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This is my last chance. I'm counting on you all

C

crisp82

Golden Member
This is it. I have had enough of my system, and am looking to overclock it. Here's the problem, if you've read any of my posts over the last couple of days, u'll know that I am a stubborn student who doesn't want to buy new bits. Now, I have spend the last 3 to 4 months searching everywhere and reading alot of posts trying to find out the necessary know to overclock my system, but I have reached the end of my trail. You guys are my last, and hopefully best, hope. Below is my system, and then a list of overclocks that I have managed so far. PLEASE HELP ME.

The System:

Gigabyte GA-686BX
Second-generation Pentium II (non-Deschutes I think) with a 0.25u design on a 100 Mhz fsb
Quantum Fireball 7.6EL HD
Matrox Millenium G200 (already running @ 110% of normal)
3Dfx Voodoo2 (already running @ 120mhz, but have reached 150mhz)
Aureal Vortex 2 8830
256mb PC100 (I think) Ram
Phillips 32x CDROM Drive

I am willing to try a certain amount of things, but I am not an electrical engineer, so building by-pass cirucuit and so forth are a little beyond me. All suggestions welcome though.



 
I didn't read your posts before.. so a little more details on your cpu would be nice..
I've been overclocking my celeron 300a to 450 for years... just bought a new system
waiting for a to arrive...
 
Celerons are easy to overclock by comparison. If you have a Celeron running a 66mhz fsb then you just cover pin B21 on the CPU and set the fsb to 100mhz and voila, an extra 150mhz to your CPU. My Pentium alrwady runs on a 100mhz fsb. The Pentium 2 comes with a multiplier lock which ignores any multilplier outside of it's range. Unfortunately, my Pentium's range is 3.5x - 3.5!.

My Pentium is a second-generation SECC2 processor on a 0.25 die.

I am going to increase the voltage to around 2.2 volts. any suggetsions?
 
Nope.

The only way you can overclock your processor is to increase the FSB.

The .25 micron Pentium II, or all Pentium IIs 333MHz and above, are Deschutes processors.
 
The problem with OCing P-IIs and the Katmai P3 is not the core itself but the cache chips, I`ve run P2-400s at 450 successfully but they fall over at 500 though don`t if you disable the cache (which slows them down terribly) , **you STILL haven`t said what CPU you have**, some OC better than others, my guess is that you`re on a hiding to nothing and are better off (depending on what speed CPU you have now) ditching the P2 and fitting a Slotket with the fastest Mendocino Celeron you can find for the right money.. the 400 clocks lovely @ 500 and there is a 533 too (be careful though there ARE Coppermine 533s which need low voltage and won`t like 2V very much) , a Mendocino tends to outperform a Deschutes clock for clock / bus for bus because of the full speed albeit 1/4 size L2 cache, that`s why the 300A @ 450 whipped the P2-450 everytime..

The best CPU to fit to the old 2V Slot-1 boards without expensive regulating slotkets is probably the Katmai P3 600B (133Mhz Bus - there is a non-B 100Mhz bus version too) but you can almost get a secondhand KT133A / Duron 800 board/chip for the prices asked for 'B' revision..
 
I'll get this right now.
My processor is a Slot 1 (SC242 connector) Pentium 2 MMX Deschutes 350mhz, on a .25 micron die, with a 512k cache (@ half speed) with an fsb of 100mhz.

I put the voltage up to 2.2, but gained nothing. Have you any suggestions as to why?
 


<< I'll get this right now.
My processor is a Slot 1 (SC242 connector) Pentium 2 MMX Deschutes 350mhz, on a .25 micron die, with a 512k cache (@ half speed) with an fsb of 100mhz.

I put the voltage up to 2.2, but gained nothing. Have you any suggestions as to why? >>



Sorry to burst your bubble, but you won't be getting much overclocking out of that cpu. The reason is the cache running at 1/2 the core speed. Celerons are easily overclocked because their L2 cache runs at full core speed. Believe it, cache speed makes the biggest difference. You could overclock the fsb beyond 100MHz for a little overclocking, but not by much.
 
You can try the 112 setting, this is one one which gets the P2-400 up to 450Mhz, it`ll take your 350 to 392Mhz, not a great increase, I doubt the cache chips could handle the 125Mhz setting and even if they and the RAM (if it`s PC100) could it`s still not up to Celeron 300A@450 performance level..

