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Silverstone SFX Series PSUs (ST45SF-G/SX600-G/SX500-LG) Owners Club - Page 16

post #151 of 211
Quote:
Originally Posted by lutjens View Post

I'm building a couple of ITX systems and I've commissioned the services of an electronics firm to go through the 600W SFX power supply and upgrade it. It's a fairly pricey proposition, so I'll be having four supplies done to bring down the per unit cost and permit a couple of spare units.

Basically, they'll be ensuring all is as it should be in the unit, TIM-wise and upgrading all the crappy capacitors with Mil-Spec Sanyo units to better tolerate the weak cooling design and live with the higher temperatures that they'll be exposed to.

All the 18AWG ribbon cables are being chucked for custom length 16AWG cables as well, with top Molex connectors.

I hope to have the completed supplies in a couple of weeks...wink.gif

I am curious as to what came of his. What gains/advantages have you noticed other than the use of better components? Did the company provide any new output gains ( like ripple, etc. ) and/or info about the upgrade? I thought about doing something similar with better components and/or modding one myself.
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post #152 of 211
Hey guys!I was thinking of getting the SX600-G for my upcoming Project MATX (slightly bigger compact splash) but I have a question. Have there been revision to the unit? Has the fan issue been solved? Iv'e seen videos where the unit even at full speed (fan) is fairly quiet with no chirping sound.
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post #153 of 211
Not much love in this thread huh, the SX600 is sold out when I went to buy it for my mitx case. I ended up getting the SX500, hopefully it will hold over and handle the OC on my sig rig... at least until the SX700LTP

@SilverStone - Would you be able to provide any updates on when the new 700W SFX PSU will be available?
post #154 of 211
Quote:
Originally Posted by Aibohphobia View Post

Looks like SilverStone got tired of all the whining about the caps in the SX500-LG tongue.gif

I got the SX500-LG v1.1 and it has this ringing (not electric scratching) whine... boy is it annoying .. especially since the PSU is not really enclosed (Sugo 13B), its even more audible - but cant seem to capture it on video.

Could be the mobo too rolleyes.gif
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post #155 of 211
I have some coil whine on my sfx 600 v1.1 psu and its annoying as hell. It doesnt last all too long but when it does it makes me wish my computer was power supplyless.
post #156 of 211
My 450 was super quiet it was the v.2
Edited by Lazer1337 - 1/30/16 at 5:52am
post #157 of 211
Quote:
Originally Posted by Flamingo View Post

I got the SX500-LG v1.1 and it has this ringing (not electric scratching) whine... boy is it annoying .. especially since the PSU is not really enclosed (Sugo 13B), its even more audible - but cant seem to capture it on video.

Could be the mobo too rolleyes.gif

Just to update, the SFX unit and motherboard are perfectly quite. The sound was coming from the Seidon pump.
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post #158 of 211
Just wanted to thank all those that have been posting in this thread with information relating to these Silverstone power supplies. I read through this thread many times when researching out SFX power supplies and trying to figure out what to do for my new system. I ended up going with the SX600 and then modifying a bunch of things about it to improve it's performance. I swapped out all the cheap Taiwanese/Chinese capacitors for the best Japanese ones I could find (Chemi-Con).

Additionally I redid the cooling system and got rid of the ADDA fan and replaced it with a higher end Sunon fan. I also modified the case itself and cut out the fan grill, since it was unnecessary for my build and added noise. And lastly I cut open the side of the case where the secondary capacitors are hidden away and suffer from lack of cooling because of their location being so cramped and not in the path of the fan. I added two more 40mm Sunon fans in these locations to cool the secondary capacitors and that portion of the case.

As for the fan control itself, I ditched using the internal controller as it just didn't make any sense to me. A power supply this small, that produces this much power needs active cooling, all the time. The whole no fan operation until a certain temp just didn't make sense to me. So I sized the replacement fans airflow and noise so that they could run at a full 12v all the time. At low loads this keeps the power supply barely above ambient, and when pushed harder it keeps the temps much lower than the factory fan configuration.

I saw significant temperature drops in my testing, with everything running much cooler. I used a combination of thermal probes, IR gun, and thermal imaging camera to do the testing. Overall with the upgraded capacitors and case modifications and added fans, the power supply runs way cooler and should last much much longer. It's powering an overclocked 6700k and GTX 980 Ti.

Since I'm not sure if it's allowed or not I won't post a link unless someone says that's okay. I've got a full writeup of the modifications, testing, thermal images and temperature results for those that are interested. Again, thanks to all those that contributed to this thread as the information was very helpful. I'm gonna cross post the same thing on HF as that thread was a huge help too.
post #159 of 211
Quote:
Originally Posted by DarkWr8h View Post

I am curious as to what came of his. What gains/advantages have you noticed other than the use of better components? Did the company provide any new output gains ( like ripple, etc. ) and/or info about the upgrade? I thought about doing something similar with better components and/or modding one myself.

Unfortunately, this is still in progress. The electronics shop doing the work only ended up replacing a few of the questionable capacitors in the power supply and when I returned, I found that there was still quite a few needing replacement (a large Teapo on the secondary and the G-Luxon and Gemcon solids) that the shop found OK for some reason. After I made very clear that everything that's not a Sanyo or Chemi-con must go, they went back the drawing board and ordered replacements that I pointed out online. Those G-Luxon and Gemcon caps are being replaced with Panasonic Oscon replacements and the remaining electrolytic Teapos are being yanked for Sanyos.

I hope to finally have this thing back in the next week or two...wink.gif
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post #160 of 211
Quote:
Originally Posted by totalgeek View Post

... swapped out all the cheap Taiwanese/Chinese capacitors for the best Japanese ones I could find (Chemi-Con) ...

... got rid of the ADDA fan and replaced it with a higher end Sunon fan ...

... cut out the fan grill...

... cut open the side of the case where the secondary capacitors are hidden away and suffer from lack of cooling because of their location being so cramped and not in the path of the fan. I added two more 40mm Sunon fans in these locations to cool the secondary capacitors and that portion of the case ...

... I ditched using the internal controller as it just didn't make any sense to me. A power supply this small, that produces this much power needs active cooling, all the time. The whole no fan operation until a certain temp just didn't make sense to me ...

^ Here's a man who knows perfectly well what he's doing. specool.gif

Quote:
Originally Posted by totalgeek View Post

... I've got a full writeup of the modifications, testing, thermal images and temperature results for those that are interested ...

Sounds very interesting, please share. thumb.gif
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