Mainboard Jumper Settings

[FZWG]

Someone said this hobby is not for the faint hearted!! Appreciate some assistance with the following questions:

Trying to determine if a P200MHz (nonMMX) CPU can be installed on a PT-5IV mainboard. The P200 is a CPU type Intel 80502-200 where (I think) the Vcore=3.3V and the speed=66MHz x 3.

Q#1: Is there some sort of rhyme and reason as to where the jumpers are located to determine if they are set correctly?

For example:
JP4, JP5: 2pins each, both open, located on the board by the north west corner of the Socket 7.
Q#2: Any assumption as to what these are for?

JP6,JP7: 3pins each, 2-3 closed on each one, located directly south of Socket 7, it appears that 1-2=2.xV and 2-3=3.xV.

JP8,JP9,JP10: 2 pins each, only JP10 closed, located by the keyboard/speakers, etc., it appears that these jumpers designate 3.3V option.
JP12,JP13: 2pins each, only JP12 closed, in a series right below JP8,9,10, it appears that these jumpers designate 3.5V option.

JP 11: 3pins, 2-3 closed, located west of Q1, it appears that 1-2=2.5V, and 2-3=2.9V.

JP15: 2 pins, open, located by southwest corner of Q1.

JP16: 3pins, 2-3 closed, located by BIOS AWARD, it appears that 1-2=5V, and 2-3=12V.

Found 16 jumpers, the ones not listed above are welded (thank goodness!!)

Q#3: If a P200 CPU is installed, and the jumpers do not provide enough juice, or provide too much juice, would the worst case scenario be that the pc will not boot, or is it worse?

Q#4: Over the Intel Chip SB82371SB there is a white label with the following info: "Maxi/10" written over it. Does this mean anything?

Q#5: Is there a "safe" way to test this board without frying it?

Appreciate ANY thoughts. Thank you in advance for your help.
http://www.sysopt.com/forum/smile.gif http://www.sysopt.com/forum/smile.gif http://www.sysopt.com/forum/smile.gif

[Nighthawk]

Made by Azza (According to motherboards.org).

Their website really sucks so I'll try to shed some light.

66x3 is correct. vcore on these is 3.4 or 3.5.

1) usually not. I have seen very little pattern.

2) Those could be the multiplier pins.

JP6/7 are probably the vcore. Leave them 2-3.

JP16 is for programming the EEprom. Don't touch those.

4) That's just the PC reseller's name. Doesn't mean a thing.

5) I would say that it's at least 80% safe, bordering on even higher numbers. Old pentium motherboards don't have much in the way of voltage adjustments so you don't really have to worry about frying a chip (though it can happen).

Check the board for silkscreened instructions on jumpers. I have a PT-6IF ppro motherboard and love it.

(Start edit)
The PT-5IV isn't on their BIOS flash page, so it could easily not be made by them. Check motherboards.org.

[This message has been edited by Nighthawk (edited 03-13-2001).]

[FZWG]

Nighthawk,

Thank you for the info.
As previously stated, this stuff is not for the faint hearted. Will take a good look at your good info against what is on the board. There is no guidance on the jumpers, and the AZZA folks are not exactly eager to have anyone get in touch with them. Don't see an e address for them.

Have a good day.

http://www.sysopt.com/forum/smile.gif http://www.sysopt.com/forum/smile.gif

[fyxxer32]

Ive got a manual...... email me.

[FZWG]

Thank you for the offer, fyxxer32.

Incredible as it may seem, was talking to this older friend about the PT-5IV, and he thought it rang a bell. Went over to his house, and we found a manual!!! Made my day!!

Have a great weekend.
http://www.sysopt.com/forum/smile.gif