Dear friends,
I think this a bit akward but I do need help, a lot, by the way.
I have and old motherboard from PCChips that I do not find in the web
http://www.pcchips.com.tw.
It has a Socket 5, an AMI BIOS, 4 ISA slots, 4 PCI, 2 IDE controllers on board, 4 banks for memory of 72 contacts and the only IO system is the keyboard connector (the big one -not PS2). It is equiped by a Pentium 90.
I can not help more because I do not have a power supply with the same interface that is currently avalaible, so even I can not even start the motherboard right now. Maybe I can find a conversor but I prefer identify the mobo before I plug it anything.
I searched a lot of webs on the Internet watching pictures and the only that is very similar are the mobos based in the old Triton chipset of 95. Stupid of me I lost the manual so I am completely losed.
By the way, navigating in
http://www.x86.org/intel.doc/intelmotherboards.htm the most similar motherboard is the Zappa Advanced/ZP Pentium P54C, Socket 5, 82430 FX Triton Chipset.
A friendly guy posted the photo of the mobo in
http://s87841630.onlinehome.us/MBHW/placa_base.jpg.
Can anybody recognize it?
Thanks in advance,
Mahib.
Hello (again):
I got an AT box with supply so I plugged the mobo but it does not work.
I tell you what is plugged if can be helpful:
* A floppy unit connected to an I/O controller I bought in a second-hand store. The problem is that the brand is NEIMKI (stands for "Netiher it's Mother knows it") and has a lot of jumpers without any legend. I searched for the unique indication (JGBPRIME2) on Internet and the result was zero.
* A Toshiba CD-ROM on the IDE 2.
* A Cirrus Logic graphic card in the VGA SLOT.
* A Realtek 10/100 LAN card.
* A Pentium 90 en the Socket 5.
So I start up the computer and nothing happens, there's no bips nor the monitor shows nothing.
If the mobo is not completely dead, maybe the only thing I did wrong is plug something in th wrong order.
I'll check it to see if somebody can help. Please refer to the URL
http://s87841630.onlinehome.us/MBHW/placa_base.jpg.
JP2: there's no legend. It is under the external battery and below the keyboard connector. It has jumpers in the 2-3 positions so I left it (the first position is hidden by the jumper.)
JP6: It's on position B. If you pay attention to the right-central part of the photo you'll see the legend 75M, 90M, 100M. Hidden by the memory chips on-board it's the JP6 legend. It's destined to the chip speed. B is the position for 90MHz so the position is correct.
JP7: No legend. I left it as is.
JP10: it's near the 91A/DY chip. No legend, no jumper. It was originally as this? Did I take off the jumpers when I "parked" the mobo? No idea.
JP11: it is the TB LED. I guess is the "TURBO" led the mid 90s mobos had. I plugged the connector of the box.
JP12: it is the POW LED/KEY LOCK. I plugged the box connector and works. At least the POW LED because the KEY LOCK I had no opportunity to check.
JP13: it is the SPEAKER. In the box there was no connector with the this text but following the only connector that has no legend I reached the speaker so I plugged it.
JP14: it is the TB SW (¿Turbo Switch?). There was no connector nor a switch on the box so I left it as is.
JP15: it is the HDD LED so I plugged the box connector with this legend.
JP16: it is the RESET so I plugged the box connector with this legend.
JP17: it is the SUSPEND SW (?). It must be the suspend switch. There was no switch of this type in the box so I left it as is.
The FAN POW connector below the micro socket I left it empty because the fan has a male big connector to plug one female connector of the power supply. And works also.
The supposed 1, 3, 4 and 5 jumpers does not exist so there is no comments.
Some of the jumpers I talked about are not visible in the picture so I indicate them.
From the right down border of the picture and from top to bottom and right to left are:
13
12
17
16
15
14
11
7
I do not know if to give up. If somebody has and idea...
Thanks.