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Old Mar 22, 2010, 05:09 PM   #1
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System Specs

PSU Requirement

I'm sure people are fed up with seeing PSU requirement requests but I thought I might add to the list...

I have a system with a 500W PSU with a Phenom II 620, one hard drive and one DVD-RW drive. Would it handle a card like the GTX 280, specifically BFG's OC2? I think it's borderline but I thought I'd check.
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Old Mar 22, 2010, 05:59 PM   #2
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Re: PSU Requirement

What brand/model is the PSU?
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Old Mar 22, 2010, 06:05 PM   #3
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Re: PSU Requirement

It would depend on the PSU's build quality and 12V rating, but any unit coming from a decent brand should be adequate.

Still, unless you're getting a really good deal for it, I'd suggest picking a different card.
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Old Mar 22, 2010, 06:14 PM Threadstarter Thread Starter   #4
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Re: PSU Requirement

It was a Hi-Power 500W. Apart from the colour, these are the matching specs: here.

£160, not bad at all.
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Old Mar 22, 2010, 08:25 PM   #5
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Re: PSU Requirement

Well, the price is reassuring. The manufacturer page states only 432W as maximum combined load for the 12V rails, which is a tad lower than I expected from an expensive, modern 500W PSU, but that should be enough, the CPU has a TDP of just 95W and the rest of the system has minimal consumption.

EDIT: I'm afraid that you have been fleeced when you purchased it, if that really is the PSU you have. At the bottom of the manufacturer page I linked to, there's a "buy now" link that states the price of just $85. Fortunately, $85 should still be the price of a decent PSU.
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Old Mar 22, 2010, 08:57 PM Threadstarter Thread Starter   #6
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Re: PSU Requirement

Quote:
Originally Posted by IvanV View Post
EDIT: I'm afraid that you have been fleeced when you purchased it, if that really is the PSU you have. At the bottom of the manufacturer page I linked to, there's a "buy now" link that states the price of just $85. Fortunately, $85 should still be the price of a decent PSU.
Thanks for the details. Don't fret, I bought mine from ebuyer for £20.86 (about $31.51)
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Old Mar 22, 2010, 09:02 PM   #7
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Re: PSU Requirement

In that case, sweet deal.
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Old Mar 23, 2010, 04:42 PM   #8
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Re: PSU Requirement

i've personally never heard of the brand..

but take a look at the rails... 18amp x2 /36 amp combined 12v rails should be the absalute minimum.
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Old Mar 24, 2010, 10:58 AM   #9
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Re: PSU Requirement

I'd worry about this PSU with a Pehnom and a GTX285 to be honest - in theory 18Ax2 should be fine, but it's a total non-brand and you've no idea whether it can actually deliver the 300W or so you'll want on your 12v rails.

You could always take a risk and go for it - you never know, it might be great - but it could be damaging to your system in the long run. Would be good to find any proper reviews if you can (as opposed to customer reviews).
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Old Mar 24, 2010, 03:26 PM   #10
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Re: PSU Requirement

I can't believe you guys have never heard of High Power. Anyone here have an HP/Compaq machine? Open her up, and take a look at the PSU. How about a external device that runs on an AC power adapter? Might just say High Power on it. Plus I thought you guys were devoted site fans? All that work Grace did in reviewing one of their power supplies, telling you about their parent company (although leaving out the tie-in with JD. Research), and it was all for not? Such a shame.

Just kidding, guys (and gal). At least now you know Hi-Power (High Power) have been around longer, a lot longer, than you first realized.
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Old Mar 24, 2010, 03:48 PM   #11
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Re: PSU Requirement

i've opened up plenty of computers.. specially the garbage from hp and compaq and all i've ever seen is knock off jobber psu's with crap ratings, some of which aren't even labeled at all really.

never once have i seen "high power"
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Old Mar 24, 2010, 06:18 PM   #12
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Re: PSU Requirement

Quote:
Originally Posted by Judas View Post
i've opened up plenty of computers.. specially the garbage from hp and compaq and all i've ever seen is knock off jobber psu's with crap ratings, some of which aren't even labeled at all really.
Then you have seen them.

