Just got my new P3-S 1.26 running - major OC!!

[Wiz]

This cpu is so sweet, I can hardly believe it.

I just put the P3-S 1.26ghz cpu w/512k cache into my Asus CUSL2-C mobo.
I updated the bios to the latest, 1014c and it recognizes the new microcode of the Tualatins!

I got the adapter installed, then put the cpu in and the HSF but then no boot

Looked at the jumpers, the packaging showed the jumpers for intel chipset & it wasn't working.

So I set the jumpers for the other setting on the package and reinstalled - booted great!

Set the bios and booted into Windows at 1260 mhz, all looked good.

Restarted & set it to 140 fsb, booted into Windows no problems!

Restarted and set it at 150 fsb, again booted into Windows no problems! ;D 1425mhz!!!

Upped the volts a little and set it to 160 fsb - no boot

Reset & set the fsb at 155 fsb, 1472 mhz cpu & it booted right into Windows no problems!!!

So I decided to let it sit and run seti for a while, maybe after it burns in for a while I'll bump the fsb up a little more

Next up is the Cel 1.1A in the P3V4X hopefully at 155fsb (1705mhz) - as soon as I get that Slot -T adapter from the UPS man!!

 

[titanmiller]

Cool! let us know the wu time when it gets done

 

[deerslayer]

Great!

 

[Wiz]

The first WU had been running an hour with the old CPU so the slower time averaged with the faster.

Here are the stats for the first unit done:

AR : 0.523
CPU Time: 4hrs 18minutes 09seconds

 

[Wiz]

Second CPU done, this is even better!

AR = 0.418

CPU Time: 3 hours 42 mins 17 seconds



Now I know this isn't great when compared to your hopped up super charged ultra expensive 2800XP or P4 3Ghz but remember...

This is a P3 cpu!!!

This is doing on par with my AMD 1800XP, which did this time with a WU like that one:

AR = 0.418

CPU Time: 3 hours 48 mins 04 seconds

So this is an upgrade to an existing system that took very little time - no OS reinstall & all working really well & considering I will sell the old bits it also didn't cost me much

Next up is a high AR unit, I'm tempted to stay up & see what it does but I guess I'll check in tomorrow morning!

 

[ColinP]

Very nice... That's faster than my 2.0Ghz Xeons (256k cache)..



Col

 

[Smoke]

Very nice WIZ!

 

[Wiz]

It's done two more, here are the stats

AR: 5.969

Time: 3 hours 05 minutes 47 seconds


AR: 0.417

Time 3 hours 41 minutes 47 seconds


/me very happy!!!

 

[Assimilator1]

Nice times!

My XP1500@1.52GHz (145MHz FSB,CAS 2-2-2,Turbo) does 0.417 WU's in about 4hrs with VHAR in about 3.5hrs,so your PIII is faster!:Q ,guess it must be the 512k cache.
Nice overclock btw

Re the Cel 1.1A ,you've got almost no chance of hitting 1.7GHz ,1.6GHz maybe.
My one wouldn't go over 1.46GHz ,though I havent tried higher voltages yet ,but it is running at 1.57v atm.

 

[Wiz]

Thanks Assim1,

I'm not afraid to apply a little more voltage to the situation. Considering the expected lifespan of a cpu far exceeds it's practical usefulness.

We will see what I can get out of the Cel 1.1A, the P3V4X mobo has some pretty nice overclocking features.

I know I'm not going to come close to the seti times I am getting out of the P3-S, but I know it will be improved over what I'm getting now!

 

[oldfart]

I posted this in your other thread:

It runs like a dream at 155 FSB, CAS 2-2-2 & 5/7 timings, for 1.472Ghz

As far as I know, all xUSL2 boards have a bug where the cas timings go to slowest and AGP goes to 2X @ 140 and above FSB. There is a hacked bios available from X86-secret.com that fixes it.

 

[Electrode]

Nice OC!

 

[Wiz]

Oldfart, do you think that bug is in their latest bios as well? I have the 1014c loaded now but I'm about to flash the tweaked 1012 just in case.

 

[oldfart]

As far as I know, its in every BIOS they made. I haven't messed with a CUSL2 in awhile though. I had the bug when I had mine. A GF3 would lock solid when going into a 3D app every time. The BIOS fixed it. I would have thrown the board in a pail if it weren't for that hacked BIOS fix. After you flash it, the switch to turn the fix on is the Trend ChipAway bios virus protection.

 

[JWMiddleton]

Wiz, Just for clarification: Are you running CAS-2 PC133 DIMMs? I have an ASUS CUSL2 board with a PIII-700 running at 935MHz. It does a WU in a little over 6 hours.

