I have a Corsair RM750w 80+ Gold PSU, would this be more than enough to power some new additions to my system?

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The_Reaper95

The_Reaper95

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Yeah so my current build includes a a fair few specs but most notably I have a AMD FX-8320 at stock speeds, an R9 270X 16GB of RAM a fair amount of fans (Like 6 fans, 2 in the top, 1 in the back, 1 on the side, one on the bottom and one in the front) a notable large cooler heatsink with another 2 fans on it for my CPU cooler, that sort of thing.

I'm going to get a new case with a new cooler and new GPU (NZXT Kraken X61 and a MSI GTX 970 100 ME) does anyone suggest I get a new PSU for this of much higher quality or am I more than good enough with my RM750?
 
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JackNaylorPE
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JackNaylorPE

JackNaylorPE

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The RM's biggest complaint is bad caps .... that affects the longevity of the unit as well as it's ability to respond to rapidly changing power demands. Where PSU quality primarily comes into play however is overclocking. You'll want to be within the ATX spec of 5% voltage variation for normal usage .... 2.5% for moderate OCs and 1% for ambitious over clocking. Capacitor aging affects the PSU's ability to deliver it's rated voltage.... a Seasonic X series for example might show 5% .... possibly 10% after say 5-7 years .... I'd expect the RM to be as high as 30% after that time.... which is no bugga deal w/ 1 970.
 
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The_Reaper95

The_Reaper95

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Well I'm certainly not going to overclock that much, I may push the 970 to the maximum of it's RECCOMENDED boost clock which is 1279MHz over the base clock being 1140Mhz, and I may in the future overclock my CPU to the reccomended 4Ghz boost clock but that's about it. I currently have my MSI R9 270X OC 4GB overclocked at 1100-1200 Mhz and that runs fine. I was planning on buying a new PSU after about 2-3 years anyway but I wouldn't of kept my PSU for as long as 5-7 years.


I'm just wondering if overall I need to upgrade in the next year because if I don't then I kind of won't bother for at least another year and then I'll upgrade my PSU then.

So for a maximum of a year, is my PSU good enough to have a safe overclocked MSI 970?
 
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M0j0jojo

M0j0jojo

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The PSU is not made for serious overclocks
 
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The_Reaper95

The_Reaper95

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I sort of knew that already but when I was originally building my system I had a budget, so I went and picked the parts from my preferred and favorite site, ordered and then realized I didn't have a PSU in the order, I hadn't spent over my bugdet but I was still without a PSU so instead of ordering a psu from the site I ordered everything else from I simply went on Amazon searched for a gold rated 750w PSU with at least 50 5 star ratings and less than 10 1-3 star ratings in total and it ended up being the RM 750, no time to research and find one so I just ordered whatever was there at the time. I had planned to upgrade after 2-3 years anyway (My PSU in the least)

I've already had my build for about 4-6 months and everythings running smoothly but the PSU always niggles at the back of mind making me wonder if I should get a new one soon XD
 
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JackNaylorPE

JackNaylorPE

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nVidia has tightened down the overclocking so much on their cards both legally and physically that the word "overclocking" almost shouldn't really apply. The measly 0.087 volts that MSI Afterburner allows is not going to be much affected by PSU output. The voltage stability of the RM series might have some negative effect but I doubt it will drop your ultimate boost clock from say 1550 to 1400 Mhz.

As for you getting 1100 to 1200 Mhz, the card comes outta the box at 1140 ... so 1200 is cake.....I'd go for at least 1250 w/o concern.

http://www.guru3d.com/articles_pages/msi_geforce_gtx_970_gaming_review,26.html

With AfterBurner we applied:

Temp Target 80 Degrees C
GPU clock +185 MHz
Power limiter 110%
Mem clock +500 MHz
Volatge + 87Mv
FAN RPM 70% (remains silent)

Core Clock 1325 MHz
Boost Clock: ~1501 MHz
Memory Clock: 8002 MHz
Click to expand...
I would not overclock the CPU with that PSU.

 
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The_Reaper95

The_Reaper95

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Oh feck it, I might as well get a new PSU whilst I am at it because I have no real budget anymore.

I've been looking at the gold rated EVGA PSU's like the SuperNova's or maybe Seasonic are good?

You couldn't happen to suggest me a PSU fine to do some generous overclocking, 80+ gold rated AT LEAST, and if you happen to know the current UK pricing of it.. Either that or at least suggest a brand because I don't really know any other PSU brand than EVGA, Cordsair and Superflower.
 
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The_Reaper95

The_Reaper95

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Picked up a EVGA SuperNova G2, only cost me 90 quid which is really cheap compared to the fact the RM 750 was like 110 when I bought it off Amazon.. Thanks for the extra input!!
 
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