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450w PSU enought?

Last response: in Components
June 6, 2012 7:44:45 AM

Hell THW peep, how are ya?

I recently bought an FX 4100 and an asus m5a78l-mlx mobo, with 4gb of RAM, and i was wondering if its safe to use my 450w with two +12v one of 14 amp and other of 16amp with just one hdd, a DVD reader and a Radeon hd4850 512mb ddr3.

I dont have money to buy a new PSU yet, so i want to know if i can hold up with what i have until i can change it.

Thanks beforehand for your answers, cheers!

More about : 450w psu enought

a b ) Power supply
June 6, 2012 7:58:31 AM

Yes your 450w unit should be sufficient.
I believe, the 4850 uses around 8-10amps on the +12v.
a b ) Power supply
June 6, 2012 8:09:55 AM

should hold assuming that the psu works with specified values
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June 6, 2012 8:16:34 AM

Forgot to Mention ive been running an E5400, and 2hdd for about 2 years with that psu and gpu without any trouble at all.
a b ) Power supply
June 6, 2012 8:18:36 AM

Pituchilon said:
Forgot to Mention ive been running an E5400, and 2hdd for about 2 years with that psu and gpu without any trouble at all.

It should hold up until your upgrade(PSU).

btw, which brand is it?
June 6, 2012 8:25:25 AM

Its a Bangho PSU, its a national brand. Every computer at my job place is made by that brand, im part of the tech support of it and i havent got issues with these PSUs so far, actually i got this one from there cause it was a brand new spare (we have tons of em).
Of course, they dont use as power consuming rigs as my rig atm with the fx 4100, but they seem to hold up ok, i dont like the brand but well, its what i can buy atm...

i was looking to buy a 650w Topower as a replacement, i dont like the Coolermaster psus we get of the same price.
a b ) Power supply
June 6, 2012 8:52:08 AM

Like I said, it should work.
When upgrading, go for a quality brand like SeaSonic, Corsair, Antec, OCZ.. etc.
nobody likes cooler master PSUs :p 
June 6, 2012 9:13:16 AM

I plugged this rig (WITHOUT GPU) in with that psu and i notice a constant kind of a a coil whine coming from the psu (i think). Is it normal? cause this didnt happened before... and the mobo's soundboard is freaking out, plugging and unplugging, basically, leaving me with no sound whatsoever.
Did i mess up my rig?

forgot to mention, i just disabled a c6 state thingy in the bios and the noise volume seems to have gone down a few notches.
a b ) Power supply
June 6, 2012 9:15:58 AM

I don't want to be that guy. but "bangho" ? really?!?! lol
June 6, 2012 10:34:18 AM

Would a Topower EP-600PM be enought for this rig?

unksol said:
I don't want to be that guy. but "bangho" ? really?!?! lol

Do you have anything to say about this or youll just mock?

a b ) Power supply
June 6, 2012 10:45:34 AM

What do you mean by a coil whine?
Try re-seating your sound card.

Stay away from local PSUs, they might work at times, but why put the fate of your Hardware components on the hands of a cheap PSU.
Where are you buying from? Isn't a good popular brand available?
June 6, 2012 11:22:58 AM

About the PSU, sadly no, we dont get that many brands in the mid end section... i can get that Topower, Cooler Master EPP 550w or a lil bit higher a Thermaltake TR600 luckily... and maybe i can get a Sentey ERP600 i think... judging by the specs, the Topower seems really good, since the CoolerMaster delivers pretty much the same than mine (+12v x2: 16a)

About the noise, since i turned it on, when it gets to the OS desktop (either Linux or Windows) it makes this strange frequency noise, like its getting the cpu load and making it noise. This happens WITH and WITHOUT the GPU plugged in, it was kinda quiet until i installed the catalyst drivers, then it got persistant, no crashing or bsod, even after gaming, tho... just that noise.

Im pretty sure it comes out of the PSU. im writing from my old rig right now, and there's no coil whine whatsoever coming out of it... its odd since it does it in the new rig even when i take the 4850 off...

What could it be? Check it out:

About the sound, what is really strange is the fact that the sound wasnt working when i plugged in Linux (Ubuntu 12.04), then i ran Windows 7 x64, it worked after i installed the drivers (Nor Audio or Ethernet were working with the p&p drivers)

and now the CP is constantly giving me the "new connector plugged" and "unplugged", so i have no audio now, i reinstalled the drivers, tried new ones but problem persists.

And also, since i installed the drivers i get this "Digital Output" device i have no idea what it is (in my previous rig it wasnt shown by the realtek audio manager) and once even Ethernet stopped working too.

Tried changing stuff in the BIOS, nothing...

Something odd is that appears to be transmiting a similar frequency to my speakers even tho the sound board doesnt work, if i plug it, it sends noise to the speakers (look at the video above, youll see what im saying, i was pushing the volume up to make it hearable, but you get the point)
a b ) Power supply
June 6, 2012 2:55:28 PM

Pituchilon said:
Do you have anything to say about this or youll just mock?

I am not mocking you. for all I know "Bangho" makes great PSUs. I doubt it. most companies don't. but lets be honest "Bangho" is a pretty hilarious name for a company
a c 158 ) Power supply
June 6, 2012 6:23:59 PM

Stay away from the CM Extreme Power Plus 550W; low efficiency and can't deliver it's rated power: I would also stay away from the Topower PSUs. Review of several Topower series PSUs at X-Bit Labs:

Sentey is manufactured by Super Flower and SF makes some nice PSUs. The ERP600 are not among their better PSUs; 38A on the 12V rails is weak for a 600W PSU. If your shop carries the Sentey Hard Blue Power or Golden Steel Power, then I would consider either of them to be a good option...especially the Golden Steel.

