Chipset Cooling ??

[jaze]

I'm going to be trying to overclock a P4 1.5 to 2.0 on an ASUS P4B. I've purchased a Swiftech MCX478 (http://www.swiftnets.com/MCX462.htm), as the CPU cooler.
Would a chipset cooler, Thermaltake Tiger 1 (http://www.thermaltake.com/tiger.htm) give me a better chance for success? Would I get the same results adding a 40 X 40 mm fan to the factory chipset heatsink?
-JaZe

[AntmanMike]

I very highly doubt you will acheive 2ghz on a 1.5 with air cooling. My reasons are:

I have attempted it WITH a new i850 heatsink (i850s and i845s are the chipset your reffering to, the so called northbridge, or memory controller), and a Swiftech MC462-a (the previous version before MCX462) with Arctic Alumina compound. I was using a 1.7ghz s423 (s423 and s478 differences shouldn't).
I was able to reach 1.9ghz.

I doubt the RAM that the i845 supports will be able to handle that FSB. i850s (RDRAM) have a dual quad 100mhz speed. This allows them to handle higher speeds. the i845 has slower RDRAM, newer ones supporting DDR. The P4B supports PC133 SDRAM. It is VERY slow, and I doubt it will reach an FSB of 133.3, with the way the Pentium 4 FSB runs (quad 100mhz)

3. Air cooling simply can not OC a P4 that far.

[jaze]

Well, that certainly sounds negative.

You seem to know what you're talking about, but 2 people in the CPU database have accomplished this OC, one says he used air cooling. The other person (I.D. 2005) didn't give any details except the P4B.

I'll keep you posted when I receive & assemble the MoBo & coolers.
-JaZe

[Maximus Nickus]

Its possible, just depemds on ya chip, cooling the chipset won't give many gains, as long as your case has very good air circulation its not impossible, but I'd set 1.8 as a achievable target!!!!

[jaze]

All is not completely lost, then.

My case is a full tower, 5 5-1/2" bays. A Plextor UW CDROM, 2-36.4GB SCSI LVD drives. 2 18.2GB removable drives used sporadically, each with a 40mm fan that're always running. the other 2 bays have hard drive coolers installed (w/o any drives) each having 2-40mm fans. I have an 80mm fan in the front, and 2-80 mm fans in the back in addition to the 92mm fan that comes with the power supply.

I have successfully overclocked a K6-2 300 to 400, a Pentium Pro 333 to 500, and a Celeron 366 to 550 in this case on other occasions.

I only ask about the chipset cooler because I want every edge short of liquid or Peltier cooling. If I'm spending the money for a Peltier, I may as well just buy the 2GHz in the 1st place.

-JaZe

[Grande Juan]

I'd have to agree with nick on that. I've gone up to 1.83 before but temps, started getting up there. Still trying to find a really good HS for the 478pin. There does'nt seem to be a lot around yet. Anyway good luck and keep us up to date on your progress.:beer:

[AntmanMike]

Grande, try the Swiftech MCX478 (mPGA-478 variant of the MCX462). Info is at www.swiftnets.com, k? They are the best. He was smart in buying one, but I still doubt he will get very high on a 1.5.

[ButcherUK]

Originally posted by jaze

I only ask about the chipset cooler because I want every edge short of liquid or Peltier cooling. If I'm spending the money for a Peltier, I may as well just buy the 2GHz in the 1st place.

But then you'd want to get as much as possible out of that, right? :)
Extreme cooling isn't a money saving device, hell if I wanted to say money I'd just buy a Dell or something. :p

[Maximus Nickus]

You mentioned that your case had 1 80mm intake and 2 blowing out and loads of hdd coolers.....humm

My case has 4x50CFM 80MM fans blowing in, 3x45CFM blowers, 45cfm PSu fan, 4 50cfm 80mm blowing out, 80mm 50 cfm on HDD, Alpha 8045 with a 70CFm Delta, 40CFM delta on the northbridge, 2x delta on the memory!!! + HSF and fan on southbridge! + Hsf's and Fans on G-Card and ect...

That now gives me such good cooling (over 550CFM!!!) that everything stays @ ambient except the CPU!!!

[Grande Juan]

Hey thanks antman that does look like the best HSF I've seen so far just wish it was all copper and a little quiter, and a lot cheaper,Oh well, Jaze did you put that Swiftech on there yet? What's the temp. difference from the stock HSF? 2.0 does seem a far stretch for a 1.5 P4B but that would be great, keep us up to date I for one would like to see it done!:)

[AntmanMike]

MC 462 test:
Socket 423 Pentium4 1.7ghz
pre-temp: 110
post-temp: 91

[jaze]

Holy underwear, Nick! Your PC must sound like a jet turbine when it's running.

