Venice, Stepping and Oc Database

[renzokuken]

Hiyas,
Long time reader, first time poster

Well, its 9:00am and I have an exam that I am completely not ready for (because I've been building computers all week) at 1:00pm, so I'll make this quick.

First, hasn't anyone noticed how all the CBBLE stepping chips have completely pwned in regards to OC'ing and those that aren't CBBLE all have **A* stepping? I'm having a really hard time trying to work out what the key factor is in regards to how high a CPU will clock. I have the opportunity to buy any one of the following stepping:

(unfortunately(?) all are LBBLE chips)

0518CPEW
0518CPAW
0518EPCW
0519BPCW

Now you can see why I'm trying real hard to narrow down what the key factor is in regards to OC'ing. There's only 1 of those CPAW cpu's left. Because it's a **A* cpu, does that mean it will clock higher? Or does it all come down to the week it was made? (coincidentally, all 3000+ week 17, 12, and 4 cpu's are **A*). So which one is it? Should I buy that CPAW? I really need at least 2.85ghz from my cpu (when I decide on one) so I can max out my ram and have it running 1:1 at ~318HTT.

On another observation, it seems Australia (where I live) is getting their CPU's from the German Fab. plant. Whenever I google these stepping codes all I get is a slew of german forums with, what seems to be, pretty poor OC'ing results. You can imagine how much fun it is wading through all the "hoger klokken's" and "spreken net's" all the while desperately trying to find some OC'ing figures.

So anyways, in closing, whats the deal?

My Rig:
DFI LANPARTY NF4 ULTRA-D
1GB OCZ PLAT. REV. 2
74GB RAPTOR
DUAL 21" MONITOR
POWERCOLOR X800XL
NO CPU! (YET)

renzokuken7 - Lv 216 Clan Agent, Anarchy Online

[Cornelious0_0]

Tough to say...there are so many 0517's turning out to be really nice...but if you're choosing between those 4 0518's then I'd say to try out the xxAx.

[Seriola]

renzokuken, So when I did those stats earlier, that was pretty early in the game... now I get almost the same result with LBBLEs clocking slightly lower, statistically. BUT I only have 12 cbble samples, which isn't really a fair comparison. I have both a 3800 (CBBLE) and 3500 (LBBLE) and they oc the same, big difference I notice is that the 3800 runs slihgtly cooler, like 3C. So I think the LBBLE vs CBBLE doesn't matter as much as the next stepping code... and it seems the "XPAW"s are good clockers, so I would go with that CPAW, but also see if you can get the batch code, also seems to be a good indicator of silicon quality. Don't be surprised if you go through a few cpus thou

[chew*]

anyone notice that the cbble dpaw chips perform best?

3000+ CBBLE 0504DPAW - 3000 MHZ 1.648V PC - Gorod XS
3800+ CBBLE 0507DPAW - 2906 MHZ 1.360V PC - Cranox XS
3500+ CBBLE 0512DPAW - 2840 MHZ 1.456V PC - Onepagebook XS
3000+ CBBLE 0504DPAW - 2800 MHZ 1.616V AIR - Gorod XS

nope i notice that PC does best PC= phase change

[Absolute_0]

Well i'm going to my local computer store (local as in the the Fry's in San Jose) to pick out some CPUs tomorrow, hopefully they'll have some 17s and not just 19 and 20 crap. Looking for 0512DPBW, 0517APJW, 0517EPAW, 0517DPMW.

EDIT
Well it's a good thing i called them today....
they have 2 3000+s and they're week 20s. WTF, they are nearly out of stock.

[Absolute_0]

Har har har....

Hey cornelius, guess who else found LBBLE 0517 APJW?

I'm heading over to Santa Clara very soon....

[s7e9h3n]

I was having problems running dual channel with my 0515 APAW so I thought the mem controller was to blame. I had a crappy OCing 0518 chip sitting on my desk so I popped it in and I was having the same problem. So thank goodness it wasn't the mem controller on this sweet chip. Seems to either be my board or RAM, or maybe even my PSU. Who knows...

Heh, I told you the memory controller was crappy, but not THAT crappy Jinu117 hits the nail right on the head with his comment about this cpu (only his MC seems to be worse thanmine)
OT, here's a little undervolting goodness from my Venice 3800+ preview a few months ago:
On air:

Phase:

[s7e9h3n]

Har har har....

