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Trying to install a P3 on Tyan Trinity and am confused. HELP !!!

V

vinayag

Senior member
I got a PENTIUM III 733-256K 133FSB FCPGA and a Tyan S1854 Trinity 400 motherboard and am just trying to read the manuals. My question is, What is the difference between a socket 370 and a slot 1 ?

Looking at the P3 it looks like it will go into the socket 370 with all those pins in the bottom. BUT the Tyan manual says that socket 370 is used for celerons and the slot 1 is used for P3's. So now Im confused as to whether Im on the right track. Help !!!

According to me, the fan heatsink will align with the P3 and stick to it. Then the processors upteen pins will fit into the socket 370. Am I right ?

Or am I missing a brace here that would allow me to install the p3 on the Slot 1 ?
 
You're on the right track. Older p3's were only slot1 but the new coppermine's are both slot one and socket 370 FC-PGA.

But you might want to check Tyan's website for a bios flash or firmware upgrade to make sure that the mobo supports the new coppermines.

Edit...this motherboard is a Slot 1 or socket 370? Is it a big long slot that looks like a PCI/AGP/ISA slot or is it a square-shaped slot for the CPU?
 
Oh no. Bios flash ? Looking at the number of recomendation I got here for this p3/mb combination, I thought they are entirely compatible off the box.

Anyway, to answer your question, the mb has both the long slot 1 and the square shaped socket 370. But the manual says that the celeron go into the socket 370 and the p3's to the slot 1. So Im confused.

Also, the manual says that the mb supports p3's upto 70mhz which is fine. But does that mean that the p3 cannot be overcloked ? I do not intent to, but just am curious.
 
vinayag,just checked their website TYAN it says upto P3-800 for socket 370 so you are fine the P3-733 don`t overclock well not like the 700E cB0 so don`t bother trying in my opinion.

 
Thanks mem. Does the board have the shipped bios version printed anywhere ?

Does this mb have any video memory ? I mean, will anything show up on the monitor without a extra video card ?
 
Whether or not your Tyan Trinity 400 will support an FCPPGA CPU depends on the board revision. The revision is printed on top of the ATX power connector on the board. If it says "9900Y," you have the old revision that was produced before FCPPGA CPUs hit the market. Supposedly, some voltage regulator changes were made to the newer versions for FCPPGA compatibility. I lucked out and got a newer revision board.

If you do have one of the older boards, you can still use a Slot-1 version of the .18u PIII with no problems.
 
Thanks for the info. But it would have been better to give me the good and the bad numbers. Mine says 99PONA. Is that the newer board ?
 
On the website it says pIII in the socket up to 800MHz so you should be fine. And no, that doesn't mean you can't overclock...you can overclock it as high as it will go.
 
vinayag

I just answered your email. There was something I forgot to add in it, though. I just taking a peek at Tyan's website and it says that they recommend the version 2.00 BIOS for optimal Coppermine chip support. You can obtain this flash upgrade from their website.
 
I just thought your previous comment should be clarified in case somebody looks at it later for reference. There is no 2.0 bios for the Trinity 400 (1.07 is the lastest as of today). I guess you read the comment for another board for which tyan has this comment that they need 2.0 for optimal coppermine support.

You are absolutely right about the board revision. And luckily, my board revision is also the new one !!! Im not a fan of flashing bios unless it becomes a problem with day to day operations. Too much danger of blowing the bios IMHO. So I will stay with the shipped bios since it anyway supports p3's upto 70mhz on the socket 370.

Thanks for all your help 😛.
 
I think I killed my Trinity the other day (checked my thread in this group). 🙁 I can't even turn the power on anymore (though my network card shows that power is flowing with an LED indicator).

But, yes, the 1.07 BIOS update is needed for the Socket CuMines.

[EDIT] One other thing -- don't take as gospel what is written on Tyan's website as far as CPU compatibility goes because I discovered that one of their older boards (a dual slot 1 LX) supported up to 433MHz Celerons when the site only listed up to 366.

Also, if you want to overclock the FC-PGA processor, you need to use a slocket to force a new voltage (if that's what you need to do it).
 
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