First post, by feipoa
- Rank
- l33t++
I have an Asus PCI/I-P54TP4 motherboard in a case with an AMD K5-PR200. It is a socket 5 system that I previously modified to have both BF0 and BF1 jumpers, letting the K5 run at 2x. I am planning on another mod for the system. It currently has 512 KB of direct-mapped L2 cache, but there exist QFP pads for pipeline burst SRAM (PB SRAM). I read in the manual that this board can do 256K pipeline burst SRAM, meaning two QFP-100 chips of 32kx32.
However, there are unpopulated jumpers JP13, JP14, and JP15 as well as unpopulated resistors R57, R58, R59, and R60. With my direct-mapped configuration, only JP12 has a header soldered, as does R61. I am hoping someone has an Asus PCI/I-P54TP4 with factory PB SRAM and could send me a photo of this region so I can see what is populated. The manual only mentions to set JP12 to 256K for pipeline burst SRAM, and has no mention of these other jumpers. However, JP12 is also used to select between 256K and 512K direct-mapped SRAM, thus I am concerned some of these other jumpers or resistors may be needed.
Also, I read on anand tech that the 430FX chips, which is what is used on the Asus PCI/I-P54TP4, can tolerate 512K PB SRAM. If this is true, do you think it would work if I soldered on 64kx32 PB SRAM chips instead of 32kx32?
Here's an image of the unpopulated region I am referring to:
These are the 32kx32 PB SRAM chips I was intending to desolder:
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