Want to get a new psu not sure of some things

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Aelux5216

Aelux5216

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Feb 7, 2014
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so my old psu is barely keeping my system going since getting my new graphics card and ideally i want to overclock my cpu again so that my graphics card doesnt drag behind as much since i need a new cpu as well but since getting the cpu first would require even more power and proberly cause my pc to not boot at all i figured i would get a new psu and overclock my cpu again until i can afford a better cpu.So i wrote a previous post to double check if i needed a better psu and iv concluded i do and using the list of ratings on this site i have decided on the antec true power classic 750w however im not sure about a few things my current psu has 55amps on one +12v rail and its not enough for my system but the antec has 36 on two seperate rails and dual rails are limited per rail apparently so i was wondering if this dual rail would really work for me and still leave enough room for my overclock and for the new cpu when i get it again not certain on which cpu to get yet but it would likely be one just over £100 and amd because thats just my preference.So would this dual rail be good enough for this or is there another psu in the tier 2 catagory that would work better and is a single rail ? or is the dual rail antec fine? either way i want 700 or 750w again so there is plenty of breathing room.

my specs are currently:
Amd 4100 bulldozer
Powercolor r9 290x
4gb crucial 1333
8gb hyperx red 1600
gigabyte ga 78lmt-usb3
and for extra information i am using 7 or 8 usbs normally and have two screens one 24 inch 1080p 60htz benq one through dvi-d and a 14-15 inch smaller tv screen through hdmi and i have three 120mm fans all with leds.
 
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prit87
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prit87

prit87

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The CPU you currently have will surely bottleneck the card for PSU if you want a good quality 750 watt PSU then get the EVGA G2 750 and for the CPU get the fx 8320 its 99 pounds .

PCPartPicker part list / Price breakdown by merchant

CPU: AMD FX-8320 3.5GHz 8-Core Processor (£99.54 @ Aria PC)
Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply (£84.90 @ Amazon UK)
Total: £184.44
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-11-14 16:59 GMT+0000
 
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geofelt

geofelt

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What psu do you nave now?
55a would be typical of a top quality 650w psu and should be sufficient for your R9-290X.
The card is power hungry and needs 6 and a 8 pin pcie power connectors.
If those came with your psu, you should be ok.
If your current psu did not have those connectors, and you needed adapters. possibly not.

Most psu's actually have only one power generating rail. The 12v1/2/3 you see are artificial UL safety divisions which are largely irrelevant.
The Antec you mentioned actually can only deliver 62a. It is not the total of 36a x 2.

Unless your psu is a cheap unit it is not likely a problem.

I think a FX-4100 should probably be the correct frst upgrade.
You are probably thinking of FX-8350 and overclocking.
Yes, that is a high wattage cpu. It will likely need a better motherboard for overclocking.
I might suggest a intel i5 of some sort and a lga1150 motherboard.
It will perform much better even at stock. And... the intel cpu's are much lower in wattage demand so your current psu would still work.
 
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Aelux5216

Aelux5216

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my psu is the g700 by coolermaster which i was told is a terrible psu despite it supplying 55a my pc is still crashing even on stock and the people on the other post i made said it was down to a bad psu, was they wrong ?
 
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Aelux5216

Aelux5216

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i will consider these thanks but is there any cheaper ones that are still just as good so you know im not too bothered about the psu being modular or not,since my computer is barely functioning i just want an afordable psu that can handle my system and still has room for upgrading but that is also reliable enough to last i while.If there isnt anything like that avaliable then that is fine and i will just have to save up to get the one you recommended.
 
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prit87

prit87

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The PSU wattage wise is okk for your card but quality wise not so much.
The R9 290x requires about 33+ amps.
 
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prit87

prit87

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You can go with this one .
PCPartPicker part list / Price breakdown by merchant

Power Supply: XFX 750W 80+ Bronze Certified Semi-Modular ATX Power Supply (£66.47 @ CCL Computers)
Total: £66.47
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-11-14 17:24 GMT+0000
 
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Aelux5216

Aelux5216

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Feb 7, 2014
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so was the people on the other post abot right with what they said because i wouldnt know what else would be wrong if not that because i tested the cpu and the ram and the hard drive and they all returned with good results so they arent damaged from what i could tell
 
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Aelux5216

Aelux5216

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would this be enough for what i want for certain ?
 
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prit87

prit87

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So what exact problem are you having after changing the card?
 
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Aelux5216

Aelux5216

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constant crashes really i have stress tested using prime 95 for like an hour and a bit while playing a game and it hasnt crashed but then when im jsut using it normally just skyping and playing a game or watching a full screen video of some sort it will just crash not so much a blue screen since everything just shuts off but when it restarted it comes up with an error counting it as a bluescreen.I had my cpu overclocked to 4ghz with my old card and didnt think about that when putting in my new graphics card so as soon as it crashed i reset everything and it still crashed so i turned off the turbo clock thing since setting to default it came back on and even then it crashed less frequently than when it was overclocked of course but even on stock it crashes :L
 
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Aelux5216

Aelux5216

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Feb 7, 2014
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so the gpu could be fault from the very beginning ? i only got it recently so getting a replacement wouldnt be too difficult but i shall find out in a bit and i will run the mem test over night and get back to you as well but is there any way i can keep my pc from crashing until i get the new psu if it is that because changing back to my old graphics card would mean reinstalling the nvidia drivers and stuff :L

edit:have ran the gpu stress test for over 30 mins and it hasnt crashed so the gpu is fine from the looks will update you on the memtest result tomorrow
 
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Aelux5216

Aelux5216

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so i ran the gpu furmark test for around an hour just to be sure and it never crashed and ran the memtest overnight and that had no errors either. Since it kept crashing i have switched back to my old graphics card now and it hasnt crashed once even with the overlock i had on it previously so the only difference is the graphics card and since i know its not faultly from running the furmark test then it must jsut be my power supply after all so i will get the xfx xxx series one soon and then hopefully everything will work thanks for your help :)
 
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prit87

prit87

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No problem.
 
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Aelux5216

Aelux5216

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Feb 7, 2014
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so i got the xfx xxx 750w like i said and it seemed fine at first but then it bluescreened again so i thought okay then maybe the oc on my cpu is just unstable all together set it back to stock and it still crashes again it takes quite a while btu when the crash happens it seems to be either full screen videos or any sort of game,like i said i did a ram test overnight and there was no errors and i have ran prime95 to test my cpu and it didnt crash and since i have changed pretty much everything except the ram and cpu and there is no errors with them then i am out of ideas :(
 
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