Do I Replace parts after blown PSU.

lewispark390 · Dec 19, 2017

As of PSU decided to blow up on me, and now in the process of order a new one.

I’m just not sure that any of the parts survive and no way to tell if they are still working, due to the PSU being well...dead.

I’m gonna take a guess that either the motherboard,CPU,GPU or RAM are the components that died along side the PSU.

The choices I have is to install a new PSU and see what doesn’t and does work if the PC starts up, unless the damaged parts don’t destroy the PSU again.

Or I just buy brand new parts and completely scrap the old ones.

Parts currently

CIT pentium 750u(confirmed dead)
Amd 4130 (not sure)
Gigabyte ga-78lmt-usb3 (not sure, no damage seen)
Amd r7 370 (not sure)
2x4GB ram (not sure)
1TB HDD (not sure)

SethJPC · Dec 19, 2017

Try using a new PSU first, pointless throwing away parts if they still work. What brand was your old one and have you already ordered a new one?

lewispark390 · Dec 19, 2017

I’m not sure what the brand was, as it was 4 years ago when I got it and now I’m scared to touch it due to it sparking and smoking (this was 4 days ago, but I’m still weary)

And no I haven’t ordered a new one

SethJPC · Dec 19, 2017

lewispark390 :

Well, if its fully blown it was likely a cheap one or came with the case? Either way, get a new, high quality 500W or above PSU. Look at this list and get one from tier 2 or above.

aquielisunari · Dec 19, 2017

Let sleeping dogs lie.

Without any info on the new PSU I'd donate them parts and only save the HDD.

Next time you should buy a quality PSU. The dynamo effect you're talking about is not a natural one. Quality PSUs have overcurrent, undercurrent, short-circuit protection and many other safety features. Just because a PSU fails that is not a reason why other parts should fail. None, Zilch. Zero.

lewispark390 · Dec 19, 2017

So do I keep the old parts or remove them?

I know the PSU is dead but there is a chance that certain parts could of survived

jankerson · Dec 19, 2017

lewispark390 :

Get the new PSU and install it etc and see what works and what doesn't.

shrapnel_indie · Dec 19, 2017

It's best to get Tier 2 or Tier 1 PSUs. If you can't afford one, Tier 3 will work... Avoid Tier 5 like the plague as it will do just what your current one did, but this time you could potentially lose your home too. Tier 4, avoid if you can help it. Its weaker or lower quality stuff best not ran real hard.

You can start testing some of your stuff if you have a friend with a GOOD Tier 2 or higher PSU (HDD, GPU, RAM. practically everything.)

If you have to replace, well There's Ryzen R3, maybe R5 or Intel Pentium or i3 that's lower cost options. All will require DDR4 RAM and respective MoBo. (AMD is still cheaper overall because Intel only has the more expensive Z370 chipset on the market right now in the latest gen... older? it's a toss-up.)

lewispark390 · Dec 21, 2017

I’m not sure If necroing threads is bad.

For those who asked what my old PSU was.

It was a Cit pentium 750U. It lasted 4 years and I’ve heard cit ain’t the best for PSU.

aquielisunari · Dec 21, 2017

lewispark390 :

You said 4-500W and now it's 750? Either way, it's dead.

Now what? Have you decided what you're going to do?

studmoose · Dec 21, 2017

What exactly does "blow up on me" mean? It seems to be a subjective term. To some, it might mean smoking, fire, sparking, or noises. To others, it just might mean it's not working anymore, as in giving up the ghost. If it is the later, there probably is no damage to your other components.

Quickly check the mainboard to see of your capacitors are raised. If you are unfamiliar with this, visit badcaps.net (click on 'How to identify' in the upper left) and you can see what they look like when good or bad with images on the right side of your screen. They should have an X on the top and will either be flat or flightly depressed in the center. If they are slightly raised or worse, then your mainboard might have taken a hit. I say might, because some caps are built differently than others. If the caps took a hit, they might be able to be replaced.

