Question Best 750 watt PSU for $100 or less.

MarkJohnson

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I may need a new PSU and was looking for a good one for $100 or less.

Probably closer to $90 as I live in Washington State and I have to pay online taxes now.

My current Seasonic X650 650 watt 80-Plus Gold PSU, kicks off when gaming certain games.

EDIT:

My PC Specs are :

Asus Prime X470-Pro motherboard (Latest BIOS)
AMD Ryzen R5 1600 (no overclcock/water cooled)
16 GB Corsair RGB 3,200 MHz RAM
Dell Vega 64 8 GB (shared water loop with CPU)
Water Cooling kit: EK A240R (All aluminum 240 mm dual fans)
PSU: 6-year old Seasonic X650 Gold 80-Plus rated
 
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Darkbreeze

Titan
Moderator
You are going to need to scrape a few more bucks together if you want a unit with anything like decent quality, and a Gold rated efficiency. I would sure as hell never pay nearly 100 bucks for a bronze rated unit, even though the efficiency isn't strictly a measurement of the quality. Problem is there are no longer any particularly decent quality units that are NOT at least Gold rated anymore. Anything that is bronze will be a strictly budget oriented platform and have budget oriented quality. And currently power supplies are expensive because they ALL come from China and they are ALL subject to tariffs. Plus, rare earth materials are a factor in the prices currently as well. This is the highest I've seen the standard cost of power supplies at for more than five years, but near 100 dollars, this is probably the best unit you are going to find right now and you're still going to have to add a few more bucks to it.


PCPartPicker Part List

Power Supply: SeaSonic FOCUS Gold 750 W 80+ Gold Certified Semi-modular ATX Power Supply ($101.00 @ Amazon)
Total: $101.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-09-09 01:22 EDT-0400



Now, if you want a 650w unit, then this would be perfect. Seasonic is the OEM on this unit.

PCPartPicker Part List

Power Supply: Antec Earthwatts Gold Pro 650 W 80+ Gold Certified Semi-modular ATX Power Supply ($87.99 @ SuperBiiz)
Total: $87.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-09-09 01:28 EDT-0400
 

jankerson

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I may need a new PSU and was looking for a good one for $100 or less.

Probably closer to $90 as I live in Washington State and I have to pay online taxes now.

My current Seasonic X650 650 watt 80-Plus Gold PSU, kicks off when gaming certain games.

What graphics card?

We need to know that.

The X-650 is likely still in warranty too so....
 
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MarkJohnson

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I'm sure the PU is out of warranty. I purchased it in 2013.

I was also thinking that it might be my configuring of power cables. My PSU has two PCI-e power cab;es, and each cable has two 8-pin power connectors. My new case (Lian Li Dynamic 011) has a glass side and front, so I only used one cable.

Maybe if I put both cables on it, then it would supplement the power better? Or are the two GPU power rails actually a single rail?
 

jonnyguru

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I'm sure the PU is out of warranty. I purchased it in 2013.

I was also thinking that it might be my configuring of power cables. My PSU has two PCI-e power cab;es, and each cable has two 8-pin power connectors. My new case (Lian Li Dynamic 011) has a glass side and front, so I only used one cable.

Maybe if I put both cables on it, then it would supplement the power better? Or are the two GPU power rails actually a single rail?
Give it a shot (splitting up the PCIe cables), but it could just be a compatibility issue. Vega 64 has some wicked transient spikes that trip a lot of PSUs; especially older ones like yours.
 
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Darkbreeze

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Moderator
There are several members, including one of our moderators, who have had almost identical issues with Vega 64 cards. In fact, one of them had a Seasonic Prime Ultra Titanium 550w unit that was tripping protections from the spikes and he had to upgrade to the same unit in a 650w model. No such problem since then.
 

MarkJohnson

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OK, I tried putting both 8-pin power cab;e to the graphics card and it still does it.

I guess the PSU needs replacing? Or maybe the GPU?

Considering the water loop and budget, I'll go with the PSU option and hope for the best.

What would you recommend for the PSU? I could maybe go $150 if I have to. Just eat out less often for the month. lol
 

MarkJohnson

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Thanks for the reply.

Do you think Gold rated will be enough? I already have gold rating and it's failing. Would Platinum or Titanium be a better choice?

I'm not sure if it's a power issue or technology issue. More power or higher rating. Maybe both high power and better rating.
 

FALC0N

Splendid
Thanks for the reply.

Do you think Gold rated will be enough? I already have gold rating and it's failing. Would Platinum or Titanium be a better choice?

