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Hotrodding the X-Fi: A Layman's Guide (No 56k) - Page 114

post #1696 of 2194
Quote:
Originally Posted by coolkwc View Post
All the caps in X-FI is polarized cap rite? can swap the polarized cap with non-polarized cap or not?
I believe Creative use whatever is available to them at the time rather than all the cards being exactly the same. (I have 3 cards all the same model, all with different capacitors and different readings in RMark.)

If you decide replacing capacitors is something for you; you must have a supply or flux and know how it's used to begin thinking about this. You will want to replace with same voltage or higher, same uF or higher. Higher values will mean larger capacitors, non polar capacitors are supposedly nice for audio signals than standard polar. They usually quite large though significantly larger than their polar brother, where capacitors are mounted in close proximity this means it's oridinarily impossible to fit oversize capacitors such as using NP for their superior quality as upgrade from default polars, in this case upgrading the quality of the polar to say an optimal polar - Panasonic FC / FM, or Rubycon. In polarized capacitors the stripe is the negative terminal which goes on the shaded part of the board, install wrong way and it pops - this can be loud and cause permanent defness.
post #1697 of 2194
Do you think this cap is suitable for replace the DSP supply cap?

SANYO | 10SP470M | Capacitors | Passives | Farnell MY
post #1698 of 2194
Quote:
Originally Posted by coolkwc View Post
Do you think this cap is suitable for replace the DSP supply cap?

SANYO | 10SP470M | Capacitors | Passives | Farnell MY
caps are so cheap that i recommend getting a SIP socket and putting it on your card so you can test a bunch of different caps to find the one that's right for you. each cap will have a different sound signature, so find the one you like best before soldering it directly to the board.
post #1699 of 2194
Ive gone ahead and bought some LM4562NA op amps from a guy in Australia, are these usable due to the NA on the end of em?
post #1700 of 2194
Quote:
Originally Posted by okydoke View Post
Ive gone ahead and bought some LM4562NA op amps from a guy in Australia, are these usable due to the NA on the end of em?
na?
never heard of lm4562na, are you sure they're not lm4562ma?

EDIT: nevermind, looked it up. they're DIP chips, so they're significantly larger than the SOIC chips used on the x-fi. you can still use them, but you'll need to get an adapter or get crafty with some wiring. fyi, they have the same pinout as the SOIC version.
if you were to get an adapter, this is the one you'd need.
post #1701 of 2194
thank you so much random murderer, do you think even though its larger id be able to directly solder it to the socket anyway? the pins on it seem to stem downwards a bit so i could just bend them to where i need to solder them perhaps?
post #1702 of 2194
Quote:
Originally Posted by okydoke View Post
thank you so much random murderer, do you think even though its larger id be able to directly solder it to the socket anyway? the pins on it seem to stem downwards a bit so i could just bend them to where i need to solder them perhaps?
i wouldn't risk it. not only would you need to be a freakin' incredible solderer, but the pins would need to be bent in such a way that you run the risk of shorting two or more of them.
if you don't want to buy an adapter, then run ~1.5 inches of wire from each pin to its respective pad.
post #1703 of 2194
It's unfortunate how easily these thin flat pins break, bending them back and forth once or twice they snap off, not at all like round leads.
post #1704 of 2194
Quote:
EDIT: nevermind, looked it up. they're DIP chips, so they're significantly larger than the SOIC chips used on the x-fi. you can still use them, but you'll need to get an adapter or get crafty with some wiring.
I think it is way better to order sample of the SIOC LM4562 instead making crazy stuff to fit a DIP versions of them...


coolkwc - no, it is not, because it won't fit there and also because the voltage regulator hate super-low-ESR caps and the resulting voltage has more spikes and are worser that using the old crap Jamicon "thing"!
Check there: http://www.head-fi.org/forums/f6/x-f...91/index3.html
about the TPS54352
post #1705 of 2194
Thread Starter 
you more experienced modders should try the OPA2365 opamps. will need to tap the 5V supply though. it sounds great.
post #1706 of 2194
Quote:
Originally Posted by cotdt View Post
you more experienced modders should try the OPA2365 opamps. will need to tap the 5V supply though. it sounds great.
Some question, where to tap the 5V? And is there any higher voltage (like 12V) that I can tap on the card?

Another question, after tapping, what about the V-? As the voltage increase, do I need to use higher voltage caps on V-?
post #1707 of 2194
I've got a question regarding the decoupling caps. Just wondering which ones in particular benefit from shorting? Where are they?
post #1708 of 2194
Now that I get my X-Fi XtremeMusic, I wanted to mod it, starting with the DSP caps, which one should I choose?

1000uF 16V Sanyo WG
1500uF 6.3V Sanyo WF
470uF 16V Rubycon YK
470uF 16V Nichicon HM(M)
post #1709 of 2194
Oh, one more question, if I wanted to bypass the decoupling caps, do I really need to remove the caps? Or is it leave the capacitor alone and short a wire behind them is sufficient?
post #1710 of 2194
Bump!!
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