O'Clocking an Old PIII 1 gig

desertbluesman · 03-07-2004, 07:03 PM

I have been running a PIII 1 gig on AsusTek CUSL2-C for several years.

Now with Sonar 3.1.1 (A recording software) I am bumping up against the PIII's limits easily.

How far can I safely o'clock it ? 1.3 gig?

I need more oomph and I am afraid of upgrading to the P4 because of a phenomenon called denormalization which occurrs when very small numbers are sent to certian Plug Ins inside the sequencer (Sonar) on a P4 cpu board. I really do not want to go AMD.

Any advice on the o'clocking? Extra Cooling necessary? the PIII runs at 1 gig steady at 80 degrees F, 90 under a heavy workload.

Thanks

dbm

Darkfalz · 03-07-2004, 07:45 PM

Every chip is different. Every board is different. So the only way you'll know is to try it yourself.

I have a 700 (7x100) I run at 933 (7x133). Your problem is probably that you have the EB version rather than the E, meaning your FSB is already 133 (7.5x133). This is probably going to be the biggest factor in overclocking it, that your RAM won't be able to handle the higher FSB.

If you have a 10x100 version (is there such a thing?) then I'd say you'd probably be able to run it at 10x133 if you have PC133 in there. So long as you're using a decent P3 cooler (GoldenOrb etc.) I doubt you'll have much luck with the stock Intel P3 HSF, because it sucked.

rangerblueshirt · 03-07-2004, 10:35 PM

I was using a CUSL2 and a 1GHZ p3 for about 2 years. If I remember correctly I had the FSB somewhere between 155 and 160. I didn't even have to raise the voltage to get it to run stable. I was using an ALPHA cooler with a 60mm Sunon fan blowing away from the MB. I was also using Corsair PC150 CL2 Ram. My friend had the same set up as me and could not get his over 145 FSB unless he gave it some crazy amount of extra voltage. But as Darkfalz said, each CPU is different and the only way to find out for sure is to try it out.

desertbluesman · 03-08-2004, 06:48 AM

Thanks for taking the time to respond, I am going to read up on the whole process today and will post back later to see what happened.

I just may try the 3.2 gig Northwood and the P4C800-E Deluxe and two gigs RAM and see if I have the denormalizatiobn problem, It may have been with earlier P4 CPU's

dbm

garnet_abx · 03-08-2004, 07:36 AM

There were 2 versions of the P3 1000 flip chip. The common version, like I have, is 7.5 multiplier, 133 fsb. Don't expect overclocks better than 1200 mhz and that will require a very "good" chip, good ram and a good aftermarket hsf. The other chip was a 10 multiplier, 100 fsb and would clock higher....in the 1300+ range.

desertbluesman · 03-09-2004, 04:27 PM

Thanks I have the 133 front side bus model. I am just going to upgrade my computer to a whole new one case and all, and keep this one for office and internet tasks. As is

