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Got a new processor today...

PsycoGeek

PsycoGeek

[H]ard|Gawd
Joined
Jun 25, 2000
Messages
1,226
Just got back from a local store that had D0 stepping Prescott 3.0ghz cores in stock. Price was good considering it was local ($220 US including tax). Not a bad price to pay for the reassurance that you got a good stepping core, eh? I'll be putting it in the system tonight or tomorrow.

See you around the 4ghz mark cornelious! :D
 
I just picked one up and it was a d0 stepping too. I'm still testing, but I wasn't able to get 4ghz. Right now I'm testing at 3.82ghz and it has run at the longest time yet.

My overclock is decreasing. It ran at 3.9ghz for 8 hours and subsequent tweaking yielded only 9 minutes of prime95. So now I'm backed down to 3.82ghz. Before that, I had tried 4ghz on the money, but that failed in less than a minute. This is all at near stock voltages of (1.4V-1.42V)

Do you know what the stock voltage is supposed to be and what is the max voltage I should try to run it at?
 
The motherboard has the processor @ 1.3625v, stock speed. I just got the RBX block accelerator plate changed out and the processor in, so I haven't started OC'ing it yet. That will come later after I get a good idea of what the stock temp is going to be for me... but so far it looks like 38C.

-edit- Max voltage on the box says 1.4v, but I beleive that is conservative. probably about 1.45v to 1.5v max. Anyone want to confirm this for the Prescott?
 
Well, so far what I have to say about this Prescott is HOLY CRAP!

I'm at 3.67ghz (245mhz FSB), default voltage, and she's sitting idle at 41C. Stock temp was 38C.

prescott_OC.jpg
 
PsycoGeek said:
Well, so far what I have to say about this Prescott is HOLY CRAP!

I'm at 3.67ghz (245mhz FSB), default voltage, and she's sitting idle at 41C. Stock temp was 38C.
Click to expand...
Damn, my northwood 3.0 only gets to 3.5ghz without problems...looks like its time for a D0! You still using the Max3?
 
You bet I still have the Max 3! Wouldn't trade it for anything, except a better Max 3!

Too bad about you 3.0 woody... My 2.8 did 3.71, but that's what killed it... and too much voltage. It was fine at 3.6... Shoulda left it there. I'm really happy so far with the Prescott though.

More OC'ing to come... ;)
 
I bumped the FSB to 250mhz and upped the voltage one increment (don't remember exactly what it was). Ran BFV for 6 hours strait and the temp never went above 45c. :eek:

prescott_OC_2.jpg
 
that is amazing, you got a good clocker there! have fun! and good luck with 4 ghz on h20 if you do it
 
Had to bump the voltage to 1.4 something (two more voltage steps) to get it to run prime and Hot CPU tester at the same time. Processor has been at 100% load for nearly 2.5 hours and it won't go over 48c. This thing is looking like it has some more potential.
 
watercooled too, eh? looks like a fun chip. just make sure to fold with it;) (team 33)
 
rogue_jedi said:
watercooled too, eh? looks like a fun chip. just make sure to fold with it;) (team 33)
Click to expand...

Watercooled is the only way to go... except for phase change that is. Too expensive for me though.

Here is another update...

prescott_OC_3.jpg


Voltage is set at 1.4375 in the BIOS. To get to 260fsb I have to bump the voltage up another notch (1.46 something). CPUz and MBM5 are showing the voltage at 1.328 max @ 255fsb. Anyone have an opinion on wether it is safe to go to the next voltage step and 260fsb?

Oh... temps STILL won't go over 48c! :D

-edit- BTW, the temp is what MBM5 is reporting, and Abit boards are notorious for reporting the temps high.
 
Good for you. I've got a SL7J8 (D0 stepping 3.4) at the house, waiting for my motherboard. Sometimes it's hard to wait!
 
Another update... Seems to be stable, same voltage as the last post. Tested it, prime stable for 8 hours strait, no crashes in games, etc...

prescott_OC_4.jpg


Not sure if I should go that extra voltage step to get to 260fsb and a bit beyond.
 
go for 4ghz! it's just that much cooler. as long as heat still isn't a problem, you should be fine. maybe you could break 4ghz by a bit at 1.5v?
 
rogue_jedi said:
go for 4ghz! it's just that much cooler. as long as heat still isn't a problem, you should be fine. maybe you could break 4ghz by a bit at 1.5v?
Click to expand...

Yeah, I probably could, but after frying the 2.8c with voltage I'm a bit leary of adding too much. Anyone want to comment on max voltages for the E cores (max SAFE voltage that is)?
 
Sorry mates, but 4ghz just isn't going to happen (stable that is). I have hit the 4 mark though (sorry no screen shot) but it wasn't prime stable for more than 10 minuits.

In order to get there stable I have to do a DROOP mod to my board. Voltage was set to 1.5625 @ 265fsb and MBM5 was reading 1.54v idle. When the two instances of prime were started voltage drooped to 1.44v to 1.46v on average, and when it dipped to 1.42v it would fail. If I get the mod done, then 4.0+ will be possible. But for now I'll have to be satisfied with 3.87ghz dual prime stable.... Oh darn. :D
 
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