I had to spend hours of forum reading to get some other users timings and finally I built a spreadsheet. In addition, I decided to share my findings.
What I wanted is proved overclocked rams to be found under one thread so that many users will not be furious like me!
Due to cultural differences b/w forums, "proved stability" can mean many different things. Please post here if you are 4+ hours prime stable - 1m or 32m is not sufficient...
Please follow the sequence like you see in the table below. For instance, look at micutzu's settings and post like this:
Especially, dont forget to report bios, vdimm, trfc, tref, (data) drive strength, rpt, and async latency.
Please dont post A64 screenshots (stand alone I mean - if you already give all the detail ur more than welcome to post anything you want)
250mhz is the rated specs for this memory please dont post something less than 250, my aim is to see especially 260+ settings.
New buyers, use Thunda's setting below - should be perfectly fine for 99% of people at 250 Mhz.
1) I will not update the table overnight, but perhaps every 10-14 days.
2) Dont forget to check workbook 2 and 3 (if needed)
1) Please continue to report HZ speeds + any UCCC stats. I can put them into page2.
2) You can report with your NF3 board/expert board/rdx200 board - doesnt matter as long as it is dfi made.
3) If you find a new higher clock, please report in a different post - do not update your original.
4) I am aware that cpu and/or other bios settings (like lord davis posted in post#54) play some role for the speed of your rams - however I have to make some cuts - and for now I am not thinking to expand the information that I am asking in the table. It might change in the future.
5) Important: Please take a look at this info while posting your ram speed:
Originally Posted by Sharp
How to calculate your memory frequency
Memory Frequency = (FSB x (CPU ratio)) / ] ((CPU ratio) x (FSB : DRAM ratio)) [
Ceiling function is shown with ][,
]10.1[ = 11
]10.2[ = 11
]-6.2[ = -6
]-8.9[ = -8
For positive numbers always round up to the nearest whole number.
For negative numbers always round down (its actually still up) to the nearest whole number.
FSB = 290
CPU ratio = 7
DRAM:FSB ratio = 5:6, re-arrange to 6:5 (FSB : DRAM)
Using the formula,
Memory Frequency = (FSB x (CPU ratio)) / ] ((CPU rato) x (FSB : DRAM ratio)) [
Memory Frequency = (290 x (7)) / ] ((7) x (6/5)) [
Work this bit out first
] ((7) x (6/5)) [
6/5 = 1.2
and that becomes
] (7) x (1.2) [
7 x 1.2 = 8.4
Now remember the ceiling function, ][
]8.4[ = 9
Put that back into the main formula
Memory Frequency = (290 x (7)) / 9
Memory Frequency = (290 x 7) / 9
Use 11/12 ratio in calculations rather than 9/10.
Originally Posted by G.Skill Technician in xtremesystems on 02/14/2006
hummm there is a good way to test it!
1. lower your CPU to 250 * 7 or 8 with the setting you have
2. start sp2004 large test or prime95 large test or memtest windows version
3. start clockgen
4. using clockgen to increase the FSB 251, 252, 253, until your test show error
5. restart your computer and increase .03v
6. repeate 1 to 4 again, if no big FSB increases, go to next step 7
7. lower about 5 FSB and do the full tests
this is my ultimate max memory overclock theory testing!
*** Please note that playing with overclocking applications under windows may crash your system easily - bewarned.
last update: March 27, 2006 2.16 PM (eastern US)
REMINDER (again): Please submit your settings as a list not a screen shot (I used to decipher screenshots in the beginning but no time for it anymore, please understand...)
REMINDER (again): Just to be clear, use "REAL RAM" calculation formula while posting.
EXPECTATIONS from this RAM (and overclocking in general): PLease take some time and read Praz's post (post# 270) - VERY well said - thanks...