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Noise Issue with New build! Suggest a new PSU!

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October 17, 2010 6:07:48 PM

http://www.tomshardware.com/forum/296427-31-build-makes...

ok so here is the original thread describing my problem and it has my build in it. I talked to the guys at the tigerdirect store near my house (they built the system for me and gave me a good price)

They said the noise could be an overloading capacitor on the mobo or the PSU (if its the mobo they will replace it for free if its the PSU im assuming i gotta buy a new one)

Anyways is there a way i can figure this outmyself and regardless can anyone suggest a new PSU for me? I do plan to get a new GPU when the ATI 6xxx series come out ill prob get a 5850 or something during the xmas break and maybe a new monitor.

the noise it makes on poweroff is a fizzling/static sound
October 17, 2010 6:37:10 PM

i would like the new PSU to be able to support 2 5850s or i guess maybe even the 6xxx series in crossfire.....

from reading reviews i hear the 650TX is a good PSU....whats the big diff between the TX and HX versions from Corsair?
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October 17, 2010 6:42:53 PM

The 650 from corsair is a good choice. The TX and HX difference is one is modular meaning the different cords come out and you can use only the ones you need, reducing clutter but it is also considerably more expensive
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October 17, 2010 6:46:17 PM

ahh ok....

1) so would a 650tx be ample for my needs/build and allow me to say crossfire 5850s or 5870s in the future or i guess 6850s if it came down to it?

and

2) any ideas if these guys are right about an overloading capacitor? cuz from the old post most said its not a big issue
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October 17, 2010 6:54:15 PM

1. For 5850s and 5870s no as the TX only has 2 6 pin connectors you need 4 for xfire however the HX650 has 4 as well as 750TX, for 6850s the specs are out yet so there is no way of knowing yet.
2. I have no clue ask in the psu forum.
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October 17, 2010 6:57:00 PM

ok so what is the minimum i need to crossfire 5850s/5870s (my mobo doesnt allow SLI just crossfire) so id like to be able to crossfire 5850s which is prob what ill be upgrading to eventually (1 at first)
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October 17, 2010 7:00:11 PM

and i dont need it to be corsair ive just read great things so if you can recommend another brand that has 4 PCI 6 pins let me know that will support xfire for 5850/5870s
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October 17, 2010 7:13:15 PM

i actually found a 750TX for 99.99 Canadian at canadacomputers so if i need a new PSU ill probably pick that up
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October 17, 2010 7:16:08 PM

and they have the 650HX for 10$ more....which one should i get?
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October 17, 2010 7:23:27 PM

I would get the more watts over modular
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October 17, 2010 7:24:43 PM

so literally modulars only "advantage" is convenience it doesnt provide any performance gain or anything....the HAF922 has cable management anyways so if thats the case i agree ill get the 750TX
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October 17, 2010 8:30:32 PM

For 5850 crossfire you need a 650W PSU, for two 5870s a 750W PSU.

Yes that is the only absolute advantage. But in the case of TX vs HS, the modular HXs are also more efficient and tend to have better electrical performance than their TX counterparts.

I would advocate a 750W PSU to keep your options open and after a quick check it appears that the 750TX is a pretty good option @ $99.
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October 17, 2010 8:54:44 PM

thanks for all the input and advice
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October 17, 2010 9:22:35 PM

just 1 question

i notice some PSUs like the 750tx have 4 Pcie 6 pin adaptors

others like the HX series have 6/8pin adaptors (meaning they works with both 6 and 8 pin right?)

whats the advantage/need for 8 pin?
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October 17, 2010 9:37:07 PM

jasonp12 said:
just 1 question

i notice some PSUs like the 750tx have 4 Pcie 6 pin adaptors

others like the HX series have 6/8pin adaptors (meaning they works with both 6 and 8 pin right?)

whats the advantage/need for 8 pin?

mostly for power hungry cards that pull over 200 watts use least one 8 pin

you could also look into the antec tpn 750 http://www.canadacomputers.com/product_info.php?cPath=3...
better then the tx750 and semi modular
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October 17, 2010 10:23:44 PM

good thing im Canadian and you listed PSUs much higher in budget...was looking around 89-139 CDN
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October 17, 2010 10:25:12 PM

ty obsidian....btw what makes that better then the 750 TX?

heck i noticed canadacomputers also has a good deal on the 750HX too for that pricepoint it could be an option too....

anyways whats the features/benefits of me getting the 750TX vs. the 750Blue from Antec vs. the HX

to me modular vs. semi vs. non doesnt really matter much (but should it) Id just like a good quality PSU that will last and be able to crossfire or SLI in the future

i also noticed the 750HX has 4x 8pin adapters not 6+2 adapters.....would that be a problem at all with cards that use only 6 pin? or do pretty much all cards support 8pin but only need 6 pin?
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October 17, 2010 11:16:31 PM

crap the 850TX is cheaper then the 750HX......which of those 2 is a better buy for my needs?

god this is soo annoying i duno which PSU to get

750TX
750HX
850TX
or the Antec TP 750W
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October 17, 2010 11:28:19 PM

