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well im in the process of RMA of some dead GSkill PC8000 that i bought, so i got bored and tightened the timings on my current ram: 2X1Gb Corsair PC6400 800Mhz.
check this out
http://farm4.static.flickr.com/3304/...68bd763b_o.png
good, bad, average? what can i do to improve. Its all Prime95 stable 2hours. CPU was Prime95 overclocked stable 8hrs before i touched the ram.
No offence mate but you can buy ram that has stock speed/timings 800MHz 4-4-4-10. If you get 3-3-3-8 from this at 800MHz or manage to get 5-5-5-15 at over 1100MHz some people may be impressed. :D
i see, man thanks for the info, i just thought getting 8gb read with 800mhz was pretty kl lol
my crucial ballistix runs 555mhz (1110mhz) at 4-4-4-12 @ 2.2v
this is at 1.94V
you can hit 2.1v and be 99% safe. Decent cooling and 2.2v is also quite safe.
Try maxing your clocks, then lowering your timings
tbh i have had no luck maxing clocks the next ratio puts it at 961mhz and i know that is probably unattainable. so i just went straight for the clocks. lol. ill try increase voltage and see if i can beat the SPD as some sub timings are above SPD otherwise the system crashes on apply
961 should be easy. I'm running 1110 4-4-4-12 on 800mhz rated RAM
o.k you have the right tools downloaded and its stable so lets push it harder
we all have to had somewere, its all about having fun and learning.
Acid
:up: exactlyQuote:
Originally Posted by -Acid-
Not a great OC yet, but nobody jumped straight into high clocks
yeh it was more fun than OC CPU because theres little voltage changes and Memset can do everything in windows, so hat was cool. i will definatly try the 961mhz from seeing your results. i mean it would be incredible to reach 1000Mhz then i could run the GSkills along side when they arrive. eligray are you using the D9's?
sorry, not sure and gotta go. If you care enough to find out, they're crucial ballistix 4-4-4-12 2.0v 800mhz 2 x 2gb
ya man your well on your way :up:
keep clocken them and see what you get
XS members dont stop till you see the magical blue smoke :D
I don't stop until I see flames! :DQuote:
Originally Posted by HDCHOPPER
I got some cheap A-Data to 850MHz, 4-4-4-12 timings @ 1.95V.
Go for 961MHz!
i put the sub timings back to auto, stuck it on 1003Mhz put it to 5-5-5-15, PL10 and primeing now. had to relax a few sub timings to stop it failing int he first test, but 3 tests have passed so far :) next to tighten the timings.
http://farm4.static.flickr.com/3391/...958a8707_o.png
so far stable 20mins, still going
Keep pushing, my TX's stock speed is 400MHz C3 :p:
ive been running PRime95 for 30minutes, and just opened the computer to feel up the rams lol, they are just warm to touch, Vdimm is at 2.06v last i remember, may i say the ambient is about 20 degrees atm, england cant believe its snowing, yesterday i had CPU idleing at 27 degrees, usually its at 32 degrees ahaha. i have just tightened to 5-5-5-14 and tightened all the sub timings back to bios auto, P5Q Deluxe is very smart at this, just TRFC loosened from 42 to 43 and PL down to 9 from 10, got 8275mb read now.
Been priming that for 10 minutes.
that was stable, next test:
http://farm4.static.flickr.com/3456/...fc0afb33_o.png
im starting to reach deadends, what could i do next to maximise the OC. Also im at 2.1Vdimm now, i might reduce it later, but is it ok to run at that voltage, usually i had 1.9V. I use my computer to do gerneral things like browsing and play games.
Not bad, but nothing special either to be honest. Yesterday I myself discovered that my Cellshock sticks do 600MHz CL4, and that was at 2.08V with 4x1GB installed on a Maximus II Formula. :)
Also, I don't think I'd go past 2.1V with your RAM, since the chips probably aren't Microns and won't scale beyond that (they'd rather deteriorate).
nice going so far !
ya 2.1 should be alright but let other chime in on that
but for shure keep them cool ... it's a must for good overclocken
600MHz C4 2.08v? Are you sure? You must have the best RAM ever made.Quote:
Originally Posted by Mean Machine
just got it to Performance Level 7 which has given a bit more mb/s. i cant seem to reduce any more timings otherwise it crashes or fails Prime Blend. Also passed 1 hour Memtest, one instance per core.
you doing very well keep at it :up:
You made me play with my ram now !!!!!
