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in a furious rush i harvested 2 ram chips off a working board, now id like to re-install these and get it working again because as far as i can remember this unit worked just fine prior.
the replacement ram came from a friend with a broken console. one chip had 2 twisted pins which laid down pretty nice with gentle persuasion.
now that they are installed (2 on the bottom) the unit will not power on?
power button does nothing, any ideas how ram affects the power process?
could this be a separate issue?
very interested to hear thoughts/theories.
the extent of my troubleshooting was testing a working consoles psu on this board which yielded identical results (power button does nothing, i can 'hear' the psu working there is a subtle discharge sound).
i have 1 more chip to try in place of the twisted one.
there are no bridges on the install and contact is made on each pad as far as continuity is concerned.
Friday night i got home excited to try a ram upgrade
have a perfect V1.1 in a crystal case, what could be better
soft modded, unlocked the TSOP, flashed x25035 using hexen, swapped in a big sata drive/80wire ide/ installed XBMC as dash, smooth sailing...
So i had purchased a set of chips from utsource about 4 weeks ago and when they got here i only had 3 chips... checked my invoice and realized i had ordered and paid for 3 chips... bummer
So in haste i ordered 5 more from an ebay seller in the states... i had ordered K4D623238F-QC50
Got all 5
I installed 4 of them after the TSOP (in the same night) not realizing this is a 512K chip and the XBOX needs the 1M
all the way up to the 4th i was getting orange and red flashing.... good sign, diligent with continuity tester
on the 4th it was clear something was wrong... i went to bed frustrated with a few unknowns.
Got back at it and installed the 3 utsource chips in place of the 512's, when i had all 3 in with 4 still being installed i realized at flashing orange and red the eject button would boot the X2 bios??? what sorcery is this.
The ram wasnt being recognized but it prompted me to consider XBLAST (which i was vaguely aware of) seeing as i had access to HDD/FTP from dash Please login or register to see this link.
Found the xbe version, booted from XBMC and actually had a success on 1/4.. now im feeling ok.
Re-flow the other 3 (XBLAST has a diagram entailing which chip is which so you can refrence their test screen)
now i've got 3/4 testing positive. very excitedly I open up another xbox i use and harvest a chip (hell i can replace it another time!!!!)
Well, the removal goes spotty at best and by the time ive lined up the pins and got the soldering done one of the corner pins breaks off while im trying to make a small adjustment.... angry i take it off the board.... lift a pad.... now you've ruined a wonderful console, and have 3 chips to remove and not enough supplies to outfit anything with an upgrade. remove yourself from the situation, breathe deep and take a nap.
luck is funny.
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After examining the pinout of the chip i realized the center pins of the right and left side are named N.C..... what could that be? is it possible thats pin for the pad that lifted??
Ii find another datasheet that explains the definition of N.C as "reserved for future revisions" otherwise: This pin doesnt get used right now... WHAT!!?!?!?!
Sure enough the lifted pad is N.C on the pinout diagram
Just yonder a warm optimism drags me back into the basement.
Now focused, rested, and caffeinated i go to work at harvesting another IC from the 1.4. a fantastic removal, straight pins and all.
Get the chip down with no hiccups and wearily stare at that grey pin on a brown backdrop (lifted pad)
all back together XBLAST reports 4 success'
victory is sweet
XBMC sees it, Virtual Cop 3 boots....
Despite so many stupid mistakes it worked!
But its not all roses i wasted 30 bucks on 5 ic's i will never use and also the fact my 1.4 is now in limbo.
so i can either replace the 2 and call it a day..... or...... order 6 and spend another 12 hours hunched over a 17 year old game console..... i think i'll take the latter.
I recently completed and posted on a few Facebook groups a little project which I recently finished and one of your members recommend me come here and share it with you all, so here goes!
The whole thing started when I decided I wanted to build a PC into an Xbox. I've done a little bit of modding here and there in the past, but nothing to this extent. Sadly I didn't make a build log as I went along, but here is the finished product for you to enjoy!
Intel i5-7400 Processor running at 3.0 GHz
Zotac 4GB 1050 Ti Graphics Card
16GB DDR4 Crucial Memory running at 2400 MHz
MSi H110i PRO LGA1151 Mini-ITX Motherboard
250GB Samsung NVMe SSD
2TB Seagate Barracude Storage HDD
300w Game Max Power Supply
It's got a custom water cooled loop in there too, and boots to Windows desktop in 13 seconds!