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LGA 775 2.8 Engineering Sample

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BigWillieStyle

n00b
Joined
Dec 23, 2004
Messages
19
I got my hands on a LGA 775 2.8ghz Engineering Sample proc. With the multipliers unclocked, what should expect as a stable overclock?

My planned setup:
LGA 775 2.8 ES
Abit AA8XE Intel 925XE
1GB Corsair TWIN2X DDR2-667 Memory
GeForce 6800 GT PCI-E
 
BigWillieStyle said:
I got my hands on a LGA 775 2.8ghz Engineering Sample proc. With the multipliers unclocked, what should expect as a stable overclock?

My planned setup:
LGA 775 2.8 ES
Abit AA8XE Intel 925XE
1GB Corsair TWIN2X DDR2-667 Memory
GeForce 6800 GT PCI-E
Click to expand...

Not only is it hard to tell someone what kind of an overclock they're going to be able to hit.....but now you've got the added "fun" of an adjustable multiplier to compensate and make up for.

Good luck.
 
Asus and Abit i925XE based boards are hitting really good numbers. Typically the processor becomes the weakest link in OC'ing those setups. With a 2.8ES I'd expect 3.4GHz on the low side and 3.8 on the high. Of course at those speeds you'll need some badass cooling for it.
 
BigWillieStyle said:
Knowing the Prescott core water cooling is definitely in the equation.
Click to expand...

I can personally attest to this after switching from my 2.8C @ 3.8GHz to this 3.4E @ 4.1GHz......the two aren't even CLOSE to being on the same playing field when it comes to temps.....holy hell!!! :p
 
BigWillieStyle said:
What kind of cooling were you running in those setups?
Click to expand...

I was running my watercoolng on both, TDX waterblock with a single DTek Pro heatercore and an 80cfm fan....i got to about 3.5 or 3.6 with the 2.8C on air.....but the m0 ship that I had LOVED voltage and was running at about 1.875v steady for months....and actually needed that much at those temps to hit 3.8GHz. :p

Same h2O is on my 3.4E at the moment, but its just temps holding me back. I can hit 4.08GHz sitting in my room, but if i put the comp in teh freezer and drop the load temp by 10-15C I gain 200MHz on the CPU, so I'll be getting a phase change setup up and running sometime early next year.....cus I'm dying to see what -40C will bring. :D
 
I really want to see what kind of yields I get on air then move to wc. But I'm a little leery of phase change.
 
BigWillieStyle said:
I really want to see what kind of yields I get on air then move to wc. But I'm a little leery of phase change.
Click to expand...

Good way to do it, that way you can compare results and see what you actually gained. And a LOT of ppl are still quite lerry of PS.....but it's for those of us who are taking this addiction to the next level and aren't as concerned with the consequences as we used to be. :D
 
The guy that sold me the proc (which still hasn't arrived yet :mad: ) says that stock vcore is 1.375v. That doesn't seem right but then again it isn't an ordinary 2.8ghz 520.
 
BigWillieStyle said:
The guy that sold me the proc (which still hasn't arrived yet :mad: ) says that stock vcore is 1.375v. That doesn't seem right but then again it isn't an ordinary 2.8ghz 520.
Click to expand...

My 3.4E has a stock voltage of 1.3875v or so, and I was assuming that all/most Pressies were the same.....what were you thinkin' it should be?

EDIT: It's actually kinda funny, set at 1.3875 my MAX3 runs the 3.4E at 1.29v or so....and even at that voltage its benchmarkable all the way up to 220fsb.....not bad. :p
 
cornelious0_0 said:
My 3.4E has a stock voltage of 1.3875v or so, and I was assuming that all/most Pressies were the same.....what were you thinkin' it should be?

EDIT: It's actually kinda funny, set at 1.3875 my MAX3 runs the 3.4E at 1.29v or so....and even at that voltage its benchmarkable all the way up to 220fsb.....not bad. :p
Click to expand...

stock vcore for LGA775 pressys is 1.4175, but mine OC's to 3.5 with only 1.36
 
Dillusion said:
stock vcore for LGA775 pressys is 1.4175, but mine OC's to 3.5 with only 1.36
Click to expand...

Thx for the correction, I couldn't quite remember if they were the same or not.....I'm quite pleased and surprised with the level of overclockability some of these chips have. I can do 220-225fsb with about 1.28v or so.....when my stock voltage is 1.3875. This is what really makes me want to get a Vapo strapped to this thing, but I think I need to break away from this hobby of mine for awhile. :(
 
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