Where to stop? PIII700@1162?

Crashman · Jun 22, 2001

I decided to find out just haow far my PIII would go-pushed to to an unreasonable amount of votage at an unreasonable bus speed that put me well over a GHz, it overheated of corase, so I threw another fan on it, took another run, it worked fine! So then I increased the voltage some more, then more bus speed, then more voltage, then more bus speed......OK, so who here has actually FRIED one of these (excluding peltier failure-I'm not using a peltier), and at what point did it fail? I was puttting a LOT of voltage through this thing! BTW it is a cBO stepping for all you morons that think the cCO goes higher!

Cast not thine pearls before the swine

silverpig · Jun 22, 2001

A 66% oc? Wow, impressive. Chips are cheap, push that thing to the max... hehe.

Another computer wanted. Donations accepted. :^)

Crashman · Jun 22, 2001

It was only a "how far can it go" test, using a generic motherboard set at 133 using SoftFSB to take it to 166FSB, with chip voltage that I don't dare disclose or I might be linched, using a 120MM wide workstation heatsink with two 60x60x25mm fans, with another fan blowing on them. While I won't disclose the voltage used, I can tell you that is was WAY over 2 volts!

Cast not thine pearls before the swine

Guest · Jun 22, 2001

This could be good news for my attempts at getting my celery 667 to 1.1ghz!! i'm only running at 1ghz@1.95v so if i can push it beyond 2.2v wahay i might just do it.

that way the pc will keep my room warmer still:-D

cheers

steve

CELERON 667@1GHZ............... WOTS THE POINT?

FatBurger · Jun 22, 2001

Chips are cheap, push that thing to the max...

Pentiums are still more expensive than Athlons. A PIII 700 is still $97. I'd hate to wast $97 for no real reason.

------------------------------
Apple? Macintosh? What are these strange words you speak?

Crashman · Jun 22, 2001

Hey, I wouldn't recommend it, but still, you can try. Don't blame me if you wreck it.

Cast not thine pearls before the swine

FatBurger · Jun 22, 2001

Hehehe...good idea to throw in the typical 'at your own risk' thing.
If I had a dollar for every website that simply said "Standard disclaimer applies"

------------------------------
Apple? Macintosh? What are these strange words you speak?

louie2001 · Jun 23, 2001

Crank it up some more then tell us when it takes a crap.
Hell as lucky as you are when it craps stick some JB Weld on it, stuff it in your oven and it might come back to life.
(LOL)

Rock out with your AMD out

Crashman · Jun 23, 2001

Nah, I think once I pass 3 volts Intel won't honor the warrantee!
I'm not that lucky though-I just had a Celeron 633 that would NOT reach 100FSB (950). I cranked the voltage up until it would finally boot, and it overheated and shut off (don't you wish an AMD would shut off?). And that was with a monster heatsink. So I gave up on it and resold it, it worked just fine at 633.
Oh, and I can't crank up the 700 any more, can't get any more bus speed. My wife is using the CUSL2, the only board I have that can go over 166.

Cast not thine pearls before the swine

louie2001 · Jun 23, 2001

Well my AMD would shut off, of course it wouldn't ever start again.You may have to swap with your wife and crank it up some more.Just to push the envelope a little more.
What the heck GO FOR IT!!!!!!!!(HAHAHA)

Rock out with your AMD out

Crashman · Jun 23, 2001

The only problem with that idea is that the CUSL2 will not provide enough voltage, even with pin mods I don't think I can get it past 2.4v.

Cast not thine pearls before the swine

camieabz · Jun 23, 2001

I reckon you should be designing your own mobos Crash.
At least you would have a decent disclaimer.

"CPU bus speeds above 133MHz are supported but not guaranteed due to the PCI and chipset specs....but if you feed it 2 volts and more, it will fly!!!! or fry 😱 "

What kind of stability are you getting with these tweaks?
I always thought you were the responsible type.


"Now drop your weapons or I'll kill him with this deadly jelly baby."

Crashman · Jun 23, 2001

Stability was fine as long as I kept it cool! Tested it under 3dMark-2000. I don't think it would work in a closed case unless I used water cooling or a peltier, or a modified case with a fan blowing in from the side.

Cast not thine pearls before the swine

peteb · Jun 25, 2001

hey Crashman - quick off topic question regarding <A HREF="http://forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&p=635400#635400" target="_new">this</A> thread. On the Cus2 boards, does the PCI divider kick in at 120FSB or 133FSB? Other Asus boards I have drop to 1/4 divider at or above (can't remember which) 120FSB...

-* This Space For Rent *-
email for application details

Crashman · Jun 25, 2001

Go there to find the answer!

Cast not thine pearls before the swine

camieabz · Jun 25, 2001

I seem to remember you advising me to run my BX133 at 133MHz and my AGP at 2/3 = 89MHz.

Does this bear any relation to your post about flogging the AGP bus? I know its supposed to be 66Mhz, but I still can't get my head round the 2x, 4x. Is this directly related to the FSB, or totally independant?


"Now drop your weapons or I'll kill him with this deadly jelly baby."

Crashman · Jun 25, 2001

Independant. 4x AGP really isn't. There just is not that much data flowing to current cards. So 4x AGP only gives you AT MOST 5-8% better performance.
89MHz is more than 5-8% faster than 66, it's actually 33% faster, but you are still limited by the NEEDS of current cards, meaning that it won't really perform 33% better, again, maybe 5-8% at most. So ideally it would be a tie.
In reality, those numbers do not always hold true. But in Tom's 150MHz project, he actually compared the i815 and BX chipsets, and the BX won by a small amount.
Unfortunately the i815 motherboard he used is one of the ones know to reduce from 4x to 2x AGP, and reduce memory timings, when the bus speed exceeds 140MHz. It is not known if he addressed that issue or not. But I have seen a 3% performance increase using a program that does adress that issue.
So all in all, I'd say it's a wash. Have fun, I doubt that your motherboard at 2x would score significantly different than a CUSL2, but if I was a gambling man I'd put my money on the BX133 for 1-3%, do to the inherent efficiencies of the BX.

Cast not thine pearls before the swine

silverpig · Jun 27, 2001

The AGP4x advantage depends on the game. If it's a game with few polys, then AGP4x is just a new cool sounding computer term. When you start to push the poly count way up, you start to see the improvements a lot more. I think the Quake 3 NV15 demo shows this fairly well. I think there's a mod you can do to a quake 3 config file that will force the use of a massive amount of polys. Maybe I'll find that and test it out...

Another computer wanted. Donations accepted. :^)

Guest · Jun 27, 2001

take the volt mods you have done now off. Add a 1.5 battery between the line

I was going to see how far I could get my 1ghz axia going but only managed to get 1ghz for 2 seconds, then the heat sensor kicked in and shut my cpu off (i had my heatsink on wrong tlyk) I am in the middle of getting the warranty cleared so I can get a new one.Edited by m_kelder on 06/27/01 00:24 AM.

Crashman · Jun 27, 2001

3D Mark 2000 pushes graphics to their limit and only gets about 7% more out of it max.

Cast not thine pearls before the swine

Where to stop? PIII700@1162?

Polypheme

Splendid

Polypheme

Guest

Guest

Illustrious

Polypheme

Illustrious

Distinguished

Polypheme

Distinguished

Polypheme

Splendid

Polypheme

Distinguished

Polypheme

Splendid

Polypheme

Splendid

Guest

Guest

Polypheme

Share this page