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MSI Eclipse MS-7520 Ver. 1.1

H

Hank

Member
This mother board has the jspi1 jumper that is a 2mm type and smaller than the blackcat connector. The jspi1 jumper should be able to program the bios chip. I just got my blackcat and was a little dissappointed to see that I was sent ver. 1.7. I am a total novice and from reading the other msi link on this forum, figure I need pin outs and confirmation of which pins to solder on the jspi1 and blackcat board. I noticed that the MSI thread never came to a conclusion. Can anyone give me a bit of a walk through?
Thanks in advance,
Hank
 
Best thing to do is get a multimeter and buzz out the pin header to the chip , see where you have continuity , from that we will be able to see what goes where . If you can include a pic of your pin header and bios chip , that would be helpful as well.
I would not worry about getting a V1.7 as the only difference between v1.7 and v1.8 is the crystal.
 
IMG_3940.JPG
 
I think MSI's JSPI1 connector would be the same as the other one listed on this forum but I am not sure. Can you tell me what you mean by buzz out the pins? Do you want me to just see which pins are connected to each other with an ohm meter without power being applied? Just another question, where is pin number one on the ver 1.7 BlackCat?
 
I found that the top two (I think VCC3_SB for both) are connected and the bottom two (Ground). I did not find any other pins connected to each other. It seems to match the JSP1 diagram of the other MSI forum.
 
Check what of the jtag pins match up with the spi bios chip on the board using a multimeter , If you can make out the bios chip name that will be a bonus as we will know what to look for . Once we know what pins are what we can connect the BCUSB accordingly
 
Did you also want me to match the spi1 pins to the actual bios chip or is the jtag an easier path to the bios?
 
Just check the connectivity between the JSPI1 pins and the Bios chip , once we know what pins are what , we will know how to connect it to BCUSB header.
 
Just to help make it clear. The top two pins on the spi1 connector go to pins 4 & 8 on the Bios. Going to the 2nd row, the left pin goes to pin 2 on the bios and the right pin goes to pin 5 on the bios. On the 3rd row ofr th spi1, the left pin goes to pin 1 and right pin goes to pin 6 on the bios. Both pins on the spi1 connector in row 4 go to pins 4 & 8 on the bios. The bottom single pin on the spi1 connector goes to pin 7 on the bios.
I did go check the jbat connector as well. The left hand round connection point goes to pins 4 & 8 on the bios. The middle round connection and the square connection of the jbat connector do not appear to be connected to any of the bios pins.
 
If you hook up your BCUSB according to the numbers which you have provided , with the exception of HOLD as per the schematic in the Documentation folder of your BCUSB software , then we can see if you get a connection .... Basically your layout seems to be the same as the MSI board from the other thread , you may have to remove that sticker from the BIOS chip to find out the real make though.
 
I took off the label and the printing is small. The first line looks like a bigger "MX ~ 12G", 2nd line: 25L32050m2i (not really sure after the 25L), 3rd line: 2x545500 (again, I can only be sure of the 2x5......), 4th line: Taiwan, 5th line: a082436 (not sure of the 4).
 
The MX25L320 shows as being on the supported list , now we just need to get the connection working.
 
What is the hold pin that you were talking about and why do we use it or not?
 
The HOLD pin is only connected to VCC if you have lifted the chip from the board as it is in situe we will be bypassing it
 
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