03-07-2004, 07:03 PM	#1
desertbluesman Registered User Join Date: Aug 2001 Location: "Town of" Surprise, Arizona Posts: 39	O'Clocking an Old PIII 1 gig I have been running a PIII 1 gig on AsusTek CUSL2-C for several years. Now with Sonar 3.1.1 (A recording software) I am bumping up against the PIII's limits easily. How far can I safely o'clock it ? 1.3 gig? I need more oomph and I am afraid of upgrading to the P4 because of a phenomenon called denormalization which occurrs when very small numbers are sent to certian Plug Ins inside the sequencer (Sonar) on a P4 cpu board. I really do not want to go AMD. Any advice on the o'clocking? Extra Cooling necessary? the PIII runs at 1 gig steady at 80 degrees F, 90 under a heavy workload. Thanks dbm __________________ dbm http://www.soundclick.com/bands/page...?bandID=143231 http://www.soundclick.com/bands/page...fm?bandID=6621
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03-07-2004, 07:45 PM	#2
Darkfalz Join Date: Jan 2004 Posts: 605	Every chip is different. Every board is different. So the only way you'll know is to try it yourself. I have a 700 (7x100) I run at 933 (7x133). Your problem is probably that you have the EB version rather than the E, meaning your FSB is already 133 (7.5x133). This is probably going to be the biggest factor in overclocking it, that your RAM won't be able to handle the higher FSB. If you have a 10x100 version (is there such a thing?) then I'd say you'd probably be able to run it at 10x133 if you have PC133 in there. So long as you're using a decent P3 cooler (GoldenOrb etc.) I doubt you'll have much luck with the stock Intel P3 HSF, because it sucked. __________________ OS Microsoft Windows XP Professional Service Pack 2 CPU Intel Pentium 4 3.0 GHz with HT (Northwood) Motherboard ASUS P4P800 Deluxe RAM 1 GB Kingston DDR400 3-3-3-8 Dual Channel Display NVIDIA GeForce 6600 GT 256 MB AGP Monitor 17" Mitsubishi Diamond View 1770 FD Sound SoundMAX Digital Audio Speakers DKL 3D-650 NIC 3Com Gigabit LOM Modem Marconi FLX Stream-ISG HDD Maxtor DiamondMax Plus 9 120 GB HDD Maxtor DiamondMax Plus 9 200 GB Optical SONY CRX300E CD-RW/DVD-ROM Optical SONY DWD18A DVD±RW Case AOpen KF45A-P4 PSU LC-B400ATX Keyboard Microsoft Internet Keyboard Mouse Microsoft Wheel Mouse Optical
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03-07-2004, 10:35 PM	#3
rangerblueshirt Waiting.... Join Date: Nov 2001 Location: New Jersey, USA Posts: 322	I was using a CUSL2 and a 1GHZ p3 for about 2 years. If I remember correctly I had the FSB somewhere between 155 and 160. I didn't even have to raise the voltage to get it to run stable. I was using an ALPHA cooler with a 60mm Sunon fan blowing away from the MB. I was also using Corsair PC150 CL2 Ram. My friend had the same set up as me and could not get his over 145 FSB unless he gave it some crazy amount of extra voltage. But as Darkfalz said, each CPU is different and the only way to find out for sure is to try it out. Last edited by rangerblueshirt : 03-07-2004 at 10:47 PM.
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03-08-2004, 06:48 AM	#4
desertbluesman Registered User Join Date: Aug 2001 Location: "Town of" Surprise, Arizona Posts: 39	Thanks for taking the time to respond, I am going to read up on the whole process today and will post back later to see what happened. I just may try the 3.2 gig Northwood and the P4C800-E Deluxe and two gigs RAM and see if I have the denormalizatiobn problem, It may have been with earlier P4 CPU's dbm __________________ dbm http://www.soundclick.com/bands/page...?bandID=143231 http://www.soundclick.com/bands/page...fm?bandID=6621
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03-08-2004, 07:36 AM	#5
garnet_abx SEXpert Join Date: Feb 2001 Location: Nova Scotia, Canada Posts: 16,182	There were 2 versions of the P3 1000 flip chip. The common version, like I have, is 7.5 multiplier, 133 fsb. Don't expect overclocks better than 1200 mhz and that will require a very "good" chip, good ram and a good aftermarket hsf. The other chip was a 10 multiplier, 100 fsb and would clock higher....in the 1300+ range. __________________ Abit NF7-S 2500+ mobile 1.86g@2.4g OCZ 3500 EL Dual Channel Memory BFG GeForce 6600 GT OC My Computer Compare - 3DMark 2003; 3DMark2001 Folding will help save lives.........................maybe your own!
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03-09-2004, 04:27 PM	#6
desertbluesman Registered User Join Date: Aug 2001 Location: "Town of" Surprise, Arizona Posts: 39	Thanks I have the 133 front side bus model. I am just going to upgrade my computer to a whole new one case and all, and keep this one for office and internet tasks. As is __________________ dbm http://www.soundclick.com/bands/page...?bandID=143231 http://www.soundclick.com/bands/page...fm?bandID=6621
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