Advice please (important!), P3 1 ghz/133 or 1 ghz/100 (both cd0?)

[Falkentyne]

Hi all,
I already purchased a retail boxed P3 1 ghz/133 cd0 last week, still unopeneed. But now, I'm reading posts about people reaching 1.33 ghz with the retail heatsink and fan. My MSI slotket arrives tomorrow, but i don't know if I should just run the 1ghz/133 @ 150 fsb (1125 mhz) or return the chip, and find a 1 ghz/100 and try to reach 1.33.

I need serious advice here, guys. This is $200 we're talking about,and some of us don't have $$ to throw away, so .....please ok? Thanks.

[batboy]

Personally, I think the chances of anyone reaching a stable 1.33 gig with a P-III 1000 CPU with only a retail HSF is mighty slim. I'm not saying it can't be done or hasn't been done, just that the odds are against you. There are no guarantees in overclocking.

[seoultrain]

well, first of all, you can't assume that you can overclock to 150 (with 133) or 133 (with 100) fsb with stock cooling, although with the right stepping you have a good chance... it's a good idea to get a good cooling system, it's worth the money... also, your motherboard, or other parts in your computer, might not be stable at 150 fsb, since they're not designed for that (NIC cards are notorious)...
you also should look at your mobo and see what your increments for your fsb are... do you have hi-quality components? (ram, video card, mobo, etc.) need more info

p.s. i'm not really an expert, i just read a lot, so if anything i'm sayin is wrong, just correct me

[Ebola]

my new crucial ram should be here by this weekend. 1333 is only a couple of days away.

yea if your gonna get 133 fsb you need decent cooling.

[Falkentyne]

Seoultrain:
my components are able to handle 150 fsb just fine.
I am using a 600e cb0 @ 900 on a BH6 1.1.

So it depends which CPU has a better chance of hitting 150 (or 133).

I hear that almost all cd0 133 fsb 1 ghz chips (heck, even the cc0's) will reach 150 fsb, but a 100 fsb ghz chip reaching 1333 used to be a long shot. Maybe the most recent chips are doing it?

[RedDeathDrinker]

Stick with the 133MHz FSB chip, it will still clock. Get a decent HSF combo though. The stock ones suck once you OC.

[batboy]

I used to have an Abit BH6 mobo and I don't remember it going to 150 FSB. Better check to make sure.

[Falkentyne]

Originally posted by batboy
I used to have an Abit BH6 mobo and I don't remember it going to 150 FSB. Better check to make sure.

that's because the early boards had the cypress w124x PLL chip, with only 8 FSB speeds, instead of the W196x which is used in the newest (Bh6 1.1 and 1.2) boards, as well as some Soyo boards (30 unique fsb speeds)

[puppet]

I've heard of people doin' this.........a guy @ 2cpu has a dual 1 gig @ 1333.......stock cooling. He had to increase the voltage though......

[Propilot]

That is a BX based board, just because it says 150 on the settings doesn't mean it will run at that. Even Abit does not warranty it to run stable over 100mhz. To many factors at that FSB speed. Your PCI and especially your AGP port will be way out of spec.

With that board and chipset I would go with the 100mhz chip. The new cpu chips are very overclockable and even at 133FSB you are running things out of spec. (Just not near as bad)

I also agree, better cooling and premium ram = faster speeds.

[Falkentyne]

Originally posted by Propilot
That is a BX based board, just because it says 150 on the settings doesn't mean it will run at that. Even Abit does not warranty it to run stable over 100mhz. To many factors at that FSB speed. Your PCI and especially your AGP port will be way out of spec.

With that board and chipset I would go with the 100mhz chip. The new cpu chips are very overclockable and even at 133FSB you are running things out of spec. (Just not near as bad)

I also agree, better cooling and premium ram = faster speeds.


I'm at 150 FSB right now, as I said in my above post. 600e @ 900. You didn't see that?

[Propilot]

Originally posted by Falkentyne



I'm at 150 FSB right now, as I said in my above post. 600e @ 900. You didn't see that?

