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Andrew,

My oldies run a 2500+ barton thats been running @ 3200+ speeds for the last couple of years.

As the multipliers are locked on the bartons all you can do is fiddle with the fsb. Depending on your m/board and ram you should be able to simply jump the fsb up to 200mhz and push the chip to 1.8v and it will be stable.

The old amd's do pretty damn well, just need to get their core speeds up to 2200mhz (~3200mhz p4 speeds). Mines running at 2300mhz @ 1.9v.

yeah unfortunately my machine hangs if I go over 180DDR fsb .... how do you change the chip voltage? I don't want to blow up my PC :O .... I do have one of the best air/fan coolers around, so heat isn't a problem.

Andrew,

What m/board are you running?

The cpu voltage is in the bios. I wouldn't go pushing it past 1.8-1.9v as heat does become an issue, even with a top end air cooler.

You may also need to bump up the vdd (chipset voltage) to 1.7.

If its nforce2 it will automatically flick over to the 6th divider when you select 200fsb so there's no worries killing pci cards and what not.

I run one of these suckers with a thermal take smart fan II, i've attached the temp sensor on to the core via thermal epoxy, it works well, idling around web browsing nice and quiet, in games etc it ramps up. The fan pushes around 75cfm at full noise 4800rpm.. The HSF cost me ~$80 some time ago.

5i3ecazu.jpg

Before that I was running an old SLK-800 that I passed on to my parents machine.

that is one funky looking heatsink Joel!

I have an Epox 8RDA+ - yeah I am sure it had voltage adjustments in the bios now I think of it.

I have a Thermaltake Silentboost K8 headsink and fan, which keeps my CPU at around 45 degrees even under load!

Yeah I might play more with overclocking at some stage- probably when I am closer to upgrading. I had a bad experience with my old FX5600 video card - fried it when bumping the fsb up :O

The 8RDA+ will push 200fsb no problems, I suspect the stability problem you have encounted are due to the lack of cpu and possibly chipset voltage.

The 8RDA+ runs an AGP lock you won't have problems frying vid cards should you push the bus speeds too high.

The nforce2 boards don't run a pci lock but they do run dividers.

The boards dividers are setup as the following to achieve the 33mhz pci speeds.

133mhz FSB (266DDR) / 4 = 33mhz PCI

166mhz FSB (333DDR) / 5 = 33mhz PCI

200mhz FSB (400DDR) / 6 = 33mhz PCI

So anywhere inbetween those fsb speeds you are using the divider prior.

As you are running a 180mhz FSB (360DDR) the motherboard will be running the divisor of 5. So your PCI bus speeds will be slightly out of spec at 36mhz. 36mhz is no problems, I've only seen problems when pushing 42mhz but it really does depend on the card.

42mhz is impossible on our nforce2 boards UNLESS we run a FSB of 252mhz or 504mhz. 'Some' have had their nforce2 boards running such a speed but you will notice they tend not to run any pci cards and disable onboard sata/lan etc.

The most I've pushed is around 230mhz and that was after a VERY nervous VDD mod.

So either way with the Nforce2 board you won't be frying cards unless you manually jump in to the bios and ramp up the agp speed from 66mhz.

The nforce2 boards really are pretty easy and safe to overclock.

What board did you fry the FX5600 with? I'm assuming a via based board as its impossible with the nforce1/2 board unless you accidently bumped up the agp frequency. :O

thx for the info mate.

The video card I fried I was trying to ramp up the actual GPU speed of the AGP card - it was running 350Mhz, and I was told you could ramp them up to 400Mhz .... turns out they were wrong. I was ready to upgrade to my 6600GT anyhow - that's why I messed with it.

Yes vid card overclocking is nervous territory for myself..

I've pushed my 9700pro quite hard in the past with a huge old cpu hsf hanging off it but it is iffy, on a couple of occasions i've had it display garble so its running @ stock speeds.

The increase in gfx performance when overclocking the vid card is minimal and almost not noticable in games. In my experience anyway.

I had a good game of Hitman blood money.. I gave up after snipering 2 dudes and couldn't find the third.

Runs well though.

well, I am now running as a 3200+ (2205Mhz) and seems 100% stable. All I did was bump the fsb up to 200DDR, and upped the CPU voltage to 1.8v. Unfortunately I have no vdd adjustment in the bios, so thought I'd try CPU on its own. Seems to work. Thanks for giving me the courage :O

I was tempted to adjust the AGP voltage but chickened out.

Screenie attached of my new pi calcualtions - only knocked 3 seconds off, but better than nothing!

post-669-1148643090.jpg

lol...

Don't touch the agp voltage. bzzzzzzzzt :O

Only bits safeish to touch are the cpu (max 1.8-1.9), vdd (max 1.8, 1.9 with better cooling), and mem (max 2.9v).

Fingers crossed the std vdd works ok at 200fsb. :O

To improve superpi a little more the only way is to tighten up the ram and possibly push to 2300mhz. Which I think is out of the question, 2200mhz is all your going to get with a vdd ~1.6v. My board needs a vdd of 1.7v+ @200+mhz.

I must also add..

lmao at the deleted posts doc on the desktop of the screenie. :(

LOL too

hey andrew thought u said sum1 was banned @ the cruise the other day i saw them posting :S

the third dude to snipe is standing on 1 of the ferris wheel carages

Edited by Madaz

yes lol .... he is a bloody nuisance. I have kep a word doc of all his deleted posts for posterity.

yeah I did suspend his account for 365 days - well I thought .... not sure what happened. Maybe he is supposed to get a 3rd chance, so will let him be until he disrupts the peace again, then come down on him like a ton of bricks. If he behaves, then everybody wins.

I will d/l and have a look at the new Hitman .... sounds good!

I have been playing "The Elder Scrolls IV - Oblivion" for the past 4 hours - boy it is an addictive game!

I have been playing "The Elder Scrolls IV - Oblivion" for the past 4 hours - boy it is an addictive game!

How right you are! I have been addicted to this game for a month. There is just so much you can do and the world it increadible!!

A mate of mine plays World of Warcraft, says its more addictive then crack....im not going to touch it! :

yes lol .... he is a bloody nuisance. I have kep a word doc of all his deleted posts for posterity.

yeah I did suspend his account for 365 days - well I thought .... not sure what happened. Maybe he is supposed to get a 3rd chance, so will let him be until he disrupts the peace again, then come down on him like a ton of bricks. If he behaves, then everybody wins.

I will d/l and have a look at the new Hitman .... sounds good!

I have been playing "The Elder Scrolls IV - Oblivion" for the past 4 hours - boy it is an addictive game!

good thinking 99

WOW is weird, a mate down the road has it and LOVES it and says to me u MUST get it i went and watched him play it and didnt think much of it

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