If the mainboard is OK, there's a good chance the rest of your equipment is fine. You will only find out after replacing your PSU.

DSzymborski · Dec 21, 2017

lewispark390 :

Yup, that's a junk-tier brand. With PSUs like this, it's a race which you hope that the PSU wins by killing itself with low-grade Chinese capacitors before it kills your components with years of poor voltage regulation and filtering.

lewispark390 · Dec 21, 2017

Just checked motherboard and all seems fine, nothing wasn’t raised or swollen.

So I guess buying a PSU to see if anything works is probably the best bet.

Just need to find a decent PSU now. Im just trying to find one with a 6 pin pci-e connecter for my card but I’m finding barely any.

DSzymborski · Dec 21, 2017

lewispark390 :

I suspect the problem is the PSUs you're looking at; I don't believe there are any non-garbage PSUs in existence in 2017, at least above 300W or so, that *don't* have a 6-pin connector.

lewispark390 · Dec 21, 2017

If someone could help me out and link me a PSU that fits my GPU and motherboard. I’m not gonna lie, I got no clue when it comes to PSU and I just want it sorted. So if you can help me out it will be appreciated

shrapnel_indie · Dec 21, 2017

lewispark390 :

Be glad to help. Just need to know the budget, currency, and generalized locale (Country of residence is close enough.)

As a side note, bad caps are definitely a sign of damage (or weak caps to start with) and will need a replacement. Its also possible to have a board with no sign, physically, of damage, yet chips can be fried or damaged. You'll know more when you can test the parts.

shrapnel_indie · Dec 21, 2017

DSzymborski :

EVGA B3 line:

Something is clearly wrong with EVGA's B3 family. If we had problems with one or two samples, we might chalk it up to bad luck. But this is the third B3 unit in a row to die during OPP testing. {...}

Thankfully, our 750 B3 died quietly, just like the 850 B3. {...} we didn't even bother to let EVGA know its product expired on the bench. After all, the company still hasn't responded to our concerns about the 450 B3's failure, where the main fuse remained intact, creating a fire hazard.

-- http://www.tomshardware.com/reviews/evga-750-b3-power-supply,5229-11.html

The 850 B3 achieves good overall performance, despite the 3.3V rail's bad transient response (hopefully EVGA fixes that as soon as possible, since the rail failed all of our tests). But regardless of a strong showing in most of our benchmarks, this PSU appears to have a serious flaw: our retail sample finished its OPP test and wouldn't fire back up. Apparently, something broke on the secondary side. Although we're glad the 850 B3 didn't blow up like the 450W model, this is our second (so far) B3-series power supply to die on the bench. And given that the 850 B3 is the family's flagship, we are worried about the platform's reliability.

- http://www.tomshardware.com/reviews/evga-850-b3-psu,5186-11.html

In the end, it may not matter because the 450 B3 has other, more serious problems. It looks like Super Flower made a huge mistake in its design, which poses a major safety risk. We noticed that the over-power protection triggering point is set way too high. Even under normal operating temperatures, one of the primary FETs in our store-bought sample, along with some other components, blew up. Either SF should set its OPP point much lower or use components able to handle higher amperage. We were also disturbed by the fact that, after the primary side shorted out, the PSU's fuse didn't blow. Every time we applied power, we saw sparks. Obviously, that's a fire hazard.

Of course, we notified EVGA of our findings, even though the company wasn't able to send a review sample before or after our mishap with the store-bought solution, stating it didn't have any to send. This looks suspicious to us, since plenty of online stores have them in stock.

