i used to run at DDR620 @3-4-4-8 @ 2.8vDIMM

yeap, tried already, 2.9vDIMM (read as 2.97vDIMM) with active cooling, also same result, BSOD on windows booting..., i wonder how's that happen after long time use @DDR640...is it my RAM died? i don't think so as my bro's mobo can go all the way just like normal...

i think it's not burn your processor, it's more like unstable...

IMO, yes, it's worth...single core to dual core la...for sure better...as for migrate to S940 AM2, yeah...it's kinda need a little more than just upgrading your S939 single core to dual core S939...if i were you, i might just stick to S939 with maybe X2 4200+ or FX series and build another S949 AM2 rig...just my 2cents...

yes, when comparing X2 with Dual Core Opty, i'd say, go for it...go for Dual Core Opty

, i set HTL @1x multiplier...so 320x1, 320MHzx2 it's 640MHz...

This post has been edited by sniper69: Jan 14 2007, 11:03 PM

nope, CPU/RAM must run synchronize. the use of divider is for limiting our RAM to certain speed and let only our CPU clock way higher even stock RAM clock...let say, for instance...i have S939 A64 3000+ 1.8GHz coupled with 2x512MB Kingston KVR PC3200 DDR400, when use 1:1, it might be impossible to get 250MHz on RAM (maybe lucky enough to get that speed), so what to do, i still want to overclock but my RAM's limit it...so here's the memory divider comes in...use it to limit say DDR400 while my CPU clocked way higher than stock 1.8GHz...get the point?

take mine for instance...currently i'm running on divider 166MHz (333MHz) but still my HT (FSB) at 300x9 while RAM at 245MHz (490MHz)...should be no problem...keep in mind, it musnt RAM FSB higher than CPU FSB...i can't explain further...sorry for that...

This post has been edited by sniper69: Jan 15 2007, 12:53 AM

hy there...the reason you using memory divider is to limit the RAM from clock way too high for that RAM...let me explain (hopefully)...
you got nice Venice A64 E6 which is can be overclocked up to 2.88GHz (320 x 9), but the problem is, you can run your RAM at 320 too (1:1) due to chip limitation, so here's the memory divider comes in handy, say you'd still wanna run 320 x 9 but you have to set your RAM speed even lower in order to make it happen.ok...say you've got 320 x 9 while your RAM 320 x (5/6) (166MHz divider) so it'll run 266MHz or 533MHz instead have to run 640MHz with instability issue...

in the BIOS...
dude, you can't think exactly that way, it isn't absolute DDR333, as i told you earlier, its for limiting the speed...it'll run 333MHz only if you didnt overclock (200 x 9), everytime you increase HT (FSB), you also increase the memory clock's FSB, say 300 as for FSB and 300 for RAM, but since you limit the RAM at DDR333 mode, it's 300 x (333/400) got that?

yes...you got it right...
here's my overclocking step (my own preference though)...

Mission : Highest CPU Speed (GHz)
CPU Multiplier : Stock (9x) - leave it alone
HTT Multiplier : 1x (instead of 5x)
RAM FSB : 100 (yes, lowest speed )
RAM Timing : Stock (Auto)
vCORE : Stock (Auto)
vDIMM : Stock (Auto)

from there, i increase from 200MHz with 10~15MHz increment and each reboot, SuperPI and Priming for about 15 minutes...after that will continue overclocking to the max...

Mission : Highest RAM Speed
CPU Multiplier : 5x
HTT Multiplier : 1x (instead of 5x)
RAM FSB : 400 (Stock)
RAM Timing : Stock (Auto)
vCORE : Stock (Auto)
vDIMM : Stock (Auto)

just like 1st mission, each reboot with 10~15MHz increment (RAM FSB for sure)

from here, you should get how far CPU and RAM can go...again, this is just my step in overclocking, and now running stable at 2.88GHz (320x9) with 1:1 (Team eXtreem TCCD PC4800), but have to use divider DDR333 on Kingston HyperX CH-5 in order to get 2.88GHz @320x9)...

bootable (BIOS)


this is using ClockGen...


this is the highest A64 3000+ can do...


FYI, I'm on Enermax FMA 350W + A64 Venice E6 3000+ (Stock vCORE) + Team eXtreem PC4800 (3-4-4-8 @2.87vDIMM)...it's not that good compared to Opty or newer CPU , but hope it'll help you guys on how-to overclock kaw²...bout ValueRAM...i don't have the screenie, but i used to have Kingston KVR Samsung UCCC which i succeded to get DDR533 3-4-4-8 @2.87vDIMM...

This post has been edited by sniper69: Jan 20 2007, 11:25 AM

you might be want to loosen the timing, say 2.5-4-3-8; 2.5-4-4-8 and 3-4-4-8...did you tried vDIMM?increasing it a bit might help also...just a thought...

yes...it rock stable...

this is 2.836GHz, the one with 320x9, i must be deleted already...but the system's running daily at overclocked state

, i don't know what it is, so i just leave it auto (BIOS)

well so am i...
you can go to RAM's Handbook @Hardware Section, there's a pinned thread bout how's our RAM Chip character, you better know it (i mean the Chip)...

, i used to have this problem, i can't make it 240, but 239 instead...i don't know what i made or how did i, but it solved automatically...FYI, it is good range, but as a safe side...1000MHz~1500MHz should be allright...did i tell you, mine's @320x1x2=640MHz...

Corsair got "Guru" which they listed out all Corsair's Chip, you can head over there...IIANM, Corsair's House of Help, hope it'll help...FYI, it's for hi-performance RAM, but you can try...

http://www.houseofhelp.com/forums/forumdisplay.php?f=128

yeah...me myself also wonder, what did i did to get it 240MHz...

, i'm on 80GB PATA Maxtor + 40GB PATA Seagate , old fella...

ok...recalled ...
here's what i'm did...(btw, you're using MSI K8N huh?)...i don't think cause of HDD la...
anyway, from what my brother experience (yes, it's my bro's XP -- not mine, i'm on DFI and Asus), anyway...at BIOS, do as usual overclock, say you want to set at 250MHz (which is surely it won't boot), doesn't matter, just set it 250MHz, reboot, but this time, press/hold Insert key, if doesnt work, cold boot then...switch off, while on, hold Insert key until POST appear, it might halt at post, but don't worry, hit F1 to continue...and voila, should be run normally...this method anyway, you have to do it everytime booting your system, from what my bro said, MSI's weakness...

nope, when cold-boot...what i meant was...normally, you just switch on right, so, this time, while switching on, hold Insert key until POST come up...after then, should be allright already...please do note, it'll HALT at POST screen, just press F1, it'll continue to boot...i don't know why MSI behave like this...something like Overclocking Safe Boot...

yeah, but you can try using combination Insert + Reset = Warm boot, same as my bro's PC, if you want details, you can always PM him...ryugan...