I'm not sure if it's a power issue or technology issue. More power or higher rating. Maybe both high power and better rating.
I think Bronze is enough. The difference in efficiency just doesn't make enough of a difference in my book unless you are running that unit 24/7. Focus on a good unit first and efficiency second.
 

Darkbreeze

Titan
Moderator
Here's what I have to say about efficiency ratings. Keep in mind, Gold, Bronze and other ratings have ZERO to do with the quality of the unit other than the fact that you are likely these days to see Bronze ratings only on budget models. There are a number of "Gold" rated units that are crap.


If the platform isn't good to begin with, how many watts or amps it says it can support is irrelevant.

Let's start with the biggest misconception out there, which is that if a unit has high watts it will be ok or is good. Well, that couldn't be further from the truth.

There are plenty of 750-1000w units out there that I wouldn't trust to power a string of LED lights and might in fact be a much worse choice than a unit with a significantly lower listed capacity.


If the platform isn't good to begin with, whether or not it has an 80plus certification is irrelevant.

Higher 80plus certification doesn't mean anything, UNLESS it is a PSU platform that we already know is good anyhow. For example, a Seasonic Prime platinum unit is going to be a better product than a Seasonic Prime Gold unit, because we already know the Prime platform is very good, and platinum efficiency along with it shows there are some improvements internally to account for the higher efficiency.

In a case like that, it might be worth it. It's likely the unit will create less heat, it will probably have better performance in regard to ripple, noise and voltage regulation. It might shave a few pennies, or dollars, off the electric bill over the course of a year.

Other than that, it is not going to perform any better than the same platform with Gold efficiency. On the other hand, just because a unit has Titanium 80plus ratings doesn't mean the unit is any good at all. For example, there are Raidmax units with Titanium efficiency and I wouldn't trust one of those to power a light bulb. There are a lot of units like this out there.


Whatever you do, don't EVER buy a power supply based on whether it has RGB or lighting, or looks like it might be a quality unit. Some of the biggest hunks of junk out there look just as good as a Seasonic Prime Ultra Titanium, but I assure you, they are not. So far there are very few very good units out there that have RGB built in. Maybe one or two models, but rest assured you'll be be paying for the lighting, not for the quality of the power supply.

I don't know what country you reside in, and I know that sometimes it's hard to come by good units in some regions, but when possible, when it comes time to get that PSU, I'd stick to the following if you can.

Seasonic. Seasonic isn't just a brand, they are a PSU manufacturer, unlike many of the PSU brands you see they make their own power supply platforms AND a great many of the very good PSU models out there from other brands like Antec, Corsair and older XFX are made by Seasonic.

Just about anything made by Seasonic is good quality for the most part. There are really no bad Seasonic units and only a very few that are even somewhat mediocre. They do make a few less-good quality OEM style units, but mostly those are not going to be units you come across at most vendors, and they are still not bad. Also, the S12II and M12II 520 and 620w units are older, group regulated models. At one time they were among the best units you could buy. Now, they are outdated and not as good as almost any other Seasonic models. They are however still better than a LOT of newer designs by other manufacturers.

The Seasonic 520w and 620w S12II/M12II units CAN be used on newer Intel platforms, if you turn off C6/C7 in the bios, but I'd really recommend a newer platform whenever possible. Prices are usually pretty good on those though, so sometimes it's worth accepting the lack of DC-DC on the internal platform. Higher capacity versions of the High current gamer are not based on that platform, so they are fine. Those being the 750w and higher versions.

Most common currently, in order of preference, would be the Seasonic Focus series, then Focus plus, then Prime, then Prime ultra. It's worth mentioning that there are generally Gold, Platinum and Titanium versions within each, or most, of those series, but that does not necessarily mean that a Focus plus Platinum is necessarily better than a Prime Gold. It only means that it scored better in the 80plus efficiency testing, not that the platform is better.

Again, don't let yourself get tangled up in the idea that a higher 80plus rating specifically means that it is a better unit than another one with a lower rating, unless you know that it is a good platform from the start. All these Focus and Prime units are pretty good so you can somewhat focus on the 80plus rating when deciding which of them to choose.

Super Flower. Super Flower is another PSU manufacturer. They are like Seasonic and they make power supplies for a variety of other companies, like EVGA. Super Flower units are usually pretty good. I'd stick to the Leadex, Leadex II and Golden Green models.They also make most of the good units sold by EVGA like the G2, G3, P2 and T2 models.

