PSU went pop - New one Power???

Gixer

Gixer

Gixer

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I am pretty sure my PSU went pop last night. I was using the PC and then there was a pop and then nothing. Everything just died. There was also the dreaded burning smell coming from the PSU area :( I thought the Antec truepower would have lasted more than 4 years or there abouts but never mind.

Now my current system is nothing special by todays standards, see my sig. However I do plan to build a new PC later this year so I thought I may as well purchase a PSU that will power that. It shall have an Intel Quad core CPU, 4gig ram, Sata Raptor HDD's and what ever the top end 9000 series Nvidia or equivilant ATI card is out. The Q6600 is looking likely at the moment as it clocks well which I shall also be doing

Will the Corsair TX750w be powerful enough to cope with that kind of setup? I would think it should but just want to be sure before I shoot off and get one.

Cheers
Paul
 
TX750W:confused::confused: total and utter overkill!! Even a VX450W would be overkill!

This is what I worked out with your system running stock....

psunv7.jpg


So even if you have overclocked your system have a bunch of fans 3 HDD’s 2 DVD drives a decent brand 350-380W psu will be more than enough.
 
erm, no. that really is pushing it. my components draw more than that at full tilt (~289watts) and that was an e6600 @ 3.2ghz + 8800gtx. a new top end card and quad core is going to be more still. that recommended 12v line is far too low when an 8800gtx uses ~13.5amps alone.
 
Sorry james, I thought he simply wanted a new psu for his old system :o :o :o :o :o

Ok

psu1yl7.jpg


This figure is calculated for a system running an overclocked Kentfiled Quad at 3.2Ghz (1.3v), 8800GTS in SLI (similar to the new 9800GX2 which is basically 2 slapped together) 4 sticks of DDR2 ram, 2 Raptor 150 in raid 0 and one barracuda data disc, a bunch of fans and 2 dvd drives.

I think that’s as power hungry as your system could get, new Yorkfield quads will be more efficient than current kentfields and I’m sure these lightly underclocked dual card nvidia will be slightly less power hungry than 2 cards in sli. And chances are you will only be using 2 sticks of 2gb ram.

James hx520 recommendation would be perfect.
 
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What is the difference between the HX620 and the TX650?

The 650 appears to be slightly cheaper for some reason?
 
In tests the hx520 performs nearly identically to the hx620, Corsair specifications even clarify peoples findings.

I guess it does sound cool to have a 600watt psu :D

Gixer said:
What is the difference between the HX620 and the TX650?

The 650 appears to be slightly cheaper for some reason?
Click to expand...

HX range made by Seasonic - modular - multi rail 12v

TX and VX range made by CWT - non modular - single rail 12v - arguably not as well made
 
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Thanks Hesky.

I'm just thinking along the lines of future proofing myself a little hence I shall go for the hx620. No doubt eventually more ram will go in my system and more storage drives etc

Thanks again for the quick replies.
 
In pretty much all head to head tests the results for the 520 were essentially identical to its bigger brother. the 620 only comes into its own when you really load up the 5v rail. With our pc's we only hammer the 12v rail not the 3 and 5volt rails so this advantage is not really to important.

It’s worth noting the HX620W comes with two more 25" cables with two SATA drive connectors for a total of 11 detachable cables vs the 9 that come with the HX520W, so you’re paying extra for the additional cables that you probably wont use.

basically the HX520 is a better deal imo
 
no, the 620 has a bigger 12v rail. where are these findings? :confused:
Corsair specifications even clarify peoples findings
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corsair even says it has an extra 120watts available on the 12v rail.

http://www.corsair.com/products/hx.aspx

HX range made by Seasonic - modular - multi rail 12v
Click to expand...

That's wrong also, its a single 12v on both the hx520 and hx620:)
 
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At rated total DC output the HX620 cannot be considered a true 80 plus psu, but the HX520 at its rated output can be.

At 520w total output both the 620 and 520 can sustain a calculated efficiency above 81%.

When the 620 is pushed to its total rated dc output, it drops below 80% efficiency and its 12 rails no longer push out 12volts. Granted it is well within spec but the 520 pretty much manages the same as it to drops below 80% efficiency.

I have to agree, the topology of these multi rail psu's are a little cloudy, the HX's could well be a single rail psu divided at the mosfet/regulator stage. There meant to be a Triple rail psu but people that have taken them to bits say otherwise.
 
Hesky82 said:
At rated total DC output the HX620 cannot be considered a true 80 plus psu, but the HX520 at its rated output can be.

At 520w total output both the 620 and 520 can sustain a calculated efficiency above 81%.
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not according to jonnyguru OR hardware secrets:

Corsair HX620W proved to be an outstanding power supply. As you can see, it could deliver its rated power with a room temperature of 50º C, which is impressive. This power supply also provides one of the best efficiencies on the market. At full load it presented an 83% efficiency and at 40% load (250 W) it presented an amazing 88% efficiency.

Voltage stability was also one of the highlights during our tests. All outputs were within 3% of the nominal voltage during all tests, which is outstanding, as ATX spec states that regulation should be within 5%. Translation: the voltages were closer to their nominal values than what is stated by the ATX standard

Electrical noise was also at a very low level (always below 40 mV on +12 V, below 8 mV on +5 V and below 7 mV on +3.3 V – ATX spec states a maximum noise level of 120 mV for +12 V and 50 mV for both +5 V and +3.3 V outputs), and we really impressed by that, because the Corsair TX750W power supply we reviewed recently had a very high noise level. The reason of the difference is probably due to the different manufacturer of the power supply – HX620W is manufactured by Seasonic, while TX750W is manufactured by CWT.

