The Beginning

not sure man, have to dismantle the thing, i'll check that 2morrow.

just did 3 passes at 310Htt 2790Mhz no prob.

havent received the 146 yet still waiting for it.

C-BuZz

 

try bumping voltage on cpu

 

more than 1.55v?

whats the max I should bump it to?

C_BuZz

 

really depends on your cooling there.............i don't normally hear people on your cooling with much over 0C so not sure how safe it is to pump more volts through it but for air and water 1.55V is about max people were using on Opteron.....generally of course.........i even went to 1.63V i think on my 144 with that water cooling kit.........so don't know check your temps and go a bit higher if you want

to above 1.55 you need to use special control percentages hence 1.5*110%=1.65v in bios

 

ok, ram tweaks pls

C-BuZz

 

OK.......use these for now

Make sure you use MEMTEST loop#5 (10xpasses) loop#8 (3xpasses) before you go to windows

FIRST SCREEN
200 or DDR400
Enable or 1T
2.5
4
8
4
7
14
2
2
2
3
TREF=Auto
.
.
.
Max Async Latency=8
Read Preamble=6



SECOND SCREEN

300
3x
16 16
9
100
.
.
.
.
.
leave all as is below

 

re-mounted the block today & added some extra heat paste, & OMG what a difference in CPU temp's.

-19c while priming!

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at idle cpu dropped to -28c!! Evap was rocking today sitting on -50c Holding while priming!


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AARGH, cold bug has struck, cant even boot into Windows most of the time.

Very happy with the system performance, she has now exceeded my expectations & hasent skipped a beat

C-BuZz

 

I knew it was bad mount. Is it the cold bug kicking in or are you pushing the Oc too far? Does it boot stock?? At extreme temps??

 

your idle temps are probably dipping under the cold bug limit......so try to keep the memory controller busy with some application loading the CPU to keep it warm

or give higher voltage a crack now and more MHz 1.5*110% and shoot for 2.9GHz again and see what happens

 

cold bug, it was booting in every time last night at the same settings when the cpu was sitting on -10, & I could prime till I was red in the face, now it just freezez at the windows xp boot screen & its freezing before I can finish Spi.

so pretty sure its cold bug.

have to let some gas out so I can bring the evap temps up a bit.

C-BuZz

 

actually that's a good test for cold bug....I would do that first..............so go back to default stock and crank up your cooling unit and see what happens

 

Whats a good program to keep the controller busy? drops to -19 Max while priming, I saw -30c on the cpu then system locked

I'll give that a crack.

C-BuZz

 

ok re-started the system, reloaded defaults & its now priming at -25c, however the evap is quickly climbing into the negatives

Still 8M priming at -26C!


Oooer

C-BuZz

 

My experience with cold bug shows that your max clock speed will vary with temperature (duh), but its not how you might think
What people dont often realise is that with these bugged chips, once the chip gets down past its optimal (max clocks) temperature, the max clock will actually start to swing in the other direction (as temp drops further, so does max clock!).

So its quite possible that with your fixed temp idle/load unit you have there, that you can drop your clock speed down to the point where it will still work at your low idle speed, but you'll need to then load it up (warm it up) to be able to turn the clocks up. Once that load it gone it'll fall unstable again.

Heres a gay pic i just drew of my experience with coldbug, temps arent actuals, just for understanding purposes.
Once you pass below optimal, it falls away very quickly.

 

Nice 1.

It's been sitting on -29 / -30c priming for about 10 min now, 2nd run of 8M Spi. When it stopped the temps dropped to -37c. But still didnt crash, which proves your point.


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C-BuZz

 

Ben just start gradually OCing with 50MHz increments and 8M runs....watch your divider when you get into high 2s HTT of course and other settings i mentions

on another note did you test the DDR600 RAM settings which should be default for that awesome TCCD RAM

 

havent tested teh ram yet.. I wanted to sort the evap mount out first. Now that that's sorted out

it's now passed 2 x 8M runs & halfway through a 32M run & default settings with the cpu sitting on -30c / -31c now.

I can get the temps even lower by adding some more gas but I dont think its really necessary..

I'll start upping the Htt

C-BuZz

 

c-buzz, how much would you let go a unit go for? one similar to yours?

your work looks tops , decent quality as far as i'm concerned.

 

Thx

havent really thought about selling them dude. its not really user friendly at this stage..

I may consider letting this particular unit go in the near future once i've mounted a Vapo chill controller to it lol, so its kind of plug & play

C-BuZz

 

you should download SuperPI/mod1.4 as everyone uses that one .......so we can compare times properly