SMF - Just Installed!
Started by Andy Brown, November 01, 2014, 04:53:46 am
Quote from: badboy2 on February 23, 2015, 09:05:29 pmHi all, me again >.<. I try to put the cpu heatsink on, use 1 cpu e5520 to make sure old bios could handle this. I try many time to turn my system on but computer power supply shuts down after a few seconds and I have no idea why's that. Anyone could give me a suggestion for this trouble?
Quote from: Andy Brown on February 21, 2015, 08:17:19 amI've had some more time to play around with the BIOS SPI header on an 002 motherboard. I've verified that when VSS and VDD are supplied with 0/3.3V then WP and HOLD are both high at the legs of the BIOS IC. This is good. It means that the SPI flash device is write enabled and should accept programming commands.However, I've tried sending it the JEDEC RDID command and it's not responding, SO stubbornly stays high. I know my CE/SCK/SI protocol is correct because I've verified it with a logic analyser at the master end and I've communicated like this with dozens of SPI ICs before now. Not sure what's going on, maybe I'll probe it at the legs of the BIOS IC to see if the signals are not getting there intact.
Quote from: digitaltrousers on February 25, 2015, 03:03:30 amHave you tried both logic low and high on pin 1 of the SPI header (one with the square pad)? I'm not sure it's CE as in your graphic (at least on my board anyway).
Quote from: Andy Brown on February 25, 2015, 01:29:14 pmPin 1 on the SPI header is a dead-short (<1 ohm resistance) to pin 1 on the BIOS IC on my board. Isn't it the same on yours?
Quote from: digitaltrousers on February 25, 2015, 06:57:17 pmI was actually getting an unusual reading from my multimeter re the FET (beeping for continuity but still showing open circuit on the display - which I'm not sure how to interpret),
Quote from: digitaltrousersHave you soldered pins to the pads? Could you have shorted pin 1 to the neighboring pin? It does seem strange to me that there would be two pins on the header for exactly the same thing.
Quote from: digitaltrousersObviously though, it's a curiosity whether the -003 bootblock is only compatible with the more recent chipset stepping, i.e on the -003 version of the board. See http://h30499.www3.hp.com/t5/Workstations-z-series-xw-series/Z800-2nd-gen/m-p/2367973/highlight/true#M12100
QuoteWhat programmer are you using
QuoteAlso, did you ever try your 002 board with dual processors
Quote from: x2xx on March 11, 2015, 10:26:07 amquick info:i was searching for max power output thought 6pin GPU connector and i find this pdf http://www.nvidia.com/content/quadro/maximus/di-06471-001_v02.pdfwhere they use 6-pin to 8-pin adaptors for tesla and quadro fx5xxx in Z800because i want to try SLI GTX980 and dont want case full of molex conversion cables
Quote from: digitaltrousers on March 16, 2015, 03:34:18 pmI thought it would be worth asking though, has anyone else had the same symptoms, and/or could shed any light on the problem?
Quote from: Andy Brown on March 16, 2015, 03:45:13 pmSilly question: what's your memory configuration (type and slots used)?Also, have you got a case speaker you can rig up to hear the diagnostic beeps? (the meaning is in the service manual under "Diagnostic LED and audible (beep) codes")