Opteron 144 + Expert

gline

Anyone had experience overclocking the opteron on a dfi sli-dr expert?

Having problems, surprise surprise

it will only oc 90mhz on the mach 2 with gskill 4800 ram

if i go any higher it stops after listing the devices during boot.

i have tried more vcore, vdimm, highest timings, 2t, lowering ldt, more chipset voltage etc etc, but nothing will make it boot above 210 htt

also the cab2e's are supposed to e an ok stepping
got the chip of rosco and it said it was @ 2.8ghz on air or water (cant remeber)

Richard Dower

Probably the mobo holding it back.

gline

Richard Dower wrote:

Probably the mobo holding it back.

doubt it mate, this one of, if not the best at running high htt's and good overclocks.

Richard Dower

It is on paper, but every mobo is different and does appear your one isin't behaving nice and allowing all that high HTT and VCORE to kick in.

Thus i suggest your particular mobo (not all DFI Expert) is holding you back, do the normal stuff...update bios, check settings etc.

gline

Richard Dower wrote:

do the normal stuff...update bios, check settings etc.

thats all done mate

looking to see if anyone with an opty and this mobo has any advice and results

conzy

lower the multiplier to like 5 or 6 and see how high you can get the Htt and ram.........

If you cant get a high htt its the mobo im afraid:(

Try Oc the opteron in a different board.......

DemonOfTheFall

Well if your chip OCd for someone else it's almost definitely your board...

gline

DemonOfTheFall wrote:

Well if your chip OCd for someone else it's almost definitely your board...

this is 3rd expert,
brand new from rma from komplett

conzy

I dont know how you are so unlucky.....

Lots of people had great sucess with the Expert.

I bet Komplett got a box of experts, and they are all a bit dodgey, everytime you RMA, they give you one from the same batch................

Try get your money back, and buy a new Expert from OcUk

gline

conzymaher wrote:

I dont know how you are so unlucky.....

Lots of people had great sucess with the Expert.

I bet Komplett got a box of experts, and they are all a bit dodgey, everytime you RMA, they give you one from the same batch................

Try get your money back, and buy a new Expert from OcUk

yeh maybe, il have to play around it and try everything, next is taking out battery all night to reset it

also i noticed wen i booted this mobo up 1st time it had the time already set, which meens it had already been used, probably wanst brand new, it was probably someone elses rma or something

conzy

Its probably you're original one:D

But taking the battery out for 5 minutes or a week wont make a difference, once it clears its cleared.

clear the cmos jumper, take out the battery, have a cup of tea, put in the battery, replace the jumper and its cleared.

Will it not boot at all now ????

gline

conzymaher wrote:

Its probably you're original one:D

But taking the battery out for 5 minutes or a week wont make a difference, once it clears its cleared.

clear the cmos jumper, take out the battery, have a cup of tea, put in the battery, replace the jumper and its cleared.

Will it not boot at all now ????

dfi guys tell u to leave the battery out for a few hours as it holds a charge

yeh it boots fine, everything runs grand at stock speeds
but wont boot if htt is over 210 (extra 90mhz oc)
no matter what settings

il try take out battery and swapping dimms into different sockets and taking out soundcard etc

conzy

do you have any other ram??

try one stick on a divider, kepp it at ddr400 and oc the CPU.

Try yellow slots, orange ones drive the ram harder........

Good Luck;)

gline

conzymaher wrote:

do you have any other ram??

try one stick on a divider, kepp it at ddr400 and oc the CPU.

Try yellow slots, orange ones drive the ram harder........

Good Luck;)

yeh i have corsair 4400 spare

il have to fiddle about with this, damn u dfi.. source of lost hours

conzy

ahhh, but source of happiness when everything goes well, like my 3700 at 2.8ghz at just about stock voltage;)

gline

conzymaher wrote:

ahhh, but source of happiness when everything goes well, like my 3700 at 2.8ghz at just about stock voltage;)

i havent experienced happiness with dfi at all yet

unkel

gline wrote:

the cab2e's are supposed to e an ok stepping
got the chip of rosco and it said it was @ 2.8ghz on air or water (cant remeber)

What's the week number, e.g. CAB2E 0536? CAB2E are generally not among the best o/c'ers and to make matters worse, they seem to be one of the most varying steppings in general with regards result. You might just be unlucky and got one that doesn't clock at all

I take it you did NOT see proof of stable results @2.8 (or even just Pifast completion) before you bought?

gline

unkel wrote:

I take it you did NOT see proof of stable results @2.8 (or even just Pifast completion) before you bought?

true

but the week number is 0548 epaw
which all results i have seen online seem to be good - 2.7-2.9 on stock cooler

gline

ok pulling the battery lastnight allows me to boot @ 220htt
but 230 is no go, the windows loading screen comes up faded and doesnt go from there

on xtremesystems forum 1 of the guys reckons its cold bug

il have to do a bit more testing etc

gline

fails memtest @ 230, passes @ 200
hmm

conzy

Wait are you using phase???????

If you are its definitely cold bug, nothing else could be wrong, maybe some more startup voltage.........

Slap a stock HSF on it and you will get 2.8ghz, maybe

unklerosco

Thats what i would have tried first...

I can gurantee this chip will clock faster than 2.8ghz.. I've seen it clocked at that speed, saw another one from the same batch clock @ 2.96.

Richard Dower

It's luck of the draw when overclocking, one guy may have had it stable @ 2.8 in his rig...but every rig is different. You could have ten motherboards of the same brand/model and they will all act differently to overclocking.

conzy

Gline will you try with the stock HSF?

I want to know how it goes..........

gline

unklerosco wrote:

Thats what i would have tried first...

