whut?
what was the default timings for ur TCCDs?
i ran at 280 @ 2.5-4-3-7 on mine with 2.66V

My default timings are 2.5-4-4-10 - but my tccd doesn't work at any speed other than 2-2-2-5 200mhz with my opty. No amount of tweaking vcore, vdimm, dividers or timings has helped, not a different bios and not even an Asus A8R. I used to be able to use the default 2.5-4-4-10 at 300mhz with a Venus. So I figure it must be an issue with my opty memory controller and/or my tccd because a pair of BH5's didn't have a problem going above 200.

Guess it's time to go ram hunting.

hey are u using the ultra d that u mention in ur sig??? if yes try to change slot ...try orange slot... hope it help!

dude that is really strange.
have u tried to manually set ur timings?it shud not run at 2-2-2-5 unless u set it to.
kinda weird how this is happening to u.

i had read thru some post in xtremesystem forums that Optys have issues with TCCD. Try and use a 5/6 mem divider, see how it goes.

2225 are the spd settings for my ram at 200mhz - but even then I had to change the other timings to get stability because at all auto it just wouldn't boot.


Actually the 14x series seems to do fine - but it seems like the memory controller on evethe 16x dual core series doesn't like tccd timings. Getting 300mhz to work on an A64 venus with my ram was a nasty experience already. As for the divider, dude, I've tried them all, also with loose timings but they just don't work outside of 200mhz. I think my ram's crippled - I've had them for quite some time so I wouldn't be surprised if all the testing shorted an IC or something. Just hoping maybe it wasn't my ram.

Anyway guys , thanks for the suggestions.

well u cud always pass the RAms to me for testing
lol just a suggestion. my TCCD's are doing great with my opty.
just that i think i hit the wall with my opty @ 2.85 ghz. and now i wud be lucky to even hit that speed again.

Heh, I'll need to get some new ram first dude. 2x256 just isn't enough for me to go back and use my trusty BH5's, which never fail to bail me out when my TCCD's being a b****.

I think 2.8Ghz is around the limit on air cooling. I can do that with my opty too but it never passes even superpi and there are too many random errors playing games and stuff.

any reason for that?

hi guys, just wanna ask (newbie in overclocking), how high can we overclock an Opty 170 with a stock cooler? the safe limit. sorry if this question has been asked/answered before. thanks.

depend on stepping & luck.. even using the stock HSf, can raise the vcore coz ive readin' some site mention tat the opty dual core stock HSf better than XP-90

really depends on the heat leh.
but i noe the stock HSF really keeps it cool. just thange the fan if u arent happy bout the temps

what are good opty 170 steppings?

is the Ninja Scythe better than the stock cooler? i mean with noticeable huge difference, or is it just better to stick with the stock cooler?

ninja sure will be better

just stick with the stock HSF and see how ur results are.
if u feel that the temps are too high, then only change.

thanks advice noted

Opteron 144 - CAB2E 0602GPAW

testing rig
# BIOSTAR TFORCE6100-939
# AIR SAMSUNG TCCC MEMORY
# COOLINK U8-120 HEATSINK
# FORTRON EPSILON 700W PSU

Eh dude, what's this Biostar Tforce you're using and what divider is that? And I'm surprised new cpu batches can clock so high....

abang din, nice gem you got!! 3.1GHz @ 1.54v with AIR cooling only. Bila nak jual? remember PM me ya

newbie Q here :-

which one more OC'able between Single Core Opty & DualCOre Opty??

havent seen any DualCore Opty at 3.0Ghz currently