2.8E 478 stepping...is it good?

DamienKC

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Joined

Jul 5, 2004

• Jan 23, 2005

• #1

I scored a 2.8E and sp-94 for $75 tonight, can't use till I get a mobo and ram, but here's all the info on it

Intel '03
SL79K Costa Rica
3408A857

then next to some little picture it says
4413B(maybe an 8)604
0270

I'll probably use this and not a amd64 because...well....$50 for a cpu is godly . I remember it doing 3.2ghz on stock voltage, so on a mach1....mmmm...

Help me out!

Thanks

 

F

freezerx

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Joined

May 11, 2004

Location

Canada

• Jan 23, 2005

• #2

good luck, mine didn't do anything about 225 FSB

 

Lancelot

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Joined

Feb 12, 2001

Location

the Netherlands

• Jan 23, 2005

• #3

That's a 'C0'-stepping 2.8E if I'm not mistaken. I wouldn't count on high FSB's but who knows? It will be real sweet when you reach 250FSB. Don't give it more than 1.500Vcore max. though!

 

OP

DamienKC

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Joined

Jul 5, 2004

• Jan 23, 2005

• Thread Starter
• #4

on a prommy, you'd think 1.5v+ would be ok...

 

Sucka

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Joined

Jan 5, 2004

Location

Denver, CO

• Jan 23, 2005

• #5

DamienKC said:

on a prommy, you'd think 1.5v+ would be ok...

Click to expand...

1.6v would be plenty safe for a prommy. I haven't even heard of a Prescott core proc die from volts, it's the motherboard/PSU that go first.

 

M

MrExtreme

New Member

Joined

Jan 16, 2005

• Jan 23, 2005

• #6

Mine does 3.3 at 1.4volt.
Or it will do 3.5 at 1.575 volt.

Mine is a Mayla C0 stepping.

 

M

MrExtreme

New Member

Joined

Jan 16, 2005

• Jan 23, 2005

• #7

Sucka said:

1.6v would be plenty safe for a prommy. I haven't even heard of a Prescott core proc die from volts, it's the motherboard/PSU that go first.

Click to expand...

I've run mine at 1.6volt for over 3 months now and no problems.
Just control the heat.

 

batboy

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Joined

Jan 12, 2001

Location

Kansas, USA

• Jan 23, 2005

• #8

Yeah, that looks like a C0 version. I had one of those last spring. I got it up to 3.8 gig with 1.5v and the guy I sold it to popped it over 4 gig with phase change (I think they average 3.4 to 3.6 on air). How much vcore your system will handle will depend a lot on the power supply and your mobo's power circuitry. I've seen mobos killed even with phase change at 1.55v.

 

celeron648fx

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Jan 19, 2005

Location

Sydney

• Jan 23, 2005

• #9

75? $ that was cheap

 

OP

DamienKC

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Joined

Jul 5, 2004

• Jan 23, 2005

• Thread Starter
• #10

$50 for the cpu itself. It's actually my old 2.8E from like 9-10 months ago, and i bought it back just yesterday for $50, and said for another $20 i'll take the sp-94, so he did. Mr.Extreme must have got a bad one, because batboy's experience is like mine, i could do 3.44ghz (forgot what vcore, it's been almost a year) on 5:4 because my ram was value ram, so i only ran it 3.26ghz because i could do 1:1. If i sell the Mach1 i'll have better ram and probably be able to run 3.5ghz. Not exactly a upgrade (i had a 3.2 @ 3.9), but more FSB and $165 less, which is good because it can go to a video card or hard drive or something. Personally I think it's a good deal.

 

B

BrandonV

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Joined

Jun 20, 2003

Location

Long Beach, CA

• Jan 24, 2005

• #11

I have a 2.8E SL79K running at 250fsb @ 1.48vcore in bios (Abit undervolted to 1.45ish) and no problems. I haven't tried for any more but I know the chip has more in it.... its the mo bo that I'm worried about.

 

AZNCOOLED

Disabled

Joined

Nov 11, 2004

• Jan 25, 2005

• #12

i have been running my IC7 Max 3 at 1.6 volts under water and vapo , runs like a champ.