Anyways, High Power is the brand name (I think Shark is another) for their PSU market, but Sirtec build PSUs for a lot of companies. One of their bigger name brand clients would be Thermaltake. CoolMax is another. I don't know which of Thermaltake's PSUs are made by Sirtec though as they have a bunch of guys making PSUs for them, but I know the bulk of them are.
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Old Mar 24, 2010, 10:25 PM Threadstarter Thread Starter   #13
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System Specs

Re: PSU Requirement

Here are the specifics of my PSU from the side of it:

Code:
output	| out current	| regulation
voltage	| Min	| max	| load	| live
-----------------------------------------------
+5v	| 0.5	| 35	| ±5%	| ±1%
+3.3v	| 0.5	| 28	| ±5%	| ±1%
+12v	| 1	| 18	| ±5%	| ±1%
-12v	| 0	| 0.5	| ±10%	| ±1%
+5VSB	| 0	| 2	| ±5%	| ±1%

AC Input 230V, 2.5A, 47~63Hz
How does that fare?
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Old Mar 24, 2010, 11:08 PM   #14
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Re: PSU Requirement

18 amps on 12v.... erg
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Old Mar 25, 2010, 12:22 AM   #15
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Re: PSU Requirement

He should have two of those, that's what the manufacturer page says and otherwise it doesn't add up.
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Old Mar 25, 2010, 07:56 AM Threadstarter Thread Starter   #16
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Re: PSU Requirement

Quote:
Originally Posted by IvanV View Post
He should have two of those, that's what the manufacturer page says and otherwise it doesn't add up.
Just the one PCI-E cable on this one. My bad, that model I said turned out was just similar, not the same. The closest I can find to a model number is ATX500-12C (not Pl@zir).
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Old Mar 25, 2010, 03:22 PM   #17
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Re: PSU Requirement

Quote:
Originally Posted by Tipstaff View Post
At least now you know Hi-Power (High Power) have been around longer, a lot longer, than you first realized.
The only Hi-Power I knew (before reading this thread) was made by Browning and shoots 9mm ammos
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Old Mar 25, 2010, 04:07 PM   #18
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Re: PSU Requirement

Quote:
Originally Posted by Takaharu View Post
Just the one PCI-E cable on this one. My bad, that model I said turned out was just similar, not the same. The closest I can find to a model number is ATX500-12C (not Pl@zir).
I just checked the numbers in the table, adding everything together the maximum theoretical power does reach 500W (499.4), so it's probably accurate. Sadly, it won't do in your case as most of the power is available through 3.3 and 5V lanes which the main consumers, CPU and GPU, do not use. Labeling that PSU as 500W almost amounts to a fraud as with just 216W available over the 12V lane, in practical use it's no better than a good 300W model.
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Old Mar 25, 2010, 04:11 PM   #19
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Re: PSU Requirement

....
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Old Mar 25, 2010, 04:44 PM   #20
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Re: PSU Requirement

Quote:
Originally Posted by IvanV View Post
I just checked the numbers in the table, adding everything together the maximum theoretical power does reach 500W (499.4), so it's probably accurate. Sadly, it won't do in your case as most of the power is available through 3.3 and 5V lanes which the main consumers, CPU and GPU, do not use. Labeling that PSU as 500W almost amounts to a fraud as with just 216W available over the 12V lane, in practical use it's no better than a good 300W model.

and this is precisely why i recommend people check their 12v amp's on their PSU they are looking to buy FIRST, and if there isn't a rating of 36amp on that rail or higher, don't bother.

I've also said and seen PSU's rated 600/800/900watts with no more then 200-300 watt rating on the 12v rail cause they are running 15-22amp total on the 12v....

this should be fraud.. and PSU manufacturers should be taking a step up and forcefully labling their psu's not by wattage, but by another standard directly related to 12v.
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Old Mar 25, 2010, 07:41 PM Threadstarter Thread Starter   #21
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Re: PSU Requirement

Well, the graphics card arrived today and it works fine. I have a 6-pin to 8-pin adapter plugged into the 8-pin socket running off the PCI-E power cable and a molex to 6-pin adapter plugged into the 6-pin socket running off of a molex that isn't being used to power anything else.
Unreal Tournament 3 maxed graphics at 1680x1050 has been used so far with no lag and no signs of any issues.
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Old Mar 25, 2010, 10:10 PM   #22
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Re: PSU Requirement

That's good to hear. Maybe Nvidia overestimated the 280's TDP when they set it to 236W considering that that's just 50W below the dual GPU 295.
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Old Mar 26, 2010, 04:24 PM   #23
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Re: PSU Requirement

Time will tell now...

Cause i've seen PSU's personally burst into flames before....
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Old Mar 26, 2010, 06:16 PM   #24
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Re: PSU Requirement

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Time will tell now...