You are really in need of another CPU, scan Ebay for Mendocinos in slot adapters, a 533 would be ideal if run at 8 X 75Mhz to give 600 Mhz and they usually do it easily though I`ve never seen one even POST at 800Mhz 🙁
 


<< I'll get this right now.
My processor is a Slot 1 (SC242 connector) Pentium 2 MMX Deschutes 350mhz, on a .25 micron die, with a 512k cache (@ half speed) with an fsb of 100mhz.

I put the voltage up to 2.2, but gained nothing. Have you any suggestions as to why? >>

You must increase the Front Side Bus in order to increase the speed of the processor.

Increasing the voltage by itself does nothing.

As for multiplier locks, please read the FAQ: How do I unlock the multiplier of my Intel processor?
 
I increased the voltage to 2.6 (by accident) and now my system crash as soon as the bios has cleared and it accssess the hard drive. what have i done?

I am on the edge of throwing my system in the bin and buying a new one. Suggestions welcome as I am a poor student! I would want speed combined with easy o/c and good graphics.
 
For a new system, try a secondhand Duron around 800Mhz fitted to a KT133A board with a GF-2MX (NOT the MX200), that way you should be able to use your old RAM - the Duron uses 100Mhz BUS so your ram wil be ok if it`s PC100 and there are a lot of people selling KT133A based boards for next to nothing, the A-Bit ones are about the best for clocking.. Get something like a Volcano-7 Heatsink, it`s cheap efficient and takes a big fan.

As for your problem, reset the voltage to 2V if it`s a jumper system, reset the CMOS which should reset the voltage if it`s CMOS based as well as the rest and try again, also check all cabling and cards !! if no luck, try booting from a floppy, if it doesn`t get that far, disconnect the HDD and try that..
 
I have just taken my system apart. all looks ok, but I guess I won't know until I try it when it is back together!

Is it better to have an AGP or PCI gf2, as someone once gave me the choice of buying either?

why not mx-200?
 
Go for the AGP one, you`ll be glad of it when you upgrade to things new and it`ll perform well in a BX system as is 🙂 ..

MX200? -- Well imagine the old Ge-Force2 GTS (The original GF2) -- They halved the performance to make the GF2 MX, slightly upped the performance to make the GF2 MX400 then Halved the performance of THAT to make the MX200, so what it basically is, is 1/4 the performance of the old GF2-GTS - GTS cards themselves (way way way faster than even an MX400) can be had for very sensible money thesedays and original MXs can be had for real bargain prices so why cripple the thing with an MX200? ..

NVidia did it again with the GeForce-4 MX - it isn`t even a GF4 !!, has none of the extras that even the GF3 has and performs like a GF-2 Ti (which is a slightly faster Geforce-2 GTS) .. every so often they release cards that do little more than confuse, the MX200 and GF4-MX in my opinion are the ones to avoid as the MX200 is a turd and the far faster GF3-Ti200 can be had for GF4-MX prices ..

My verdict (for what it`s worth) is that if you`re on a real tight budget, go for a s/hand MX original, MX400 better, and if possible a GTS ----- BTW, Radeons are even more confusing 😀
 
Well the Athlon has the full size cache and the XP1600+ is a real bargain, there is a cutoff point where Athlons stop being Value, I think the jump in price from 1900+ to 2000+ is the largest or was at the last show anyway .. Though if your RAM is PC100 you may have probs with an Athlon as they need PC133RAM but don`t despair, there are VERY fast Durons about, the 1300 really moves!.. 🙂


If you`re in the USA (I`m not) apparently Newegg do refurb motherboards at good prices, just make sure that it`ll take your SDRAM AND allow you future upgrades such as Athlon-XP compatibility, maybe DDR sockets as well as SDRAM - the ECS K7S5a is a good choice here as it has two SDRAM sockets and two DDR ones, runs all current Athlon processors and the likes of Fry`s do bundles with durons and Athlons with big savings..
 
Thanks alot. I just put my machine back together, and it stops as soon as it tryies to boot from hard drive. But the hard drive powers on ok. what have i done?
 
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