Hi guys I’ve got a system with an rx6800 16bg ram a ryzen 5 4600 a WiFi card and an nvme . I have a super flower 750w from a friend but he lost the 8 pin cables . After buying the gpu im kind of skint so I’m holding off for a few weeks on buying moded cables . Would my original gigabyte p550b psu be okay until then or basically hands off until the new psu can be installed?
550w sufficient while I’m waiting ?
- Thread starter nick c88
- Start date
the p550b is literally a bottom of the barrel psu and not one i would ever consider pairing with a 6800
would it run...yes...just about, but probably not with the gpu fully stressed at 100%
would i trust it...not really
if it were my build i wouldn't
would it run...yes...just about, but probably not with the gpu fully stressed at 100%
would i trust it...not really
if it were my build i wouldn't
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So best option is to just wait until I have the leads for the leadexthe p550b is literally a bottom of the barrel psu and not one i would ever consider pairing with a 6800
would it run...yes...just about, but probably not with the gpu fully stressed at 100%
would i trust it...not really
if it were my build i wouldn't
depends on your circumstances of course, but if it were me, i would wait.
would not trust the p550b not to wreck the rig (esp with that 6800)
Soldato
Another option is to use the 4600G's IGP for now. Take out the 6800 and the 550W PSU will be fine.
All being equal with comparative models, it's not a dud PSU. Using the Radeon software to limit the RX6800 max power usage to say 200W or even 150W if more risk averse, shouldn't be too big of a risk if one was that way inclined. Taking risks is what makes our life better, so I would do it, and if it failed I'd consider it very unlucky, but I'd also hope the PSU protection circuitry did it's job.
For reference I recently cobbled together a system for someone including a 215W RTX 2070 Super, a Ryzen 3700X with 32GB DDR4, 2TB NVME etc, and a Corsair CX550F PSU which appears to compare similarly to the Gigabyte PSU. It's working great for a few days now.
What I mean by comparatively is they are designed to perform similarly.
Subjectively both are garbage PSUs which is why they're cheap or at least sometimes the CX550F is cheap (when on sale) while other times people are asked to overpay for it because of the Corsair branding.
Subjectively both are garbage PSUs which is why they're cheap or at least sometimes the CX550F is cheap (when on sale) while other times people are asked to overpay for it because of the Corsair branding.
People don't realise that branding is just that, and that's especially true in the PSU market. Very few companies make their own, they outsource to the likes of CWT, Superflower, or many others. What you're really buying is a fancy box housing things and customer support/warranty.
Buy on a case by case basis and as such research the individual products. Never buy blindly based on brand.
Buy on a case by case basis and as such research the individual products. Never buy blindly based on brand.
I'm not an expert in either PSU, but I don't think the CX550F is garbage
For example: the P550B is group regulated, so it's not even suitable for modern PCs and when I read the component list in the reviews, the CX550F appears to be far superior. They're both built to a price, obviously, but your PSU is just..., better. THG was surprised the P550B even survived their testing 
I will heed to not messing with it for now I ordered an rm850x I was kinda scared to go for cheaper cause I don’t wanna fry my system I do know that some of the cheaper brands are really good but since I’m a newbie in the building aspect I’m to scared to experiment lol
Soldato
Cracking new psu had one for five years have fun
You could have saved a few quid and gone for an RM750, but depending on price difference, if the 850 was only a couple of quid more expensive, then why not.
As @Gray2233 said you just have to buy an a case by case basis according to price/warranty/performance/quality available at the time.
Soldato
I ran a 3090ti with a rm850x no problem so that psu should do you for a while, I had to rma mine after five years and I've got to say corsair warranty is excellent as I got a free upgrade and it only took four days to come back.