Next Generation Emulation banner

1 - 20 of 55 Posts

·
Registered
Joined
·
52 Posts
Discussion Starter #1
Hi. ok I have another question. I want to overclock my PIII 750mhz cpu up to 850mgz. How can I achieve this? do I need to buy extra cooling fans or something? Will it damage my pc? Im really a newbie in this, so I thought you experienced guys could help me out here. Thnx.
 

·
Key To The Universe
Joined
·
2,712 Posts
You have to access your bios and then change either the fsb or the cpu's multiplier. Maybe your system will overheat. If so, try a new cooler or something to take out the heat. Check out the following site for more info:
http://www.overclockers.com
 

·
これはバタスです
Joined
·
6,338 Posts
Originally posted by Zephon
You have to access your bios and then change either the fsb or the cpu's multiplier. Maybe your system will overheat. If so, try a new cooler or something to take out the heat. Check out the following site for more info:
http://www.overclockers.com
With most modern CPUs you cannot change the multiplier. On AMD CPUs you can unlock it by connecting the L1 bridges(can be done with a lead pencil, dunno if it can be done anymore) but Intel CPUs are permanently locked down. The only thing you can change is the FSB.

Shadow_Caster: i assume your CPU is on a 100 Mhz FSB(100x7.5?). You can possibly bump it up to 133 Mhz, which will turn it into a 1 Ghz CPU. Modern mobos will allow you to adjust the FSB in 1 Mhz increments as well. After starting your computer, at the RAM testing screen press the `Delete' key. It should bring you to the BIOS and it should have an option to adjust the FSB. You can adjust the speed here. I don't know your motherboard model but almost all P3 motherboards have softFSB options(unless you have a specially modified OEM version). Only certain CPUs will be able to overclock though and if you're using PC100 RAM then I suggest you switch to PC133 RAM as well to match the FSB setting.

Overclocking can often lead to more heat generation and instability. The rule of overclocking is to adjust it to its maximum peak of efficiency(the highest speed it'll go without crashing or stalling). If you get errors loading Windows with the new setting then you need to downclock it a bit, and even after you achieve its maximum speed potential you should thoroughly test it (play Quake 3 for an hour or so or run intensive benchmarks) to make sure it remains stable. If not then you need to downclock it again or get a better fan/heatsink. The only thing you should never touch when overclocking is the core voltage. Increasing this can potentially fry your CPU. Another issue with overclocking is that your AGP and PCI buses also get overclocked and some AGP cards cannot handle the new speed. Newer motherboards have additional AGP divider settings and most modern videocards can usually handle it.
 

·
Nintendo Zealot
Joined
·
1,425 Posts
The only thing you should never touch when overclocking is the core voltage. Increasing this can potentially fry your CPU.
I wouldnt agree with this (well I do up to a point/unless its different for intel chips) as with my cpu @ default voltage I cannot reach any of the overclocked speeds I've used.
If I boot with 9x150 @1.7v I wont get any sort of stability and I'll crash soon after but if I up the voltage to 1.85v my computers very stable.
The downside to this is my cpu runs hotter with the extra voltage but if you are under taking any overclocking then you really should get a higher rated HSF or your asking for trouble.
If I was you I wouldnt just bump straight up to 133mhz as its doubtfull your cpu will even boot at that speed (997mhz) without a bit of luck and a top HSF.
Just up it a little at a time unless you dont mind reseting the bios,but bear in mind theres plenty of things that can hold you back (memory quality/PCI card tolerences etc)
JAZ
 

·
Key To The Universe
Joined
·
2,712 Posts
That's right. Only by increasing the voltage core you can achieve higher levels of overclocks. However, there are some cpus that has the voltage core locked.
 

·
Registered
Joined
·
52 Posts
Discussion Starter #6
Yep I got pc133, so I shouldnt have any problems w/that. Ill try getting the fsb up to 133. hopefully, it wont get too hot. If it does though, Should I buy one of those bigg ass fans for monster CPUs, or another one my current fan. I know I sound cheap, but in my country computer stuff costs about 3-4 times what it would cost in the us. (A geforce1 costs more that 400dollars in my country A.K.A 7,600 Pesos)
 

·
これはバタスです
Joined
·
6,338 Posts
Yeah, the Pentium 3 1000 Mhz processors use a default voltage of 1.7 v, as opposed to the usual 1.65 v of slower P3s. Voltage increases are required to go higher speeds but they're still potentially dangerous. When I was overclocking my computer I couldn't reach the higher speeds without voltage increases and I generally try to stay away from modifying the voltage setting, as such my system is at its default speed. Still, my old Celeron was able to go from 366 to 500 without any voltage increases and I hear the Pentium 3 processors (with cC0 steppings) can overclock to a FSB setting of 150 without additional cooling(maybe slight voltage increase). Voltage increases of 0.1 - 0.2 should be alright, but beyond that could be trouble.
 

·
Registered
Joined
·
265 Posts
p3 750 oc'ed to 1000? I'll be surprised if it even gets into windows, let alone stable. At least, with the cooling technology he has.

It's amusing you look down on raising the Vcore, and yet both of the top x86 cpu manufacturers use that very method (among others) to raise yields.
 

·
Registered
Joined
·
680 Posts
there are people who still using an old P3 for overclocking?!!? well that surprises me ...

just kidding ;)
 

·
これはバタスです
Joined
·
6,338 Posts
Originally posted by Phuzzi
p3 750 oc'ed to 1000? I'll be surprised if it even gets into windows, let alone stable. At least, with the cooling technology he has.