Hey cornelius, guess who else found LBBLE 0517 APJW?

I'm heading over to Santa Clara very soon....

Where? At Fry's????

[Absolute_0]

Central computer Bro...
I called up Fry's in SJ and they had 2 3000+s and they were week 19 so i said F that.
Called up Central Computer and they had 2 0517 APJWs...

Just got back!
Please excuse the crappy quality



As soon as my DFI NF3 Ultra comes in i'm going to start clocking
Hope mine are as good as Cornelius's

[KILLorBE]

Central computer Bro...
As soon as my DFI NF3 Ultra comes in i'm going to start clocking

No need to wait, just hand it over to me, my DFI nF3 Ultra has been waiting for your CPU

[Absolute_0]

No need to wait, just hand it over to me, my DFI nF3 Ultra has been waiting for your CPU

So you got the DFI NF3 Ultra! How is it? Does it clock better than your previous board?

Oh i forgot to mention, my batch #s are high, 5xx and 11xx, Cornelius what is your batch #? Hope it won't affect me too much...

[KILLorBE]

So you got the DFI NF3 Ultra! How is it? Does it clock better than your previous board?

Well I still need to buy a CPU and some Memory, Why did I buy the board? I've been waiting too long to build a new rig, and I've been looking for a board that didn't have all those problems other nF3 939 AGP boards have/had...well this board also has problems (I didn't expect it to be perfect), but now I'm sure I'll spend every dime to finish my rig ASAP, otherwise it might have taken me another year.
I wanted to build a P4 rig last year using the DFI 875-T board (I'm an Intel guy) but I said %$#@ it, lets give AMD another try (My last try was a horror story..no I don't want to talk about it) so I started looking, and looking, and looking...and...now there's no way back

[Absolute_0]

Well, try to get a week 15 or 17 Venice and you should be alright. You can't go wrong with Venice . As for going AMD, you made teh right choice

[wevsspot]

Well, in my excitement to get my Venice core plugged in and running I forgot to record the entire stepping code. But I do know that it was a week 20. Over the course of the last three days i've been able to hit 2.550 mhz at 1.42v. Everything is Prime95, SuperPI and hardcore gaming stable.

Sorry I was lame and forgot to record the entire stepping. Next time I pull of my heatsink i'll write it down

[wevsspot]

And last screen shot showing CPUz

[Absolute_0]

So 20s aren't looking so good.

Wevsspot, be sure to post it in the thread titled "New Week 20 Venice 3000+'s. Post your results with one" everybody's waiting for the results there

[Cornelious0_0]

Good thing I picked up mine when I did...I'd hate to be stuck with another dud.

[overcrash86]

http://valid.x86-secret.com/show_oc?id=24275



http://valid.x86-secret.com/show_oc?id=24276







waterchiled -6°C

[Absolute_0]

Here is my
LBBLE 0517 APJW, batch #1127
Not quite as good at Cornelious's! I need way more Vcore. It seems very SP stable but as soon as i raise HTT a little i get a BSOD, and then with a tad more Vcore it is stable again. Maybe it's a RAM thing.

Before you tell me how bad teh score is, I KNOW. I'm running ram with a huge divider, 2T, and terrible timings... just wanted to make sure ram wasn't a limiting factor

aircooled BTW

[lehmin]

http://valid.x86-secret.com/show_oc?id=24275



http://valid.x86-secret.com/show_oc?id=24276







waterchiled -6°C

waterchilled ? water -> 0 degree = Ice

[overcrash86]

waterchilled ? water -> 0 degree = Ice

car liquid cooling, it can go to -25°C without ice

in french LDR -> Liquide De Refroidissement

[Cornelious0_0]

Still not bad Absolute_0, ridiculously newb question, but where exactly is the batch number located on these things?

[exscape]

Lower right of all the crap on the CPU. The 3 (4?) last digits.

[s7e9h3n]

Lower right of all the crap on the CPU. The 3 (4?) last digits.

Last 4 of serial

[Absolute_0]

I can run Prime95 for a half an hour at 2.89 Ghz but 2.9 is barely stable, and 2.92 gave me an immediate blue screeen
It seems that i'm getting a lot of blue screens instead of seeing instability.
Example: I ran SP32M at 2.85 and it seemed really stable, moved up to 2.88 Ghz and boom BSOD instantly. Raised voltage up a tad and no more BSOD. My other venice wasn't like this; is it normal?