I can gurantee this chip will clock faster than 2.8ghz.. I've seen it clocked at that speed, saw another one from the same batch clock @ 2.96.

i know it aint the chip, i will try it on another rig in a week r 2
i have a 146 coming from komplett for my 3rd rig, so il swap them over and we'll see

is there any issues with x850 xt's on dfis? could it be gfx?

DemonOfTheFall

Why not try with the stock cooler to eliminate cold bug from the equation ?

gline

DemonOfTheFall wrote:

Why not try with the stock cooler to eliminate cold bug from the equation ?

that will be the last thing to try, its hard to get the mach 2 stuff off and remounted

DemonOfTheFall

Ah yes... suppose it would be pretty damn hard.

Dman_15

I'd guess cold bug.

but try playing with Max. Async and Read Preamble

8 4, 9 6, 9 5.5, 6 4 etc.

These two settings are often the key with the opterons. I had major instability untill i found 9 6. I know i'm on a DR but the same setting is in the expert i think.

Auto = bad for these two settings

gline

Dman_15 wrote:

I'd guess cold bug.

but try playing with Max. Async and Read Preamble

8 4, 9 6, 9 5.5, 6 4 etc.

These two settings are often the key with the opterons. I had major instability untill i found 9 6. I know i'm on a DR but the same setting is in the expert i think.

Auto = bad for these two settings

what u meen(im not in front of machine a tthe moment)?
higher them or lower them?

Dman_15

gline wrote:

what u meen(im not in front of machine a tthe moment)?
higher them or lower them?

Just play about with them. There is no rule as to what works. You'll have to try them all.
Async should be higher than read preamble, but thats the only rule. 8 6 wont post for me but 9 6 is sweet as a nut. It really is just time and guesswork

gline

Dman_15 wrote:

Just play about with them. There is no rule as to what works. You'll have to try them all.
Async should be higher than read preamble, but thats the only rule. 8 6 wont post for me but 9 6 is sweet as a nut. It really is just time and guesswork

well there are articles on all these on dfi-street, but i couldnt be arsed to read all of them, so its not really guesswork

BadCharlie

Gline a quick question.

What on earth do you use your 4super computers for ??

I have just one very outdated computer and it does all i want for me "see sig".

gline

BadCharlie wrote:

Gline a quick question.

What on earth do you use your 4super computers for ??

I have just one very outdated computer and it does all i want for me "see sig".

well main rig is gaming mainly, 2nd rig = ftp/network/fileserver (which i will be making into dual xeon and selling the rest off), 3rd rig - media centre
4th rig is being built to be sold

conzy

Can you not adjust the temperature of the Mach 2, so that it doesnt cold bug????

Like adjust it so that its around 20 degrees load and not -20 load

gline

conzymaher wrote:

Can you not adjust the temperature of the Mach 2, so that it doesnt cold bug????

Like adjust it so that its around 20 degrees load and not -20 load

yup, thats the next plan, Dman_15's solution didnt work, it didnt change anything, its looking more like cold bug, as the cpu is @ -25degrees il try it @ 0 or +10 maybe, shouldnt be a problem there

gline

damn, it is definitly cold boot issue

i booted the cpu up @ about -10 and it worked, froze when it got past -20
u cant set the mach2 to work at a certain temp, so looks like il have to try a different cpu in it, il have to try the 146 thats coming this week in it and see if i have better look with that :mad:

conzy

why not do that 24/7???

There is no performance difference in running at -25 or 25 degrees, so why run it at -25 when all that does is coldbug and create condensation.

I bet it will be grand if you run it at 20 degrees;)

gline

conzymaher wrote:

why not do that 24/7???

There is no performance difference in running at -25 or 25 degrees, so why run it at -25 when all that does is coldbug and create condensation.

I bet it will be grand if you run it at 20 degrees;)

i dont think u got what i said.... i said u CANT set the mach 2 to run @ a certain temp, it runs at the coldest it can go which is -50 (which the condensor is at). the only thing u can set is boot temp, at what temp it allows ur pc to start booting, but once it begins booting the head is still getting colder and colder until it reaches its coldest temp which is roughly -50

also cold bug has nothing to do with condensation.....

condensation does not form with the mach 2 kit, as it has a heater located at the back of the motherboard and a sensor to detect moisture if there is a small airhole in your seal, heater kicks in if it detects moisture. and the whole mounting kit is airtight so condensation isnt supposed to form.. so thats not really an issue.

cold bug is the inability of the memory controller on the cpu to function correctly at a certain temp below 0 usually between -5 and -20

the fix for this is to get a new cpu for the rig, il try my 146 on it wen i get it, if that doesnt work i'l have to go for something like an fx60 or similar chip, they dont suffer as badly from cold bug, only happens on those really under about -60 or below

thanks for the suggestions guys, kept me sane

conzy

I know what cold bug is:o

And that "anti-condensation" feature sounds great.

But they should have put a temperature control on it:rolleyes:

All it is, is a freezer / airconditioning unit,

I say sell the Mach 2 get a good water kit or a freezer64 pro.

I would prefer a working 144 at 3ghz, instead of a 144 at stock at -50 degreas:p

gline

conzymaher wrote:

I know what cold bug is:o

And that "anti-condensation" feature sounds great.

But they should have put a temperature control on it:rolleyes:

All it is, is a freezer / airconditioning unit,

I say sell the Mach 2 get a good water kit or a freezer64 pro.

I would prefer a working 144 at 3ghz, instead of a 144 at stock at -50 degreas:p

im not going to be leaving the 144 @ stock, i will be using it in an air colled rig, my sli-dr rig with xp120

as for the mach 2, i will stick the 146 in it and see if that is affected, not all opterons are affected by the cold bug.. i might get lucky, still dont know what stepping i will get from komplett.....