Super Flower doesn't have a very broad availability for the units with their own brand name on them, and are not available in a lot of countries but for those where there is availability you want to look at the Leadex and Leadex II models. The Golden green platform is fairly decent too but is getting rather long in the tooth as a platform AND I've seen some reviews indicating a few shortcomings on units based on this platform.

Even so, it's a great deal better than a lot of other platforms out there so you could certainly do worse than a Golden green model. Units based on the Leadex and Leadex II platforms are much better though.

Corsair. The CX and CXm units are ok as a budget option, but I do not recommend pairing them with gaming cards. The newer 2017 models of CX and CXm are better than the older ones, but still not what we'd call terrific, so if it specifically says 2017 model, or it has a capacity other than an even 100, like 550w, 650w, 750w, etc., then it's likely at least better than those older ones. Aside from that, any of the TX, RMx, RMi, RM, HX, HXi, AX or AXi units are good. Those are listed from best to worst, with the best being the AX and AXi units.

Antec. The True power classic units are made by Seasonic, and are very good, but are not modular. The High current gamer 520w and 620w, or any other PSU you see on the market that is 520w or 620w, are also made by Seasonic, based on the S12II and M12II platform for modern versions, and are pretty good units but again they are an older platform that is group regulated so if you go with a Haswell or newer Intel configuration you will want to avoid those because they do not support the C6/C7 Intel low power states.

The Antec High current gamer 750w and 850w units are very good and are not the older design, which came in 520w and 620w capacities and were good for back then but again, are an aging Seasonic platform that is not the best choice most of the time these days. Occasionally, these older units MIGHT be the best unit available and you could do worse than one of them, but a newer DC-DC platform is desirable when possible if it doesn't mean sacrificing quality elsewhere in the platform. There are however older and newer HCG models, so exact model number will likely be a factor if choosing one of these however both the older models and the newer models are good.

Antec Edge units are ok too, but reviews indicate that they have noisy fan profiles. I'd only choose this model if it is on sale or the aesthetics match up with your color scheme or design. Still a good power supply but maybe a little aggressive on the fan profile. This may have been cured on newer Edge models so reading professional tear down reviews is still the best idea.

Antec Earthwatts Gold units are very good also.

BeQuiet. BeQuiet does have a few decent models, BUT, you must be VERY selective about which of their models you put your trust in. From model to model their are huge differences in both quality and performance, even with the same series. If you cannot find a review for a BeQuiet unit on HardOCP, JonnyGuru or Tom's hardware that SPECIFICALLY says it is a very good unit, and does not have any significant issues in the "cons" category, I would avoid it. In fact, I'd probably avoid it anyhow unless there is a very great sale on one that has good reviews, because their units are generally more expensive than MUCH better units from Antec, Seasonic, EVGA and Corsair.

EVGA. They have BOTH good and not very good models.

Not very good are the W1, N1, B1, B3 (Most models failed testing), BQ, BR, BT and G1 NEX models.

Good models are the B2, G2, G2L, G3, GQ, P2 and T2 models.

FSP. They used to be very mediocre, and are a PSU manufacturer like Seasonic and Super Flower, although not as well trusted based on historical performance. Currently the FSP Hydro G and Hydro X units are pretty good.

I would avoid Thermaltake and Cooler Master.

They do have a few good units, but most of the models they sell are either poor or mediocre, and the ones they have that ARE good are usually way overpriced.

This is just ONE example of why I say that. Very new and modern CM unit. One of the worst scores ever seen on JonnyGuru for a well known brand name product. Doesn't look to be much better than a Raidmax unit. Sad.

Cooler Master Masterwatt Lite 600W review

And most of the models I have linked to the reviews of at the following link are at least good, with most of them being fantastic.

Power supply discussion thread

The Powerspec units sold my Microcenter are a mixed bag. Some of them are fairly decent using the same platform as the Sirfa High power astro lite platform, so not total dumpster fire type units, but not particularly good either, and some of their units are simply garbage and should be listed below in the DO NOT USE category, but I'm leaving them out because there are really no reviews of them and since there are a few units from them that are ok-ish, I'm giving them a "use at your own discretion but buy a better model if you can" grade.

A gray label CX or CXm unit would probably be an upgrade from one of those Powerspec models, without any doubt.

Certainly there ARE some good units out there that you won't see above among those I've listed, but they are few and far between, much as a hidden nugget of gold you find in a crevice among otherwise ordinary rocks and don't EVER assume a unit is good just because of the brand.

