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Engineering sample

post #1 of 13
Thread Starter 
I bought a mother board from a friend of a friend. I was told it is a is an MSI 915P DUO.

But my real question is that he also said it has a Pentium 4 HT 3.6GHZ 560J Intel Conidential Engineering sample w/unlocked multiplier. Does anyone have a good way to explain what that is?
post #2 of 13
Exactly what it sounds like.
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post #3 of 13
it means its awesome. not really. but its better than a non ES chip usually.
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post #4 of 13
It's a Pentium 4 CPU that you can adjust the clock multiplier up and down, and it's one of the really well-made, pricey ones that didn't go to market.

It's made of really heavy-duty silicon etc b/c they do a crapload of stress tests etc, and they don't need to cut costs on basically unique items.
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post #5 of 13
Well here's a quick and dirty explanation. The Engineering Samples have unlocked multipliers, both upward and downward. This means that you can change the speed of the CPU independently of the FSB and therefore RAM by simply raising the Multiplier one notch.

Through example, it works like this:
My P4 comes stock with a 200mhz CPU frequency and a 16x multiplier.
That equates to 3200mhz because 200x16 = 3200.
By raising the CPU Freq. (the 200 part) to 250, I have attained a 4000Mhz clock speed because 250x16 = 4000. However, at the same time, the FSB has raised from 800mhz stock to 1000 because the FSB speed is calculated by multiplying the 200 part by 4, resulting in 800mhz (or 1000 overclocked). This also raises the RAM speed, which can result in stability issues at higher speeds.

With an unlocked multi, however, I could simply raise the 16 part to 17 and have a clock of 3400mhz (200x17 = 3400) without touching the FSB speed at all, and therefore leaving the RAM alone as well.

ES chips are golden! If you can pick on up for a reasonable price, DO IT! Then come back here and let us help you overclock that baby!
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post #6 of 13
Thread Starter 
I got the board with the chip set already on it for $102. Does that sound like a fair deal? It's my first ground up computer build. So I am tip toeing through the whole process. I have help. But not an expert. All I know for sure is it runs hot. At least thats what I read in reviews.
post #7 of 13
Mine's not unlocked. You're making me cry.
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post #8 of 13
Quote:
Originally Posted by starving030 View Post
I got the board with the chip set already on it for $102. Does that sound like a fair deal? It's my first ground up computer build. So I am tip toeing through the whole process. I have help. But not an expert. All I know for sure is it runs hot. At least thats what I read in reviews.
Thats one hell of a deal! Just slap on some good cooling and you will be on your way!
post #9 of 13
Thread Starter 
Is there a way to check that I got what he said I got?
post #10 of 13
Quote:
Originally Posted by starving030 View Post
Is there a way to check that I got what he said I got?
If you download CPUZ (just google it), I think it will tell you if your chip is an ES or not, so just do that.

Anyone correct me if I'm wrong.
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Sandy Beach
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