Silverstone SX500-LG 500W Gold SFX-L

leifeinar

Limp Gawd
Joined
Sep 24, 2007
Messages
345
Mine made so many strange sounds, hard to explain. even with the fan not spinning. had no hopes for improvement when replacing fan with a Noctua but it solved all issues. seems that the fan engine was messed up
 

dboris

n00b
Joined
Jun 21, 2016
Messages
4
Mine made so many strange sounds, hard to explain. even with the fan not spinning. had no hopes for improvement when replacing fan with a Noctua but it solved all issues. seems that the fan engine was messed up
Was it also like a hard drive?
What noctua fan did you used?
 

leifeinar

Limp Gawd
Joined
Sep 24, 2007
Messages
345
sorry, late reply. maby like a squeeking hard drive :) never heard such a sound from any computer gear. just used a ran old i had lying arround, spinns about 650 rpm
 

dboris

n00b
Joined
Jun 21, 2016
Messages
4
Update: my PSU has been remplaced by silverstone under 10 days. Works without any noticeable noise now.
Thanks!
 
Joined
Aug 18, 2015
Messages
24
Hmm, not sure if this has been mentioned here or in some other thread already, but there is a revision without semi-fanless system out now:

- Update: After this review went live, SilverStone provided us some helpful information on the issues facing the original SX500. It is planning on releasing a "V2.0" of the SX500-LG, which will remove the semi-fanless function so the fan can start normally and run within its intended voltage range. Our advice is to wait for the V2.0 if considering the SX500. [source]
- SilverStone SX500-LG product page: Silent running 120mm fan with 18dBA minimum (SX500-LG V2.0) [source]
 

Ulti

Limp Gawd
Joined
Dec 11, 2010
Messages
189
Has anyone tried the new V2.0 version yet? Thinking of going for one but can't see any reviews of it.
 
Joined
Sep 9, 2016
Messages
1
I too had issues with the fan making ridiculous noises. I really wanted to stick with this power supply though so I did a fan mod. I used a Thermaltake LUNA slim 120. I'm not using the thermal resistor, instead I hot glued my own 500ohm variable resistor to the back grill so I can adjust the speed and noise as I wish. So far so good, no thermal issues under full load with a GTX970 and I5 6500. Now its perfectly silent and I love it. I wouldn't recommend buying this power supply because you have a very high chance of either having to swap it out or mod it yourself. But I'm very happy with my results.
Photo 9-09-2016, 5 26 04 PM.jpg
Photo 9-09-2016, 5 17 08 PM.jpg

 

Ulti

Limp Gawd
Joined
Dec 11, 2010
Messages
189
Well my V2.0 will be delivered today, didn't expect it to get dispatched so early as it was quoted for the last week of Sep initially then got updated to mid Sep but seems I was lucky! Not sure if Amazon made a mistake as their listing still states "Delivery in 1-3 weeks".

Will let you guys know how I get on with it.

EDIT: I was a bit sceptical thinking maybe they'd send a V1 by accident but nope, it's definitely a V2.0, just arrived! Will install it later as unfortunately I have to work overtime from home today. :(
 
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Ulti

Limp Gawd
Joined
Dec 11, 2010
Messages
189
So here it is!

(Sorry about the lighting of the first few photos, had the colour balance set up wrong.)








Didn't expect to receive an ATX->SFX bracket so that was a nice addition.

Can confirm the PSU runs silent (fan is spinning permanently though) and is super cool. In my bad airflow case it does not even get hot or spin up on load (i7 4790K and GTX 970). Really happy with it!

My case, CPU and GPU fans are (unsurprisingly I guess) louder.
 

dreamcat4

n00b
Joined
Aug 21, 2015
Messages
6
Hello. Today have done 25mm fan mod internal to this PSU. It adds about 8mm z-height. So from 63mm --> 71mm.


Full Images + Short instruction
=============================

http://imgur.com/a/1nnbZ



Full instruction
===================



For this particular mod, theres 2 possible fan to use. Here they are:

a) Noiseblocker Multiframe M12-S1

(3-pin voltage controlled fan)

or

b) Noiseblocker Multiframe M12PS

(4-pin, PWM version)


Instruction
=========

There are 4 little screw holes that fix the top cover in place. All around the sides of the PSU.

The solution is to drill 4x new 3mm holes at a distance 7mm directly (vertically) underneath the existing holes. You will trash the cover if you drilled in the wrong place. Or if your holes are not uniform the same z-distances (within 1mm of each other tolerance). So be exact and use a centre punch first.

Also use a centre punch (behind with wood block) to 'dent' inwards the metal. This help to much better accomodate the countersunk screw head. And stop it from sticking out. Also can use (*very LESS deep) a 5mm drill bit to bore out the surface and make more of shallow countersunk bevel to also better accomodate the head of the screw. ! Without drilling too far through and end up trashing the top cover entirely.