I'm sure it was 600MHz 2.08V at least, 4x1GB. Pretty sure in CAS4 as well, I'll just have to test the sticks out some more tomorrow or so. Hopefully they scale decently with voltage as well.Quote:
Originally Posted by Oj101
Your mobo is very good too if it is allowing cas 4 @600+mhz with 4 sticks 2.08v
Does your ram voltage droop with 4 sticks ?
What mobo/bios setting are you using ?
Here is my max so far with 4x1 sticks i,m using 2.35v which droops to 2.30 ish with 4 sticks I,m gonna keep at it !!
http://img.photobucket.com/albums/v1...tablepi1mb.jpg
Edit the pi run is only for testing stability (will do a set up run once i find my max frequency)
mean machine,no offense but i find that hard to believe,but if by chance you can reproduce this with proof then you sir will have my honest congratulations,you would then be in posession of one awesome kit of ram.
you inspired me to do some OC'in last night :p
http://forums.extremeoverclocking.co...d.php?t=313674
2.504v what?
Very nice eligray for 2x2 sticks 2.5v EEEk...... hope a big fan was used
My friend has some flex II xlc will have to erm test them for him to see if i can better that :up:
he only got them for the bling factor so they are sadly not getting used right !!!!!! ( hate hardware not getting used )
I got 1 magic 4! lol heres the timings and bench:
http://farm4.static.flickr.com/3420/...3a1c32cc_o.png
And i seem to get better benches in Windows 7 64bit than Vista 32bit....
would you mind typing out results? External pics don't load from schoolQuote:
Originally Posted by jasjeet
i wasnt able to stabilise it, but it was 5-5-4-12 500Mhz DDR
Read: 8724mb, Write:7278mb, Copy: 8021mb, 58.3ns latency.
memtest few errors around 50% mark, i tried to loosen some settings but couldnt get it stable. ill try again later. back to the 5-5-5-12 atm
Jasjeet, win7 beta helped my clocks too i think because i could not boot 4ghz on vista for my life, and now it does it with ease on the beta. i dont know waht it is. all i know is that boot up is a lot less stressful which is really nice. i think i'll see what i can max my black pi out @ 4-4-4-12 tonight. i got it up to 487 so far. i was running it 1:1 with my FSB for a while.
-Acid- , what memory sticks and mobo are yours?
Very nice :up:
My best so far is 4x1G GSkill GBPK 610 MHz 5-5-5-15 4hours prime stable at 2.05V on DFI LP DK P35 T2RS
I might do some RAM overclocking tonight as well :)
Quote:
Originally Posted by gondezz
Mobo is a Gigabyte X38 Ds6 bios 9a
Ram is OCZ Flex XLC 9200 2.3v
still playing with settings atm to find the sweet spot :up:
Are they Micron?
Yeah, tweaking memory is fun, although sometimes it frustrating.
Some divider is better for memory OCing.
My result is using divider 1:2 (200/800)
i think im all maxed out on this frequency (500mhz), i cant stabilise a magic 4 but im going to try reduce the voltage as much as possible now, at 2.08v today, will see how looow it can gooo lol
i know this is kind of off topic, but can someone explain the fsb strap to me? i use the normal strap (which i think is 266mhz for me) and i dont know if using a different strap would yeild better performance
See if you can get Performace Level (tRD) lower, that's the primo timing in terms of memory subsystem performance, it actually affects the MCH not the RAM itself. Just got a DFI X48 board and playing with this myself now both with 4x1GB double sided Tracer 800 and 2x1GB Transcend Axe Ram 1200. Good reading at Anandtech here and here .
xdrift0rx that goes for you too re. your strap question.
Got so far Read:8110, Write:8752, 8020Copy and 62.7ns, on my crappy 800 4-4-4-12 A-Data DDR2 what wont oc at all.
830Mhz 4-4-4-12, 2.1v wont go furter, instant bsod at 850 and at 840 couple of memtest errors.
5-5-5-15 2.1v max is around 890.