Cause i've seen PSU's personally burst into flames before....
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Old Mar 28, 2010, 12:35 AM Threadstarter Thread Starter   #25
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Re: PSU Requirement

After today's experience I'm considering investing in a replacement PSU. I was playing on Crysis (no lag at high settings & 8x AA ) when all of a sudden I hear a crackle and smelled something burning. Within 10 seconds I was shutting down my PC, popped open the case to have a look and found nothing; I checked over everything with a fine-toothed comb and there's no visible signs of burning.
The smell didn't seem to be coming from the PSU but rather inside the case and everything still works fine (re-tested afterwards, minus the game). The card was red-hot but I'm assuming it's liable to do that, being factory OC'd.

Edit: Nvm, I took out the PSU, smelled it and found my answer lol. Shame, really. It still works so maybe I can still flog it.
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Old Mar 28, 2010, 03:33 AM   #26
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Re: PSU Requirement

First thing...throw that old PSU into the dustbin. It's worthless, and if you continue to use it, it may well destroy other components in your system.

Second, I'd recommend that you go with a known, high quality brand for your next PSU. I HIGHLY recommend, and use, CORSAIR PSU's. Depending on your budget I think that ANY of the following would work for your system. 450HX, 550VX, 520HX. The HXs are modular, the VX is not
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Old Mar 28, 2010, 07:15 PM Threadstarter Thread Starter   #27
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Re: PSU Requirement

I might try and sell the PSU on ebay. Even if it has burned, I can mark it as spares/repairs and maybe get something for it.
I'm out gaming tonight and needed a PSU to be able to use my PC and, to my dismay, pretty much everywhere had unpopular manufacturers. In the end I settled for an 850W PSU that had four 12V rails for £50. The price didn't inspire me with the greatest of confidence but it's been stress-tested and seems to be working fine. Time will tell....

I'm not too bothered about the lack of high quality as I only use the PC once a week. As long as it lasts I'm good. Everything else is of a brand I regard as reliable; ASUS motherboard, BFG graphics, Samsung (if memory serves) HDD, LG TV.
In my main PC, however, I have everything brand-named with brands that I regard as high quality; Thermaltake PSU, ASUS motherboard, Sapphire GFX, Western Digital hard drive (with a couple of others that I like), Logitech mouse + keyboard + speakers, LG monitor. No exceptions with that PC.

At least with this particular PSU, I can take it back if I kill it, complain to the store owner and get a refund. Then I'd go for a decent brand like Corsair or OCZ (similar prices). The down side is though, they're £70-odd (ex p+p), which, granted, is paying for the quality but considering my budget, it kinda hurts...
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Old Mar 28, 2010, 11:37 PM   #28
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Re: PSU Requirement

the only downside with a non-brand, unreliable low quality PSU is that if it fails, it could take everything else (mobo, videocard, cpu etc.) with it.
Btw, the 850W you bought with 4 12V rails still doesnt tell us anything. How many amp does it give on those 12V rails? that's what you should be looking for.

happened to me once, PSU failed (it was an Antec) and mobo got fried as well.
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Old Mar 29, 2010, 07:52 PM   #29
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Re: PSU Requirement

A PSU never dies alone, usually it takes with it the CPU, the motherboard and/or memory. These can be replaced. But when a PSU takes out you hard drives it can get expensive to recover your data.

Don't mess around with your PSU. Always buy a good quality (respected brand, like Corsair, Seasonic, some Antecs, OCZ etc.). They might seem more expensive, but a good and stable PSU will have your system running for years without any stability problems.

High Power doesn't necessarily make bad PSUs, it's just that they are not consistent across their range. Reading the rating of the +12V line and considering it only has 1 six pin PCIe, I would not try to use a GTX280 with that PSU. It's a low end PSU and a high end video card, they don't mix well...

It will work or it will look like it works for months, but things could get out of spec and fry the memory/MB or the CPU.
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Old Mar 30, 2010, 04:28 PM   #30
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Re: PSU Requirement

As i stated previously, Look for a Coolermaster Extreme Power PSU's, they are no only CHEAP, but they are a good reliable PSU that are built to withstand their ratings stated. Unlike most knock off brands that will spit out any random crap Amperage on the rails just to sell it.

NEVER buy a cheap PSU, QUALITY power is the life of the machine, even if things "seem" to be working fine, i've watched cheap psu's slowerly destroy machines over time resulting in having to replace the whole machine even though nothing seemed to pop. It's called using bad quality PSU's..... just don't bother, your actually creating a larger expense to yourself then you are saving money on a crappy psu.

If you get a good quality PSU, be it the budget Coolermaster Extreme Power PSU's OR paying the prime dime for a Corsair psu..... you'll most likely be able to move that psu around for years and years.
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