All of those are good PSUs get the cheapest?
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October 17, 2010 11:33:51 PM

well after shopping around i can basically get a

750TX for 90-100$ CDN
or a 750HX for about 130-140$ CDN

the 850TX isnt worth it as i found its the same price as the 750HX at most places....

so assuming i wanted to even Crossfire 5870s in the future or whatever some other future cards like the 6xxx series might throw out at me....

so would the 750TX suffice or should i chip in more for the HX? or should i get an 850? I liked the antec TP 750 but it only has 2x 6pin and 2x 6+2 pin which i know can be an issue on higher end cards as they need 8pin so i duno about the antec?
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October 17, 2010 11:55:55 PM

i duno why but newegg.ca links do not work its just linking me to the default newegg site....what product is that gime the ID and ill search it
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October 18, 2010 12:00:22 AM

well figured out its the silverstone 750w silver 80plus cert PSU...but yah i buy locally i just use newegg as a reference.....that product would cost me over 160$ because of the shipping and taxes....whereas the 750tx/hx i can get for free shipping...i could even get the Antec TP Blue 750 free shipping because i can get them all at local shops for the prices i listed
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October 18, 2010 1:20:15 AM

The 850 should definitely handle 6k series
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October 18, 2010 2:58:05 AM

ive read its less power consumption then the current 5k series meaning 750 should still be ample?
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October 18, 2010 3:29:10 AM

if no one has suggested it yet, try an elimination process to figure out what is actually causing the noise.

for example power up with nothing connected to the psu, shut down. then connect the board, shut down. so on and so on. that way you can figure out what is causing noise.

anyone see an issue with doing this? could it damage anything? i have used this method to figure out what fans and drives are noisy in my system. so far no problems.

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October 18, 2010 3:34:35 AM

yah but cporro its not EVERY single time its just sometimes.....and very rarely i find it only happens after PC been on for awhile and under some load (gaming/movies)

on a side note back to the PSU debate

prices as follows in CDN dollars and no shipping (free) cuz of local vendors with good prices0

750 TX for 85-99$
750HX for 129-139$
850TX for 129$

so which should i get assuming id like to be able to crossfire in the future with either a 5850/5870 or one of the 6k series card equivalents
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October 18, 2010 4:55:20 AM

well 1 last bump before bed hopefully get an answer as im going shopping tomorrow!
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Best solution

October 18, 2010 8:18:44 AM

The antec has better quality components then the tx its a bit more rubble and a bit better regulated.the hx 750 is a great power rugg but its slightly edged by the xfx750 the silverstone st750 shuts somewhere round the tpn 750 but either way they are all very good but the best value is the antec tpn750 and the xfx 750.but if you want the best of the best you'll be hard pressed to fine better then the seasonic x750 or corsair ax750 they both use the same seasonic guts.incidently the xfx and antec tpn are also made by seasonic
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October 18, 2010 12:14:06 PM

Or just go to jonnyguru.com who gate reviewed every single power supply mentioned
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October 18, 2010 12:37:29 PM

well on johnny guru they have the corsairs listed very well rated..

my problem with the silverstones is no local retailer carries them....

the antec does look great however it has 2 6pin and 2 8pin which i know can be a problem if i say wanted to crossfire 2 5850s or 2 5870s cuz they need 2x 8 pin per card dont they?
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October 18, 2010 12:41:24 PM

also how should i really determine if i need 750 or 850w?
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October 18, 2010 12:51:52 PM

well reading reviews and prices on the XFX Black Edition look great and NCIX has them at a decent price 134 for the 750w and 139 for the 850w + both come with a 20$MIR

so might get one of those now instead....

seasonic isnt really available in Canada (least not readily avail) and Antec is kinda a pain to find and the ones i can find the prices arent that good on them

So its either the corsairs or the XFX id like to keep this under 130$ CDN the less the better (which is why i was looking at the 750TX cuz its only 89$)
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October 18, 2010 2:53:40 PM

Actually the 5850 uses 2 6 pins and a 5870 uses a 6 pin and 8 pin the 5870 matrix uses 2 8 pins
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October 18, 2010 3:29:36 PM

ok well ive found out my current PSU is actually 100% fine, the noise is from my speakers (finally figured it out)

but regardless i want a new PSU for when i get a new GPU....

what is the best way to determine if i need 750w or 850w? Ive gotten different answers....

assuming i want to slightly OC my CPU (AMD Phenom II X4 965 BE) and Crossfire say 2x 5850s or 2x 5870s (or their 6k series counterparts) what would i need
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October 18, 2010 5:07:26 PM

for 5850 with some Oc 650 is fine and 750 for the 5870's but a good 650 will handle them
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October 18, 2010 5:09:58 PM

so your saying nad a 750TX for 85$ vs. the XFX Black 850w for 119$?

Both in CDN after MIRS....as the 750tx will be more then enough?
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October 25, 2010 2:24:42 AM

Best answer selected by jasonp12.
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