Taking care, drilling these new holes is actually pretty easy, and can be done with few effort of any regular hardened drill bit in a small hand or cordless drill. The cover might look like its a hard steel, but actually its only a mild steel. So really anybody can do it without special tools.

Re-assemble with new fan, squeeze down very tightly. Also use the fan's included rubber gasket, place it under the fan.

Outcome
=========

This simple modification then raises the top cover height all upwards by 7mm. Which is just barely enough to cramm / squeeze in the noiseblocker fan. Because this fan has a good squashable rubber mounts. It fits very well into the space, and without risk of touching / made contact or vibration. This is potentially a very good solution. With the caveat just to watch those loose cables that can be an issue sometimes. Check for a free rotation after screwing all together. The fan cable just hang out the back (on back left side), routed around the rubber corner, and out through the new 7mm gap.


Usage
========

The fan characteristic is most similar to the discontinued Scythe Gentle Typhoon (Scythe GT), the 1100rpm -13 variant model number. Expect the fan performance to be a little bit less than the Scythe GT but still excellent none the less. As a bonus, the styling / color is very good and most closely matching the original PSU fan.

You will need to plug the fan either into your PC motherboard, or else a dedicated fan controller. The PSU itself cannot drive it because the range of voltage levels given by the PSU are tailored specifically for the stock PSU fan only. And are therefore (unaltered) are never going to be correct to make this fan spin at appropriate speeds.

You could try modding the PSU further or adding extra voltage level conversion circuit in-between. However its not really simple then anymore. Especially because there is just no free room whatsoever inside the PSU, it is so crammed.

Most ideal solution is that you might already have some ASUS motherboard, which have a built-in header for plugging in external temperature sensor. That can be placed / routed to be inside the PSU chassis and then in ASUS BIOS can be set to control the PSU fan speed. All through the motherboard itself.


Result
=======

Sorry I have not had change to test this PSU mod myself yet. But hopefully in next 1-2 weeks I will have my motherboards back from RMA. And can try it then.

Will also need a little more researching. To find out what exactly the CFM / rpms curve are supposed to be at a range of measured PSU temperatures. So as to match the behaviour of the original stock fan. I cannot test for that.

Perhaps the neeeded info can be gleaned on the web. If cross referenced multiple sources. By determining the common measurements of airflow / CFM of the stock fan and mapping that onto new fan. Here is 1 part of the infos, (but not all of it):

https://hardforum.com/threads/silverstone-sx500-lg-500w-gold-sfx-l.1834746/page-12#post-1041441547

Otherwise its just generally to be noticed that there is a certain minimum rpm above which these Noiseblocker fan become a lot more effective. As shown in "silentpcreview" website, fan roundup 6, page 4, table 2. Link: http://www.silentpcreview.com/article1266-page4.html

Anyway, this "Noiseblocker Multiframe M12-S1" starts to kick in with a good returns in performance at the level of 840 rpm, and going higher up. So then 840rpm is best baseline speed to configure / for the minimum level.
 

drahte

n00b
Joined
Dec 25, 2014
Messages
3
Does any one know thre thermocouple location on the V1.0 or V1.1 SFX-L 500s ?

Its been more than a year that I did 25mm fan mod and my fan is running 24/7 but I want to install a thermocouple to the OEM location and run the Silverstone's fanless operation with 41 C threshold.
 

Swelldude

n00b
Joined
Sep 8, 2017
Messages
1
Hello People,

I couldn't stand the rattling noise of my SX500-LG and replaced the original fan by a Slim 120mm 1200rpm Scythe Fan and its working just fine! The Scythe fan is even slimmer than the original one and is pretty easy to install. I just cut the cables at a good length and soldered the ends together. After that I sealed the exposed wires with a heat shrink tube and put them back in place.

Unfortunately i lost the garanty but also the noise! :)
 

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qhash

Weaksauce
Joined
Oct 25, 2011
Messages
107
I know that this thread is two years old but my question is - did they fix that noise issue? SX500-LG is still being sold and actually if not that reported problems, I would already have bought one. So, anyone?
 

Smitty2k1

Gawd
Joined
May 31, 2005
Messages
650
I know that this thread is two years old but my question is - did they fix that noise issue? SX500-LG is still being sold and actually if not that reported problems, I would already have bought one. So, anyone?
I'm still using it in my server to power an Intel Xeon-D and six 3.5" hard drives without noise complaints.
 

Epos7

Limp Gawd
Joined
Aug 31, 2015
Messages
296
I don't know. I had one when it originally released and sent it back to Silverstone to resolve the noise issue. The replacement unit was even worse so I switched to the Corsair SF600. Even that I had to replace the fan with a Noctua, but now I'm happy.
 
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