Sorry, I was skimming though the posts and didn't read your second post. Well it was good thoughts for the newbies to read. :D

I think I would still get the 100mhz. The 1ghz 133mhz is the same as my PIII750. The same 7.5 stepping, it just runs stable at 133mhz. But then so does mine.... 750@1ghz 133mhz FSB :) They are really having good luck on those new cpu's, but aren't they all a gamble anyway?

What video card are you using? Thats a really good card to run be running stable.

[Bond_]

i think you should get the P3 1Ghz/100Mhz FSB, i got a p3 1Ghz/133Mhz FSB and i can put it runing it stable @1117Mhz;1125;1140;1147;1155and even at 1200;1255Mhz but not so stable, and it really gets hot even with nice coolers like vulcano, golden orb, vapo, etc... i think you should take the 100Mfz FSB cpu probablty it will help you get more Mhz more overclocking options and stable oc's...
hope it helps

[Falkentyne]

I see your point. What I"m worried about (and believe it its happened enough), is getting a "dud" 1000e, that will only make it to 1200. That's 120 FSB. 120 FSB @ 1200 vs 150 FSB @ 1125? What would you rather pick :)

Also, the PCI divider kicks in at /4 @ 126 FSB (31 mhz pci @ 124 fsb option is too low for the drives, i like speed), so that's 1260 mhz. If I can somehow get a chip that can do at least 1260, (with close to default voltage), then i might have a shot at 133. But if I **CAN'T*, then I'm stuck with a slower chip.


I already have the 1ghz/133 (retail boxed cd0, unopened) sitting next to me, while I wonder what to do. I really want to stick it in....but.....

[Ebola]

wait till next week. i just bought new ram. i'll let you know if i get 1333 with my 1000e

[Falkentyne]

Well, i'm a poor guy, so its not exactly easy for me to go around getting chips.....

I basically have two options right now.

1) return the unopened 1000"EB", and order a 1000e somewhere and hope it overclocks to at least 1260 mhz. If it does NOT, ill have to take a loss, sell it on ebay, and grab the "EB" chip again and just deal with a pretty much guaranteed 1125 mhz/150. Which will take a long time. Maybe almost a month.

2) order the 1000e anyway, so i have both chips, try it, if im happy, then return the 1000EB if unopened (if the 30 days aren't up by then). if I"m not happy, sell the 1000e and use the EB. That will cost money, however :(

Overclocker's database isn't helping at all, either. Most of the entries are cC0 chips, watercooled, and a few cD0's. Very few entries. There are four SL5QV (100 fsb) chips listed there that reached 1333 (looks like all required a good voltage increaes and very good cooling), and good cooling. SL5DV chips also did well.

What was encouraging was a poster saying, that 4 out of the 5 SL5QV chips he tested went to 1330 (voltage unknown).
Of course, its also not known if they were all from the same batch (they might have been if he bought them all together).

I'd love to see some benchmarks, though.
Anyone have any benchmarks of a overclocked 126 fsb/1260 mhz(100 fsb) chip, vs an overclocked 150 fsb/1125 mhz(133) chip? :)

[Ebola]

check out my thead 1240 and rising. there a bunch of benchmarks there. i have not put my chip into the database yet either.

[JetMech]

Originally posted by Falkentyne
I see your point. What I"m worried about (and believe it its happened enough), is getting a "dud" 1000e, that will only make it to 1200. That's 120 FSB. 120 FSB @ 1200 vs 150 FSB @ 1125? What would you rather pick :)

Also, the PCI divider kicks in at /4 @ 126 FSB (31 mhz pci @ 124 fsb option is too low for the drives, i like speed), so that's 1260 mhz. If I can somehow get a chip that can do at least 1260, (with close to default voltage), then i might have a shot at 133. But if I **CAN'T*, then I'm stuck with a slower chip.


I already have the 1ghz/133 (retail boxed cd0, unopened) sitting next to me, while I wonder what to do. I really want to stick it in....but..... Sounds like you need to pray to the chip gods. I wouldn,t worry to much about getting a 1000e because the stepping at this point is outstanding. 133fsb like you said will have everything at optimal speeds. That will give you 1330. You're in the envelop financially. If you could pair a 1000e with a Swiftech MCX370-0A I think your chances of getting where you want to go (overclockers heaven) will be damned good. Ebola there is doing what you're trying to do. Watch him.