Overclocking fun....

[ALBPM]

Hi Parodox,

You may have the faster memory on your Vanilla G400 too.

Paul

[Maggi]

Hey Lukey ...

what about a little update on your efforts ?

I really wanna know, you know ?



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Cheerio,
Maggi

Asus P2B-S @ 112MHz FSB - Bios 1010 final
Celeron300A @ 504Mhz
128MB 7ns SDRAM
G400 DualHead 32MB SGRAM @ 201 MHz memory clock

[Lukey]

Hey guys,

Well after much effort, an extra 4 486 CPU fans installed over the exhaust ports in my system (going with the old saying "Out with the old, in with the new!") still hasn't helped much, after about 4hours of HL or Unreal the core temp is at 40C and the case at about 42C. I'm getting another fan that plugs into a spare expansion port that I will placec above the V2's (these are the babies that cause the real overheating prob, without them in the case it stays at around 36C all the time, with em running, it gets hot real quick!)

I don't ever think I'm gonna go above 413 with the 333 I've got now, I can get it to boot fine into Windows, run little benchmarks and that, but as soon as I do anything intensive (like an Unreal timedemo) it just crashes out with a GPF, checking the core temp after crash it can still be relatively cool (around 36C) where at 413 the CPU can run for ages at around 41C without a hitch... I don't think the CPU wants to do much more...

Never mind, I'll just have to get a PIII600 and slap her in there, right Guyver...hehe

Speak to you all laters....

Lukey

[Maggi]

Heya Lukey !

Don't give up yet ...

Just let it run for a couple of days @ 416MHz, and then try again to reach 500MHz.

Seriously !

I haven't got the official prove, but it seems that letting your chips run at high level for a while gives a fair chance to exceed your peak level after a while.

I did so with my Mill G200, Myst G200 and my former Celery300A and all of them were a bit more OCable after the process of 'burning in your chips' ...
(remember that topic from a while ago?)

On the other hand, if you're already heading for a P3 and can afford it, you should probably wait until the next gen Celeries hit the streets ... they come with a P3 core and 128KB full speed L2 cache and are supposed to be way cheaper than regular P3s.


------------------
Cheerio,
Maggi

Asus P2B-S @ 112MHz FSB - Bios 1010 final
Celeron300A @ 504Mhz
128MB 7ns SDRAM
G400 DualHead 32MB SGRAM @ 201 MHz memory clock

[ALBPM]

Hey Lukey, sounds like you need a serious heatsink and fan on that processor and some 80mm case fans.

Paul

[LAMFDTK]

Lukey I had the same CPU and The LAST thing you need is more volts! I'm surprised that the people posting here missed the key factor as to why this P-333 wont do 450. The L2 Cache is not fast enough. thats why your CPU and mine will post and run at 4x100 or 4x1**. Your at your limit with this CPU. I found this out with mine. Are you measuring TEMP's on the Motherboard or CPU? Get some fans and some saws and get to work if the temp bothers you. GOOD LUCK

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PIII-450, 128 meg HSRAM Asus P3B-F,SB Live!,V2/12
W98/NT4.0/W2K Proff./server Harddrive caddy with various WD 5400 Hp 6200C

[KvHagedorn]

Paul,

I've been considering getting the alpha for my cpu, but I'm too chicken to try and force the stock heatsink on my brand new PIII-600. Did you remove yours yet? What did you use and how did it go?

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Kind Regards,

KvH

[ALBPM]

It's a little scary but can be done without hurting anything. I used the case screw technique. Set a case screw on it's head (threads up) on a sturdy flat surface. Align it with one of the pin holes in the plastic cover (side with the hologram)and push hard. You will hear a pop when the end of the pin clears the board. Repeat with the other three pins. This won't completely push the pins out of the Heatsink/Fan but far enough to clear the ciruit board.
Oh, and have a screw driver handy in case the screw gets stuck in one of the holes.

I rate this as a'High Pucker Factor'procedure but it's the safest way to remove the heatsink/Fan.

Paul
It's fairly safe because the case screw isn't long enough to make contact with any circuitry on the card.

[KvHagedorn]

Thanks, Paul.. how deep is that alpha once you get the fans on it, anyway?

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Kind Regards,

KvH

[ALBPM]

Hey KvH,

The fans aren't on the back facing the memory like most CPU Heatsinks. They are on the top facing the side cover. The unit is 65mm wide and doesn't interfere with any of the Dimm slots on my ABIT BX6 r2. I think all the ABIT and most ASUS boards have plenty of room.
They make the Alpha sound bigger and heavier than it really is on the reviews I've seen. I remember when I first held the box when it arrived, it felt too light. Like maybe they forgot to pack the Heatsink or something.
It does a good job cooling. I have a P3-500 and am overclocking at 560 and 585. With the Alpha the temp stays in the 32-34 deg C range. It never gets above 34. I taped the thermistor that came with the BX6 r2 to the heatsink right next to the processor. I have been able to run at 620MHz with the cache disabled which is slower. I couldn't do that before I got the Alpha.
I have Mitsubishi cache on this processor which is the worst for overclocking purposes.
Yesterday, I made a cache spacer to help cool down the cache chips. It helped to stabilize things at 560 and 585 but not enough to run at 620 with the L2 cache enabled.

Paul

[KvHagedorn]

Many thanks for all your input, Paul. I have an unusual motherboard, though and it's somewhat crowded. But I really do like it. Anandtech gave it a pretty good review: Tyan Thunderbolt

I'll measure and see if it will fit.. dunno if I can get it to 672MHz, though. That might be pushing the limits of the silicon a bit Oh, and thanks for the tip about the Mitsubishi memory!

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Kind Regards,

KvH

[ALBPM]

Wow!! Nice looking Dual Board KvH..

If you were only using a single processor it may work with the Alpha. Here's a spec sheet for the P3125...
www.micforg.co.jp/c_p3125e.html
Unfortunately they don't have any Tyan motherboards on their list.

Another option would be the Vantec P3-5030. It's rated as the second best heatsink/fan combo for P3's. It's also not as wide and may be a better option for Dual Processors. Besides they are only $19.95 at 2CoolTek.
2cooltek.safeshopper.com/

Paul

[KvHagedorn]

Thanks again Paul.. you've really been most helpful

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Kind Regards,

KvH