I just checked and found that Pricewatch shows a Pentium III 1.26GHz w/512K @ $167. You could get an overclockable Athlon XP1700+ and a mobo for that price. Am I missing something here? Just wondering!

 

[Wiz]

JWM, yes - you are missing the FS forum here on AT You can get cpu's for much less. Then you can sell the P3 700 for at least $50 like I just did, making the out of pocket pretty insignificant.

Also the biggest reason to do it this way - no OS reinstall. W2K server can be a bitch to install & configure, along with all the applications.

So it's not the best answer for everyone but it works for me

Yes, it's CAS 2 PC133 ram.

 

[InverseOfNeo]

The 1.26GHz Tualatin P3s have been known to be able to OC to around 1500Mhz. Your results are not surprising to me but congrats anyway. Go TeAm!

 

[Wiz]

Oldfart - what a mistake that was

I went from a perfectly stable system running really well to BSOD's including "Inaccessable Boot Device" and others.
What a royal PITA!!!

Reflashed to 1014c and pure golden stability came right back

Guess the tweaked bios isn't for everybody!

 

[SlangNRox]

Makes me wish I waited on upgrading to a p3 1ghz. I didn't realize there where p3-s adaptors so I could run it on my bx board.

 

[Wiz]

You can sell the 1ghz and buy a cel 1.1A + adapter and probably at least break even.

 

[Wez]

may I ask how you are overclocking your CUSL2-C? I can't lock the PCI bus speed on the bios version I'm using. Was that added in a bios update? Plus, the latest bios update the website shows is 1009??? (nm...found the beta bios 1014)

oh yeah...I didn't think upgrading my p3 board was worth it because an Althon XP1700+ that will overclock to over 2800+ speeds was a heck of alot cheaper than a Tualatin-S plus adapter...then again, ram was expensive, but the upgrade path is better.

 

[Wez]

hmmm...just updated my bios and no beans...the FSB\Memory\PCI ratios are very limited. My PCI devices don't like being overclocked much...suggestions?

 

[Wiz]

Hiya Wez, as I'm sure many things can limit your OC.

Your cpu might not have the headroom
Your ram might not be up to it
Your PCI devices might not be able to handle the higher speed
etc...
Have you lapped & put Arctic Silver under the green heat sink on the mobo?
Mine won't go above a 39mhz PCI, it becomes unstable.
However, at 39 mhz PCI I get 155 mhz FSB
Apparently I can't run 5t/7t at that speed - tried it with the hacked bios & it went goofy.
However I believe I get more bang with the higher FSB than I would changing the Tras/Trc to 5t/7t
I think all you can do is set it at something you know is stable then try bumping it (FSB) up one mhz at a time.
You might have to increase voltage to the cpu to get stable OC.

Of course, YMMV & you take your own risk & I can't be responsible for your equipment should you decide to try any of my suggestions...

 

[Assimilator1]

Wez?Wiz? & you have the same icon!

Wez
PCI bus locking is a very new feature with some of the latest chipsets ,the 815 chipset does not have this option.

oh yeah...I didn't think upgrading my p3 board was worth it because an Althon XP1700+ that will overclock to over 2800+ speeds was a heck of alot cheaper than a Tualatin-S plus adapter...then again, ram was expensive, but the upgrade path is better.

I think you've missed the point ,if you can get a PIII T 2nd hand for a cheap price or get a Celeron T(which is virtually a PIII),then a Slocket T that is far cheaper than buying a new mbrd,CPU & DDR RAM.It is true that the new PIII T prices are ridiculously expensive though:disgust:.

As an example ,the cost of my parts were
Cel 1.1A £31
Slocket T £22
Total £53 (+ delivery)

XP1700 £40 !:Q
Asus A7V333 £61
256Mb Generic PC2700 £27
Total £129 (+delivery)

Not to mention the possible need for a better PSU.You are right in that it leaves a better upgrade path (the other has none) but it is far more expensive

 

[Wez]

How do Celeron Ts compare to normal PIIIs? I know that some pipelines or something were disabled before the CeleronTs, but what about afterwards?

I was just trying to get extra juice out of my pIII 900mhz fsb 100mhz. Alas, it will go no higher than 112/112/37 stably. My ram should do pc133 because because it's mushkin rev1.5 ram rated at 133. Just wanted to have some fun...that's all.

I took care of my PSU unit a while back by getting a nice 350watt enermax...though that might be small by today's standards...

I guess Wiz and I do have the same icon...USA!