Just to put things into perspective, the noise level achieved by Corsair HX620W was lower than PC Power and Cooling Silencer 610 EPS12V, a product that has a very low noise level. This is simply fantastic.
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http://www.hardwaresecrets.com/article/371/7

look at test 5. 99.8% load on the psu, 45.5a load on the 12v rail, thats 546watts from the 12v rail alone which is obviously more than the hx520's total rated output, and it maintained an 82.9% efficiency pulling 745w from the mains. voltage regulation was also within 3%, which is below the limit for ATX specification.

again, where are you getting this information?


the hx520 and hx620 are both outstanding, but its ludicrous to say they both perform at the same level.

Conclusions

Hardware Secrets Golden AwardCorsair HX620W is a terrific power supply and won’t let you down. In our tests it could really deliver its labeled power at 50º C, showed a terrific voltage regulation, it was very quiet, produced a very low electrical noise level and its efficiency was of at least 83%, peaking 88%. And the best of all: we could extract up to 746 W from it. So you will be basically paying for a 620 W product and bringing home a 740 W power supply.
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oh and here's the best bit lol:

Load Tests (Cont’d)

Hardware Secrets Golden AwardAfter these tests we tried to pull even more power from Corsair HX620W. Below you can see the maximum amount of power we could extract from this unit keeping it working with its voltages and electrical noise level within the proper working range. During this test room temperature was of 48º C and the power supply was working at 58º C.

Input Maximum
+12V1 - 28 A (336 W)
+12V2 - 27 A (324 W)
+5V - 8A (40 W)
+3.3V - 8A (26.4 W)
+5VSB - 3A (15 W)
-12V - 0.8 A (9.6 W)

Total 746 W
% Max Load
120%

AC Power
901 W

Efficiency
82.8%

Under this extreme condition noise level continued very low, at 43 mV on +12V1 and 38.2 mV on +12V2, as you can see below. This is really good.
Click to expand...
so, at 20% ABOVE its maximum rating, it was still working at 82.8% efficiency and within atx specs. 746w it was supplying.with a room tempreature of 48c. there is absolutely no doubt that this power supply is outstanding in every way and thats the reason its been the number one recommended psu for over a year and a half now.
 
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silentpcreview, they actually pit both psu's together, results are pretty interesting.

I’ve read both jonnyguru and hardware secrets, and it’s quite obvious that the HX620 is a kick ass psu but when you compare like for like you see how similar they really are.

IIRC at both there max rated outputs the 520 ran significantly cooler than the 620 with low exhaust temps, which in turn ran the fan slower making the 520 run quieter at its max load.
 
Hesky82 said:
silentpcreview, they actually pit both psu's together, results are pretty interesting.

I’ve read both jonnyguru and hardware secrets, and it’s quite obvious that the HX620 is a kick ass psu but when you compare like for like you see how similar they really are.
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i cant agree:confused: silentpc never tested the hx520 outside of its specifications so why are you assuming it is capable of the same outputs the 620w is? of course they are going to perform similarly with loads up to 500w - they are based on the same design. outside of that, you are just making assumptions?

IRC at both there max rated outputs the 520 ran significantly cooler than the 620 with low exhaust temps, which in turn ran the fan slower making the 520 run quieter at its max load.
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no, according to silentpc they were both exactly the same with a 520w load. ie: 43dba with a 11c exhaust temp rise, which was also the same when they tested the 620w with a 625w load. but dont forget, thats an intake temperature of 40c, it wont be 40c in the average room. it wont be anywhere near that.
 
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james.miller said:
no, according to silentpc they were both exactly the same with a 520w load. ie: 43dba with a 11c exhaust temp rise, which was also the same when they tested the 620w with a 625w load.
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Sorry I was commenting on jonnyguru's finding, but if that’s the case and silentpcs test ran an intake temp of 40c and both at max load they only saw an 11c rise it would be safe to say both would be totally silent when running at temps slightly above ambient with normal loads.
 
I wish I could fully understand what you were all on about here!!

My silly is this a powerful enough PSU has started a bit of a debate which I didn't mean to happen. Still I think I get the general idea but I still went for the HX620. I doubt I will never need the extra connectors though i have three HDD's in my current setup of which two will be transferred so that would be four drives as you were right in assuming I will be having two Raptors in RAID 0 :)

Anyway it is an interesting read so thanks for all of the extra information. As long as my PC turns on and works though I'll be happy :D
 
Gixer said:
I wish I could fully understand what you were all on about here!!

My silly is this a powerful enough PSU has started a bit of a debate which I didn't mean to happen. Still I think I get the general idea but I still went for the HX620. I doubt I will never need the extra connectors though i have three HDD's in my current setup of which two will be transferred so that would be four drives as you were right in assuming I will be having two Raptors in RAID 0 :)

Anyway it is an interesting read so thanks for all of the extra information. As long as my PC turns on and works though I'll be happy :D
Click to expand...

i have both of them and believe me, you wont be disappointed with either:)
 
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