Is the I7 D0 the new stepping?

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xSteathx

Limp Gawd
Joined
Jul 8, 2003
Messages
384
I am looking to buy a i7 board and a chip next month, what the chances of me getting one with D0 Stepping (SLBEJ)?
 
Depends on where you buy it from. Some places guarantee a D0 while it's the luck of the draw with others.
 
Lower voltage, more head room for overclocking. I hope I can get one by then, the C0's should sell out.
 
My D0 D0es not seem to be any happier than my C0 above 3.6 at stock voltages. Couple hours into torture test now just fine at 3.6, but BSOD'd after 1.5 hours at 3.8GHz and stock voltages.
 
^^^ Thats odd. I dont think their is too much difference between the 2. maybe slightly higher clocks with less voltage; however some are claiming same or even higher temps.

What Batch # do you have Kyle?
 
Temps are holding at 61-64 after two hours. On a water cooled system, about 26C ambient. Batch 3849B041 - SLBEJ
 
You can also check the For Sale section on this forum, many users are selling D0 because they either buy too many or they are buying them just for the purpose of testing for fun. Once they are done with the fun, they will let them go for much cheaper than new ones from the stores.
 
I have a B028 and B203 I may be selling at some point in time. I'm waiting for my board to come back for more OCing before I decide which one to keep. If I can't decide which one to keep, I will buy another X58 (with the newer B3 revision chipset) and keep both.
 
Nice; Ive been waiting for your latest results. hope they turn out well for you. from what I have read so far, the 028 should fair slightly better.

lol, looks like we are going back and forth between threads, but Im off to bed now. Take care and will be looking for you latest results on XS
 
I will need to sleep as well. Good night and keep dreaming of OCing! Hehehe...LOL
 
Renegade5399 said:
I am not sure about the batch you listed, but it seems the 920 D0's are needing more voltage to get to 4.0 and beyond when compared to the Xeon series.
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I was hoping for 3.8GHz at bone stock.

3.6GHz is stable now for 12 hours at 100% load and 100% load on 12GB of RAM. CPU at 1.14v and the memory at 1.64v. All other values locked down to stock values.

I am happy with that. Sorry to have spent an extra $100 on the D0 now though. :( Oh well, always fun to try. :D
 
^^^ lol, I think all the I7/ xeons are furnaces.

It would be nice to see these chips w/ load to run around 50c on a good air cooler, or at least around 60 max.

My c0's running 8 threads of WCG and folding on multi gpu's run anywhere from 70-78c 100%load. Idle temps are 40ish/mid 40's. this is running @ 3.8ghz/ 1.3v on TRUE 1366 RT. If I push 1.4v 4ghz, then temp climb even higher; especially with summer here

I keep seeing great results with Xeon's, but still high temps on D0's. But I have also seen similar result with I7 D0's. I think Im going to live life on the edge and get a Xeon to try out
 
If you want to see an almost instant 10°C drop in temps, disable HT. I don't run it, it's just too much heat especially with summer coming. I run the settings in my sig with HT off and run F@H SMP client at 100% 4 core load and with my water setup, I hit about 58-62°C load depending on the ambient. That is usually around 23-26°C in my apartment.

As far as the Xeons go: I think they may possibly have a more robust memory controller. By robust I mean meeting Intels specs for server class CPUs. Where some people are having issues hitting 2GHz RAM on some 920's, I have no issue at all with this Xeon and at low VTT volts as well. Lower VTT volts also helps keep the temps in check.
 
Renegade5399 said:
Jeez man, 1GHz overclock on stock volts is nice. My C0 920 couldn't do that. Right now I am testing this Xeon at 4.42GHz (221*20) with 1.31v. Seems to be going well so far, but man these things cook once you break 4.2GHz or so. Damned furnace I tell ya!
Click to expand...

My C0 920 gets 3.8 on stock volts. Once you go for 4 or 4.2, then you really have to give it some juice.

3.6 is respectable though, and I'd be happy with that as well, at stock.
 
Renegade5399 said:
If you want to see an almost instant 10°C drop in temps, disable HT.
Click to expand...

Not sure about instant 10°C drop.

I originally had my C0 at 4GHz @ 1.35v and was idling at 42°C. Now, with 3.8 GHz @ 1.25v I am seeing idle temps of 38-39°C. About a 3-5°C difference.
 
I can believe it; well I have heard many say there is a big difference. However I need HT as I run 8 threads of WCG. I only fold on gpu's, do not run SMP's.

There have been big improvments ppd wise running HT vs no HT.

also to pc user; I have noticed the difference is when you put a full load on the cores; I do not think you can really compare idle temps in this case. I idle at about the same as you, but once I put 8 threads of WCG and 100% load across all cores; emps go up 30-40c
 
INFRNL said:
also to pc user; I have noticed the difference is when you put a full load on the cores; I do not think you can really compare idle temps in this case. I idle at about the same as you, but once I put 8 threads of WCG and 100% load across all cores; emps go up 30-40c
Click to expand...

As far as I recall, when I was testing both setups for stability, the difference was about 5-7C on the cores.
 
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Yea, idle temps don't really mean anything. I was referring to load temps. I should have specified that. 7-10°C drop at load when you compare HT on to HT off.
 
people what does this all mean? i have an "old" first generation i7 board. will this new "stepping" "thing" mean i can't buy newer i7 cpus, yet to be released?
 
If you get one... great if not...it's not the end of the world. Truthfully, you can get to 1Ghz over with just about any 920 chip.

Getting sick of "must have D0 or won't buy" crap because the 920's are a gift from the Intel gods and stepping... really at the end of the day is a luxury but not a deal breaker for OC'ing.
 
25thofmay said:
people what does this all mean? i have an "old" first generation i7 board. will this new "stepping" "thing" mean i can't buy newer i7 cpus, yet to be released?
Click to expand...

Not in the 'least bit. A stepping is just a revision or newer batch of a CPU, nothing really changes as far as functionality or compatibility, sometimes they're just a lil' bit more efficient (they run cooler and/or require less voltage to run at the same speeds), other times not even that changes. Most CPUs go thru several steppings, probably half a dozen thru their lifetime if it's in production long enough.
 
Impulse said:
Not in the 'least bit. A stepping is just a revision or newer batch of a CPU, nothing really changes as far as functionality or compatibility, sometimes they're just a lil' bit more efficient (they run cooler and/or require less voltage to run at the same speeds), other times not even that changes. Most CPUs go thru several steppings, probably half a dozen thru their lifetime if it's in production long enough.
Click to expand...

QFT. Nothing to do with future compatibility.
 
SymptomsReagent said:
If you get one... great if not...it's not the end of the world. Truthfully, you can get to 1Ghz over with just about any 920 chip.

Getting sick of "must have D0 or won't buy" crap because the 920's are a gift from the Intel gods and stepping... really at the end of the day is a luxury but not a deal breaker for OC'ing.
Click to expand...

when i typed this last week i got untold amounts of shit. so i guess its ok now.
 
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