If you cannot find an IN DEPTH, REPUTABLE review on Tom's hardware, JonnyGuru, HardOCP, Hardware secrets (Old reviews by Gabe Torres), Kitguru (Only Aris reviews), TechPowerUP, SilentPC crew or a similar site that does much more than simply a review of the unboxing and basic tests that don't include reliable results for ripple, noise, voltage regulation and a complete teardown of the unit including identification of the internal platform, then the unit is a big fat question mark.

I recommend not trusting such units as companies generally always send out review samples of any unit they feel is going to get a good review, and don't send them out if they know they are going to get hammered by the reviewer. No review usually equals poor quality. Usually.


Other models that should never be trusted OR USED AT ALL, under any circumstances, include

Acbell, A-Top, AK Power, Alpine, Apevia, Apex (Supercase/Allied), Artic, Ace, Aerocool (There might be one model worth using, but I'd still avoid them.), Aspire (Turbocase), Atadc, Atrix, Broadway com corp, Chieftech, Circle, CIT, Coolmax, Deer, Diablotek, Dynapower, Dynex, Eagletech, Enlight, Eurotech, Evo labs, EZ cool, Feedtek, Foxconn, G7, HEC/Compucase Orion, HEDY, High power, iBall, iStar computer co., Jeantec, JPac, Just PC, Kolink, LC Power, Linkworld electronics, Logisys, Macron, MSI, NmediaPC, Norwood Micro (CompUSA), Okia, Powercool, Powmax, Pulsepower, Q-tec, Raidmax, Rave, Rocketfish, Segotep, SFC, Sharkoon, Shuttle, Skyhawk, Spire, Startech, Storm, Sumvision, Tesla, Trust, Ultra, Wintech, Winpower, Xilence (Until I see a reputable review of a model showing different), xTreme (Cyberpower), Youngbear and Zebronics.
 
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MarkJohnson

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I broke the piggy bank and went for the higher watts and higher rating and got the Seasonic Prime Ultra 750 Watt 80-plus Platinum PSU that I was originally going to buy.

I decided to stick with Seasonic as I've used them forever. I'll look into RMA for this Seasonic X650 Gold as it is actually still under warranty even though I bought it in 2013. But I can't wait for RMA turn around and just decided to this one one that is likely overkill.

Now, hopefully this cures my problem or I will be very upset.

Thanks for everyone's help

EDIT:

And this one has a 12-year warranty, which helped me decide to get it.
 

Darkbreeze

Titan
Moderator
That is a very good purchase, and decision. I myself just recently pulled the trigger on a Prime Titanium Ultra 650w unit. Haven't installed it yet because I am going to sleeve the cables, but I know that one of our mods that had issues with the 550w version of that PSU with his Vega didn't have that problem anymore after upgrading to the 650w version, so at 750w you should be in really good shape.
 

MarkJohnson

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Yeah, I was going to get the 650, but I already had the 650 Gold, so I just spent the extra $30 for peace of mind. I didn't want to have to refund for a replacement on the off change it would still give me issues.

But, I got it Sunday, and so far, so good. I even ran both of my problematic games at once without issues. It seem to pull an extra 20% more power or so, according to my Cyberpower UPS 1500PFCLCD.

Thanks for everyone's help
 

Joakim Agren

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I have the Cooler Master V700 that is a great power supply, it has since been replaced by Cooler Master to the V750 model. The V series in general is great and I believe all Seasonics inside. So not all Cooler Master's are bad. That they are a bit over priced yes, that is almost always the case with Cooler Master regardless of product category. If you want the good stuff from them you need to bring out some more Dineros! :D But you sometimes find good deals on Amazon and newegg. Btw Darkbreeze your link to that Cooler Master review does not work anymore!
 

jonnyguru

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I have the Cooler Master V700 that is a great power supply, it has since been replaced by Cooler Master to the V750 model. The V series in general is great and I believe all Seasonics inside.
The new V Series are made by Enhance, same as the semi-modular VS Series.

The original V series was based off the Seasonic G-Series (predecessor to the Focus series).
 

Joakim Agren

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The new V Series are made by Enhance, same as the semi-modular VS Series.

The original V series was based off the Seasonic G-Series (predecessor to the Focus series).
I see. But at least they are still good PSU's according to the reviews I read. So I guess Enhanced Electronics also make some great power supplies.
 

Darkbreeze

Titan
Moderator
Enhance has, just like practically all manufacturers, both good (Sometimes really good) and bad (Sometimes spectacularly bad) models. Just because something is made by Enhance, CWT, Great wall, Seasonic, Super Flower or any other manufacturer doesn't necessarily mean that it IS automatically something good. Only reviews tell us whether a unit is good or bad. Anything else is guesswork and historical brand reputation.
 

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