The Thermaltake TR PSUs are hit and miss; the older models had some reliability issues. TT re-did the line and they are now a decent product; if you go this route, then be sure to read reviews on the specific model numbers that you are thinking about buying. If they carry Thermaltake's Tough Power series of PSUs, then that is another good option. The Toughpower PSUs are solid, good quality PSUs.
a c 158 ) Power supply
June 6, 2012 6:25:16 PM

Any other potential PSU mfrs that we can give you advice on? Is there a website that gives a list of PSUs for us to take a look at?
a c 158 ) Power supply
June 6, 2012 7:33:27 PM

The HD 4850 will draw around 12-13A at full load. I doubt your current PSU has two 6-pin PCIe power connectors so you'll have to use a molex-PCI adapter to be able to use your current PSU. You can give it a shot and see if your PC is stable with your current PSU, but you'll likely be pushing that PSU when your system is at full load. If you run into stability issues, then the first thing that I would suspect is the PSU struggling to provide the required power.

Those prices are high for the quality PSUs that are available. On that site, the only one that I would consider is the Thermaltake TR2 600W.
June 6, 2012 7:41:09 PM

Actually the 4850 requires ONE 6-pin pci-e which my psu does have, and im actually running it right now (like i did for over a year) with that psu and my previous rig (Dual Core E5400) without any noise, or random reset, or anything, ive been gaming heavily with this rig, gpu and psu for a long time and nothing went wrong, is this new rig thats causing me troubles...

Weird thing tho is that with the new rig WITH and WITHOUT the GPU it does this weird frequency noise, you would think that without the gpu things would even out for the psu...

but the onboard soundcard as i said its not working properly (keeps on plugging and unplugging in windows and linux, since the first time i booted up without the gpu) in the new rig, so, could it be that the onboard sound card of the new mobo came damaged and its whats causing the noise coming out of the psu??
a c 158 ) Power supply
June 6, 2012 9:17:48 PM

Some of the HD 4850s require two:

I've heard of old PSUs paired with newer mobos or GPUs resulting in coil whine. It could be that or it could be a faulty mobo. Do you have another PSU that you could try to use in your PC? Maybe a friend's PSU? Is this a clean install? Have you tried using the old mobo/CPU and do you still get the whine with the old mobo? Did you get the most recent mobo drivers from MSI? If it's happening in both Linux and Windows, then that does point towards hardware. If you got it from a local shop and it's still within the shop return period, then I'd consider taking it to them to have their techs take a look at it too.
June 6, 2012 9:36:09 PM

Mine requires just one and with this psu runs like a charm.

It could be what you say, old psu, new mobo = coil whine. Any risk there?

Its an Asus mobo. i bought it two days ago.

yes, i tried the cd drivers and the latest drivers from theyre page.

Its a clean install, as i said, tried linux live, installed linux (no audio whatsoever, weird since in the old rig with the same onboard soundcard it was working, since its plug and play), and then i tried Windows 7 x64 and x86... same coil whine, and the sound card started freaking out when i plugged in the speakers it started to give constant "plug" and "unplug" warnings, hence, no sound...

As i said: Right NOW while writing Im using the PSU with my old rig (e5400, 4gb, 3 hdd, 1 dvd writer and the 4850) and its not doing the coil whine, everything is silent and cool, its with the new mobo and cpu (With and WIthout the GPU) that the coil whine starts. Never had any trouble with this combination at all, no restart, heat, bsod, or anything, it always ran properly.

Check it out, this is the sound it does WITH and WITHOUT the 4850 plugged

What could it be? (Coil Whine and Sound card freaking out)
a b ) Power supply
June 6, 2012 10:42:42 PM

you missed it, it's right above the 9800 listing.
June 7, 2012 2:25:24 AM

Those are the dual gpu ones bro, 4850x2 and GX2 9800.
a b ) Power supply
June 7, 2012 2:41:05 AM

ach, my mistake. thanks.
June 7, 2012 3:17:43 AM

No problem bro, my GPU is the least demanding one, has only 512mb and gddr3 and by XFX so is basically the factory one.

Any idea about what i said before about the mobo and onboard soundcard?
a b ) Power supply
June 7, 2012 5:50:52 AM

Try disabling C1E, K8 Cool& Quiet, C6 support & other energy saving options in your BIOS.
a b ) Power supply
June 7, 2012 6:03:58 AM

If you're not entirely sure which part is giving off coil noise, you can get a cardboard tube, like from toilet paper and listen through that until you've isolated the sound.

If the part giving off the coil noise is still under warranty, send it in. If not, you can use nail polish to reduce the noise from the offending part.

good luck!
June 7, 2012 6:36:06 AM

Its the PSU, but it only happens with the new CPU and Mobo with and without the 4850, it just starts doing that noise... i think its when i install the audio drivers, otherwise it remains shut for a while, i recently uninstalled the audio drivers and everything was quiet.

Funny thing is that the onboard soundcard, as i said, doesnt work properly hence it wont work with anything, i plug in speakers, mic, heaphones, and it starts flipping out, spamming the *** out of the "new device connected" and "device disconnected".

And Im using that PSU right now as i write with my e5400 and the 4850, and 3 hd, and a dvd writer and everything is quiet.

Ill record a sample for you if im not clear.