought the board(I assume brand new)?

Is it just windows restart? How about CTRL + ALT + DEL at boot up? and while existing the bios option.

Well, board is brand new (dfi nf4 infinity). I actually just started using it few days ago. It happend when windows restart and when it fail to post, even if you press the reset button also no help. Need to power off entire cpu and on back only can solve.
Let say when i off power and on back, then go straight into bios and exit bios... it sometime also won't post. Sometime it says something like cpu goto safemode thingy....

It happen to my Ai7 b4, guess how I solve it?

RMA

Hmm, if i use original multiplier setting (x10)... it won't happend. Like that also need rma?

try reformatting your machine
my guess is your windows is screwed up due to failed ocing previously

in ur case, its quite difficult to identify, coz u r using ES, where it may and may not behave like other procs on the shelves
1st thing to do, try to get a hold of identical rams to test the dual channel

and mobo bios dont officially support ES..
so even u RMA is n get a repaired mobo, it may not solve ur problem

well then... i guess i gotta try maintain the default multiplier and up the htt instead. It gonna be pain since i dun have much info of apacer ram if wanna put divider on it coz there're so many values need to fill for the ram settings.

Just wanna ask sumthin'

I owned a typical KVR but can overclock nearly 270Mhz...



I want to add 2 more KVR wif Hynix d43 chipset..

Could i reach 270Mhz when i do so?