I think ill put some mad volts to this ram and see what they do then :)
Mine OC fine...both the Extreme and Normal versions. I have two sets in right now 2x1GB Extremes and 2x512MB normal and they do 1000MHz 5-5-5-18 at 2.1V.Quote:
Originally Posted by rintamarotta
i managed to get 510mhz out of my black pi @ 4-4-4-10 2T. i didnt cap it though because it would crash before i could :/ decent speeds for a 4gb kit???
my timings are huge at the moment ;), corrupt MFT = hours of trying to recover!!!!!!!!!!!!!!!! :shakes::mad:
files are there, but have to do a lengthy process of getting them back, its worse than a accident format, dam it!
on ther other hand my GSkills are on their way back from RMA lol :)
I always have a benching os on another old eide hard drive as there is no risk of damaging you os install and computer boots faster with out having to load up sata raid stuff ect
Also you can make an image of it 4- 10 gb and just reimage the drive if worse case happens
As for what type my Ram is gondezz i,m not sure, i think its pretty high binned micron D9's ( i,m sure one of the OCZ rep will know)but I havent stripped them to check (its nice to be able to RMA them should worst ever happen).
Going to have another play today so see what i can get away with !!!
Acid if you find the sweet spot with them flex 9200 lmk with pm or post it please !
i got all my data back 88gbs worth, but it was a different drive from the boot drive, so its is very odd, and happened while gaming, probably unstable ram, but was passing memtest and prime95 for a few hours at 5-5-5-14.
o well
Quote:
Originally Posted by HDCHOPPER
I will post my findings but due to the mature of ram and mobo differences (luck) ect whats works for me may not work for others.
know what you mean thanks !
i think by monday my G Skill 4gb PI kit should be here, and i will start overclocking it. one question though, if i put timings too tight at one point can i ruin the ram modules? voltage i will not go over 2.1v anyways so i am not worried there. timings are the other variable, but if i over tighten them can i destroy the ram?
simply no jasjeet the ram will just fail to work
if you pump big volts into it then yes it will kill the ram
have fun :up:
Acid means the only way to fry ram is with volts and temps.Quote:
Originally Posted by -Acid-
Too high of an OC and you just reset clocks
ok, i was going to max at 2.1v so thats cool, and im going to use Ketz modded bios to reduce over voltage by the motherboard to be sure. then comes the overclocking lol
I've got some 667 budget Hynix running 1016 5 6 5 21 at 2.125 on an AM2 M2N32 SLI board... does that qualify for a cookie... thats 24/7 by the way.Quote:
Originally Posted by LennyRhys
Some mobos (like my Abit Pro) won't allow user to set PLQuote:
Originally Posted by WrigleyVillain
How high will they go at cas5?Quote:
Originally Posted by xdrift0rx
Lookie Here:
2x1GB D9 PL5
http://i383.photobucket.com/albums/o...achemem10k.png
2x2GB Powerchips PL6
http://i383.photobucket.com/albums/o...achemem2x2.png
Very nice mate,Honestly I think you might go for an extra voltage,pull it to 2.25V~ and oc it as far as you can.
just had an hour to play with the G.Skills and got this, i havent tried anything higher than 1000mhz yet, so just timings play.
got them at 1000mhz 5-5-4-13 @ 2V gettint 8200mb read, 7200mb write and 7800mb copy at PL8. at PL7 i get memtest errors.
so cant drop the PL anymore. what else could i try?? lol cant beleive i did quite well with the corsairs before.
I'd try higher volts. Manufacturers sell lots of sticks with stock volts at 2.2 :). If you have a fan, stick it around there, memory diesn't dissipate much wattage, so cooling it down is easy.
yeh i upped voltage to 2.1v, and used Kets modded P5Q deluxe bios 1403 and it pushed read to 8400mb, write to 7275mb and copy to 8050mb. got trfc to 48 from 60, havent tried lower and other timings are as low as possible from bsod lol and memtest and prime95 stable at 1000mhz.
should try 1066mhz, how much difference will it make?
Was that using the 3:5 divider?Quote:
Originally Posted by Mean Machine
Could you show a screen shot with cpuz cpu & memory tabs and asus probe showing vdimm open?