I just received the CPU late today, so I'll get around to the installation by the weekend at the latest. The Tiger 1 (http://www.thermaltake.com/tiger.htm) chipset fan by Thermaltake isn't even being distributed until late December, so I'll just add an old 40mm pentium fan to the chipset HS for now.

I'm not planning to install the retail HS, so I'll never know the temp of that. ASUS already has BIOS 1.05 upgrade out, so that's a must.
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Help me along in this overclocking... Is this the right sequence?

1) I'll start the CPU at 1.5GHz & 1.75v (factory settings), then step the FSB in increments of 5 MHz until the PC becomes unstable or won't boot.

2) I'll step up the voltage in the smallest increments until it's stable again.

3) I'll let it run for a day at those settings, then repeat the steps again until I reach 2GHz or 1.85v, whichever comes 1st.
I'm guessing here, but I think that's about the maximum voltage without frying the CPU.

[AntmanMike]

Actually, i was going to put a jet turbine from an old 707 on my PC. Couldn't find one though... 100000000000cfm droooooool. Also, there is a reason that the MCX462 (and variants) are not all copper. It uses a cold forging method, which is why there are pins. It would be much more expensive and not as efficient to use all copper, and in this manner, it is actually better to have aluminum pins. It involves chemistry, which i have not taken yet.
Also, does anyone have a spare GF3? I didnt ratio enough Alumina compound into my adhesive (sorry Nevin :/ ) and it stuck the BLORB to my Hercules Prophet 3...

[AntmanMike]

You are missing the main factor here, HEAT. Your swiftech cant dispel all the heat. You will be blocked at around 1.7 to 1.8ghz by heat.

[Grande Juan]

Sounds like a good plan Jaze. Ran mine for about 30mins. then kicked it up to 110fsb and 1.85v been running fine for 2 months. I need better cooling soon. I've run at 122fsb for about an hour that was HOT. With your cooling it should'nt be a problem. Keep us posted. Also you might check in the intel cpu forum, but I think 2.0v is easily done. I still don't think 2.0MHz is a reasonable goal but what the hey good luck.

[Grande Juan]

1.8 should be no problem

[AntmanMike]

...I still don't think 2.0MHz is a reasonable goal but what the hey good luck. Grande Juan

I don't think he will have a problem reaching THAT speed... I don't think he can underclock though.

[Grande Juan]

Typo sorry meant 2.0 GHz

[Yodums]

Originally posted by jaze
I'm going to be trying to overclock a P4 1.5 to 2.0 on an ASUS P4B. I've purchased a Swiftech MCX478 (http://www.swiftnets.com/MCX462.htm), as the CPU cooler.
Would a chipset cooler, Thermaltake Tiger 1 (http://www.thermaltake.com/tiger.htm) give me a better chance for success? Would I get the same results adding a 40 X 40 mm fan to the factory chipset heatsink?
-JaZe

Let me just say that, your chipset cooler only pushes 5.1cfm. I would recommend a crystal orb or a blorb that is lapped, or an old 4.86 coolllller.

[AntmanMike]

tsunami I think we already got passed his question in the last 20 posts... your answer truly was not relevent anymore.

[jaze]

I HAVE installed an old 486 cooler on the chipset for now.

What does lapped mean?

Right now, I'm trying to figure out how to remove the Intel HS frame without tearing up and permanently damaging the plastic holding pins. The MCX478 mounts directly into those holes on the MoBo.

BTW: I've seen some 80mm to 60mm, and 120mm to 60mm funnels for CPU heatsinks. Has anyone seen a 60mm to 40mm funnel?

One of the Techs at a local Computer store got 2GHz with basically the same setup I'm using. He's very secretive, though. He offered to do it for me for cash. I told him what I thought of that idea.

-JaZe

[Maximus Nickus]

Yeah he'd probably charge you $500 and buy a 2ghz P4!

I think 1.8 is acheiveable but you may get higher with a volt mod.

Although then your looking at watercooling....

Yes my PC sounds like a Tornado when its on and when I'm at my desk all I can feel is a cool breeze where the air coming out along my wall.:D

But hey if its louder it gives people the impression that its better! I mean howevers seen a quiet Ferrari? The sound of it is why people buy it!

[AntmanMike]

Lapping is smoothing the base of a heatsink with sandpaper.