Tualatin on a 440BX Negative Effects

[Biggs]

Tualatin on a 440BX

"A bigger issue are the differences in the processor system busses. Pentium processors prior to Tualatin use AGTL+ which uses 1.5V signal levels. The newer Tualatins use AGTL with 1.25V signal levels.

If you want to read about the processor system bus further, please see page 11 of the Celeron datasheets which can be found here.

The specifications sheet for Tualatin Celerons state that AGTL and AGTL+ are incompatible. This may be true based on their design but in practice you CAN get the Tualatin CPU's that need AGTL signals to work with motherboards that provide AGTL+ signals. I don't know what the long term effects of running this out of spec would be so please do the modification that I will describe at your own risk. I have not heard of anyone killing their CPU by doing this but then again this modification hasn't been around very long. around for a couple of months."

Erm, so what possible negative effect(s) should one be expecting?

 

[aswedc]

Running a processor at a higher voltage then intended can result in a much shorter life span...

 

[dbrown39]

I think PowerLeaps Slot adapter takes care of this issue by providing it's own power supply. If I'm wrong someone please let me know because I'm planning on bying one.

DB

 

[Vadatajs]

Originally posted by: dbrown39
I think PowerLeaps Slot adapter takes care of this issue by providing it's own power supply. If I'm wrong someone please let me know because I'm planning on bying one.

DB

No, you're right. I'm running one right now. The bios doesn't correctly report the clockspeed, and the on die thermal sensor doesn't work, but everything runs fine.

 

[bacillus]

the mod is much cheaper than powerleap's solution!

 

[Biggs]

Yes, thanks for the response folks but my primary concern was the "side effects" of the extra voltage the AGTL+ supplies to the CPU when the mod is used.

 

[bacillus]

Originally posted by: Biggs
Yes, thanks for the response folks but my primary concern was the "side effects" of the extra voltage the AGTL+ supplies to the CPU when the mod is used.

how long are you planning to use the cpu??

 

[Booster]

I suggest it's much cheaper to get a new, Tualatin-supported moboard. For instance, there are several VIA-based ones (VIA Apollo 133T) that go for 40 dollars (for example, the Gigabyte GA-6VTXE). They would support UATA 100, AGP4X, fast writes and sideband and any Tualatin CPU w/o any problems. And the performance will be better than that of a BX. I bet this moboard is cheaper than the Powerleap adapter.

 

[RanDum72]

Link to PowerLeap products. Frankly, it doesn't look bad at all, a 1.4ghz Celeron (Tualatin based ) upgrade is $169 and that includes the Slotket, HSF.

 

[SickBeast]

does anyone here know if a tualatin celeron will work in an abit bm6? it uses the bx chipset and is socket 370. it supports a multiplier of 12 and voltages down to 1.1v.

also, what is a better option: powerleap, or the mod?

 

[ElFenix]

think i'd just do the powerleap. more guarantee than trying to find a good slocket.

 

[Booster]

I'd just get a new moboard, it's going to be cheaper and easier than finding a Powerleap, IMO. I've seen $40-50 range prices for SIS or VIA Tualatin moboards.

 

[SickBeast]

yeah but the mod is much cheaper...as in it's FREE. and as far as i know it does exactly the same thing as the powerleap. i just wanted to know if anyone has gotten a tualatin running on the abit bm6 board.

 

[boyRacer]

i'd never pick a VIA chipset over an intel if i had a choice... even if that meant modding it. My board recognizes the tualatin fine... Pentium III 1.266 but my bro's BX board reports his Celeron 1.1A@1.54 as a Pentium II 1.54GHz... :Q i'm guessing he needs a newer bios... but other than that he's rock stable... no problems at all. Two Tualatins on Coppermined boards saved me at least $100 if I bought the powerleap.

 

[SickBeast]

what are the brands and models of the motherboards you modded? do you think it would work with an abit bm6?

 

[ElFenix]

Originally posted by: Booster
I'd just get a new moboard, it's going to be cheaper and easier than finding a Powerleap, IMO. I've seen $40-50 range prices for SIS or VIA Tualatin moboards.

well, it'd be in a dell, so it'd be new mobo + more. though i do have that case laying around... wait... if i were gonna get a new computer it would just be some athlon or p4 anyway

 

[boyRacer]

Originally posted by: SickBeast
what are the brands and models of the motherboards you modded? do you think it would work with an abit bm6?

its an asus cusl2-c... and an asus cubx-l... it should work... be it 815 or 440bx... just make sure you have the latest bios... and you do the pin mod correctly... my cubx is pretty much as old as your bm6...

 

[spanky]

u can get certain slotkets and modify them to make bx mobo's use the correct voltage.

 

[SickBeast]

damn...i'm wishing i would have kept my old 440LX motherboard...i could have had some blazing celery action on that beast.

actually this abit board isn't mine, it belongs to a friend of mine. he's leaning toward the non-tualatin celery 1100, just because there is an article online that says it's guaranteed to work. i haven't been able to find any documentation that supports the fact that the bm6 can run the tualatin.

hey by the way guys, do you know of anywhere where i can buy one of these chips? any p3/celeron/tualatin. i need a place that can ship internationally as i am in canada. actually, if any of you know someone that wants to sell me one of those chips it would be even better.