It's amusing you look down on raising the Vcore, and yet both of the top x86 cpu manufacturers use that very method (among others) to raise yields.
The Coppermines are outstanding overclockers, although it all depends on the model and the week it was manufactured. The later models are known to scale up to very high speeds. Ones that can go above 133 FSB (without voltage increases) are pretty rare and you'd be lucky to find one. Still, my Celeron went from a 66 FSB to 91(an increase of 38%) without voltage modifications or extra cooling, and it was built on the now-inferior 0.25 micron transistors. Increasing from 100 Mhz to 133(an increase of 33%) shouldn't be too much trouble for a Coppermine, being built on a more efficient 0.18 micron design. Still, only certain rare models can do it and I think it'd require a bit of a voltage increase anyways, since the P3 1 ghz needs 1.7 core voltage to function.

Intel raised the core voltage on the P3 1 ghz because they couldn't perform without the additional power, due to the fact that the P6 is an aging design. It's pretty much reached its limit and Intel just tried to squeeze the last bit of life out of it, well, at least until the Coppermine-T or Tualatin is released. It was a desperation tactic to get back on even ground with AMD. Previously Intel's always kept the core voltage the same within each generation of processors. Well, at least they're getting a healthy dose of competition from AMD.
 

·
playing FGO
Joined
·
10,133 Posts
:confused: :confused: :confused:

wow, that's like....real confusing tech stuff.

anyway, since we're on the topic of overclocking, i'd just like to ask if it's safe to overclock my OLD box (PII 266) to around, say....300 or 333?, with an intel board that i forgot what type, but it's slot 1 and has 3 ISA (what the..?) slots, and uses EDO/BEDO for ram. I've never overclocked before, so i guess this is a really lame newbie question i guess. :emb:
 

·
Registered
Joined
·
52 Posts
Discussion Starter #12
Hmmm..... Im gonna try to overclock my pII to 1ghz. Ill just get the voltage up to 1.7 and the fs up to 133. hehehe, this is gonna be cool.... Btw demigod, WTH is a PIII coppermine?
 

·
これはバタスです
Joined
·
6,338 Posts
Coppermine is the codename for the enhanced P3 processors. All of Intel's P6 and future processors have codenames(P6 original=Pentium Pro, P2 original=Klamath, P2 enhanced=Deschutes, Celeron=Mendocino, P3 original=Katmai, P3 enhanced=Coppermine, Pentium 4=Willamette). The original P3s used the Katmai core(they were pretty much P2 Deschutes with SSE). You may also remember that the Athlon came along at this time and blew the P3 out of the water. Intel then improved the P3, built on a smaller 0.18 micron(which the Athlon was already using) and on-die L2 cache. The P3 processors ending with `E' (e.g. P3 600E) use the Coppermine core. (BTW, the ones ending with `B'[e.g. P3 733EB] use the 133 Mhz FSB, which cost less but aren't very good for overclocking). The Coppermines were second in the 1 Ghz race, but they humiliated AMD with its superior performance. Then AMD made similar improvements to the Athlon and thus was born the Thunderbird, or T-Bird. The performance of the Coppermine and Thunderbird are very similar but the Athlons are a lot cheaper.

Intel will soon introduce a further enhanced P3 (codename: Tualatin) which will be built on a smaller 0.13 µon design (higher speeds) and possibly 512 KB of on-die cache and in a couple of months they'll also introduce their mainstream P4 processors(Northwood). AMD's also improved the Duron and Athlon and incorporated Intel's SSE into their K7 core(Palomino). And thus the constantly struggle for processor dominance goes on...
 

·
Registered
Joined
·
265 Posts
'The Coppermines are outstanding overclockers, although it all depends on the model and the week it was manufactured'

Exactly. And i'm willing to bet that his won't reach a gig. They don't all overclock well, let alone straight to the limits of it's architecture. Also, having never overclocked before and going straight for a 250Mhz overclock is not good overclocking practise.

I know exactly why the voltage was raised, i already said what effects it has. Why you reiterated that i'm unsure. AMD have also done the same thing with their cores. It's common practise, overclockers just push that bit further to reach decent overclocks. Changing the Vcore is not drastically bad as long as you know your limits.
 

·
Key To The Universe
Joined
·
2,712 Posts
Originally posted by Demigod79
Intel will soon introduce a further enhanced P3 (codename: Tualatin) which will be built on a smaller 0.13 µon design (higher speeds) and possibly 512 KB of on-die cache and in a couple of months they'll also introduce their mainstream P4 processors(Northwood)
Intel has already released the Tualatin a few weeks ago, and is has only 256KB L2 cache. It is the 1st to have the 0.13 core which means it can reach higher speeds with less energy, producing less heat with a smaller cost(theoretically).

November will be release of the P4 Northwood. Actually they have already made a demonstration of it(a 3.5GHz Northwood), but it seems that this year the P4 will only reach 2.2GHz. It will be a 0.13 processor and will not be compatible with the actual P4 motherboards. it will have 512KB L2 cache.
 

·
Registered
Joined
·
265 Posts
Intel are also manufacturing Tualatins with 512Kb cache. Pretty much any hardware site confirms this.

Motherboard manufacturers have stated it should be fairly easy to make a socket converter for the new p4's, to make them backwardly compatible with existing p4 mobos.
 

·
Key To The Universe
Joined
·
2,712 Posts
Originally posted by Phuzzi
Motherboard manufacturers have stated it should be fairly easy to make a socket converter for the new p4's, to make them backwardly compatible with existing p4 mobos.
Even if the sockets become compatible, will the actual chipsets work with the Northwood?
 

·
Registered
Joined
·
265 Posts
Motherboard manufacturers have experience of the new chip and socket, and they say an adaptor is possible. Whether Intel will want them to market such a device is another question entirely.
 

·
Key To The Universe
Joined
·
2,712 Posts
Does anybody know when the Athlon Palomino will be released? What new features will it have?
 
1 - 20 of 55 Posts
Top