Posted 07 November 2002 - 02:07 AM
built a homebrew mod, hot flashed the chip (29F002-- the place where I purchased the chip list it as a 29F020) using an msi mobo that I had laying around using uniflash. flashed with superfro's evox-color-err 2.5, poped the chip in, powered up the xbox and low and behold it worked... initally, then I rebooted in an attempt to load evolutionx's dashboard from CD-RW. I could only get versoin 1.8.458 to boot from cd-rw. Okay I shut everything down to so I could do a little more reading before I actually started transfering stuff over from my pc (divx, boxplorer, etc.). Turned system back on and nothing, sometimes I would get a steady green light, but most of the time I would get the red/green flashing accompanied by the shut down/restart. So I thought... lose connection right? Okay rechecked all my solder connection... touched up the ones that I thought might be bad, and nothing except the same thing. So I thought that mabe they sent me the wrong chip so I download the specs for the 29F020 along with the spec sheet for the onboard bois for the xbox. (the chip that in being used on my xbox is a 40pin tsop type HY29F080-90) along with the pinouts for both. Having diagram of homebrew mod and pinout of both chips I, took my xbox back apart and with my trusty ohm-meter set to beep mode, I systematicaly checked every pin one by one A0-A17, D0-D7, VCC, CE, OE, VPP, PMG.. I mean I checked them all. How you ask? like so.. with mod still connected and taking measurements from socket that I installed to house the chip, I checked from pin 2 of socket (which is A16) to the pin that corresponsed to that particular data line right on my xbox mobo-bois(pin3), now I did this for every friggen pin on the mod chip. I even added the components to make the scematic more stable. But nothing seems to work, all I get now is a solid green lighted button, no audio, no video, nothing. Has anyone had this problem and if so can you give me some advice. Thanks
Posted 07 November 2002 - 02:51 AM
I assume you have a multimeter... track down the data sheet for a Flash chip (probably 29F080) TSOP-44 package. Find the BIOS chip on the motherboard and check, line-for-line each pin against the matching one on your own homebrew (A0-A19, D0-D7, etc) and verify THOSE are solid connections.
Posted 07 November 2002 - 03:21 AM
Posted 07 November 2002 - 08:04 AM
Posted 07 November 2002 - 11:23 AM
Posted 07 November 2002 - 04:32 PM
Posted 07 November 2002 - 04:37 PM
|QUOTE (smoker007 @ Nov 7 2002, 07:04 AM)|
|No, there is no fan on the small nvidia chip, however there is a small fan mounted next to the processor. I don't get the hint.|
he was trying to tell you you might have a v2 xbox.
Wich you don't as you have a fan on the GPU.
The small Nvidia chip is not the GPU, but the sound chip if I am not mistaken.
V2 need different bios to work.
Posted 07 November 2002 - 04:45 PM
Posted 07 November 2002 - 05:26 PM
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