- http://www.tomshardware.com/reviews/evga-450-b3-psu,5160-11.html

Saddest thing is SuperFlower is the OEM for the B3 line which includes at least one PCIe 6+2 connector.

lewispark390 · Dec 21, 2017

Budget - around £50-100

For a new power supply

jankerson · Dec 21, 2017

lewispark390 :

PCPartPicker part list / Price breakdown by merchant

Power Supply: SeaSonic - FOCUS Plus Gold 550W 80+ Gold Certified Fully-Modular ATX Power Supply (£74.99 @ Overclockers.co.uk)
Total: £74.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-12-21 17:52 GMT+0000

DSzymborski · Dec 21, 2017

shrapnel_indie :

DSzymborski :

EVGA B3 line:

Something is clearly wrong with EVGA's B3 family. If we had problems with one or two samples, we might chalk it up to bad luck. But this is the third B3 unit in a row to die during OPP testing. {...}

Thankfully, our 750 B3 died quietly, just like the 850 B3. {...} we didn't even bother to let EVGA know its product expired on the bench. After all, the company still hasn't responded to our concerns about the 450 B3's failure, where the main fuse remained intact, creating a fire hazard.

-- http://www.tomshardware.com/reviews/evga-750-b3-power-supply,5229-11.html

The 850 B3 achieves good overall performance, despite the 3.3V rail's bad transient response (hopefully EVGA fixes that as soon as possible, since the rail failed all of our tests). But regardless of a strong showing in most of our benchmarks, this PSU appears to have a serious flaw: our retail sample finished its OPP test and wouldn't fire back up. Apparently, something broke on the secondary side. Although we're glad the 850 B3 didn't blow up like the 450W model, this is our second (so far) B3-series power supply to die on the bench. And given that the 850 B3 is the family's flagship, we are worried about the platform's reliability.

- http://www.tomshardware.com/reviews/evga-850-b3-psu,5186-11.html

In the end, it may not matter because the 450 B3 has other, more serious problems. It looks like Super Flower made a huge mistake in its design, which poses a major safety risk. We noticed that the over-power protection triggering point is set way too high. Even under normal operating temperatures, one of the primary FETs in our store-bought sample, along with some other components, blew up. Either SF should set its OPP point much lower or use components able to handle higher amperage. We were also disturbed by the fact that, after the primary side shorted out, the PSU's fuse didn't blow. Every time we applied power, we saw sparks. Obviously, that's a fire hazard.

Of course, we notified EVGA of our findings, even though the company wasn't able to send a review sample before or after our mishap with the store-bought solution, stating it didn't have any to send. This looks suspicious to us, since plenty of online stores have them in stock.

- http://www.tomshardware.com/reviews/evga-450-b3-psu,5160-11.html

Saddest thing is SuperFlower is the OEM for the B3 line which includes at least one PCIe 6+2 connector.

IIRC, SuperFlower farmed some of it out. I suspect they've taken on more than they can handle.

shrapnel_indie · Dec 21, 2017

lewispark390 :

This is the list I'd choose from:

Corsair TX850M Gold TXM Gold ATX 80+ Gold 850W £100.00
Corsair RM750x RMx ATX 80+ Gold 750W £99.96
Corsair TX750M Gold TXM Gold ATX 80+ Gold 750W £87.04
Corsair RM650x RMx ATX 80+ Gold 650W £85.02
SeaSonic FOCUS Plus 650 Gold FOCUS Plus Gold ATX 80+ Gold 650W £94.17
EVGA SuperNOVA 650 SuperNOVA G2 ATX 80+ Gold 650W £85.80
Corsair TX650M Gold TXM Gold ATX 80+ Gold 650W £77.28
XFX P1-650B-BEFX XTR ATX 80+ Gold 650W £79.99

Links to sources can be found here:
uk pcpartpicker.com

The Corsair CS line in the link are just okay on tier level. The EVGA G3 (EU) probably is good, but there isn't a whole lot of data on them, so I didn't specifically mention it.

NOTE: rebates are included in price, if available. Shipping and VATS are always attempted to be included in PCPartPicker.com prices.

lewispark390 · Dec 21, 2017

I’ll give em a look

Do I Replace parts after blown PSU.

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