PC Hardware forum


Two Faulty PSU's; GFX Issues

by DarkIceGB / June 20, 2012 2:21 AM PDT


I bought all the parts to build a new PC, including the Antec HCP 750 Watt, the Palit 2GB GTX 670 GFX and the ASUS Maximus V Gene Motherboard. Whenever I played games, ASUS anti-surge would trigger. After checking that everything was in place properly and reading through all the manuals again, a technician looked at my PC and found the PSU to be faulty.

The retailer replaced it, but then after fitting it, my PC would show no video output. I used an old Nvidia 9600 GT, and it worked. The technician came back and said that the PSU hnd damaged the GTX 670; the retailer then refunded me.

I bought the Palit 2GB GTX 670 JETSTREAM this time, and when I fitted it in the top slot (16x), there was no video output. It did, however work in the bottom one (8x), even though in the manual it says it needs 16x.
When I launched a game and loaded a level, it cut off saying that ASUS Anti-Surge was triggered.
When the technician disabled the anti-surge, the PSU cut out! I tried an old Corsair VX450W and it worked without cutting off.

The technician thinks it's another faulty PSU, but do you have any idea what the issue is?

I've ordered the Corsair AX750 Watt to see if it will work and asked for a refund for the Antec HCP 750 Watt.

Each time he came, the technician tested the voltage on the PSU and graphics card, which appeared normal. Temperatures and fans speeds were also normal, and appeared normal in AI Suite II and the bios too. Updating the bios had no effect; all Windows and hardware drivers are up to date.

Do you think this issue might happen again and is there any risk to my parts and do you have any idea what the issue is? Also, why won't the graphics card work in the top slot?

Full PC Specs:

• Intel Core i5-3570K 3.4GHz CPU
• Asus Maximus V Gene Mobo
• Corsair Vengence 8GB 1,600MHz CL9 DDR3 RAM
• Palit GeForce GTX 670 2GB Jetstream
• Antec High Current Pro HCP-750 PSU
• Arctic Freezer i30 Cooler
• Corsair Carbide 500R Case
• Seagate 2TB 7200 RPM 64MB Cache HHD
• Crucial 120GB M4 SSD


Discussion is locked
You are posting a reply to: Two Faulty PSU's; GFX Issues
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Two Faulty PSU's; GFX Issues
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.
Collapse -
by R. Proffitt Forum moderator / June 20, 2012 2:40 AM PDT

If they can't deliver a working system, get your money back and go where they can deliver.

You should not be troubleshooting for them.

Collapse -
2ndary problems
by Willy / June 20, 2012 3:00 AM PDT

If a part truly fails, it may take out other devices/items/buss as part of the overall problem. Thus, when you replace the primary cause, it doesn't address the secondary ones. It becomes a shotgun approach to fix things. Though, in the final fix usually far more is replaced to resolve the problem(s). Also, these 2ndary problems can return or fault the primary problem to return. It becomes nightmare until a whole rebuild is done using *ALL NEW* parts again. Alas, the actual power demands maybe simply outstripping the capabilities until it settles down. As it seems your safety features kick-in suggest either a power leg is being over-drawn or is never really meant. I find that 16x video slot troubling and only the mtrbd., being replaced should help narrow it down. if possible reduce the system to its basics, lowest level and then retry to boot, etc.. Otherwise, you may have a bad combo or still yet bad parts or return of bad action if all the bad parts aren't removed. I would sort out the power connections to best spread out the load as well.

tada -----Willy Happy

Collapse -
by DarkIceGB / June 20, 2012 10:24 AM PDT
In reply to: 2ndary problems

Thanks for the replies, I'm going to insist that they replace all the parts. However, I the problem is I bought half from one site and the other half from another.

Willy, what do you mean by "The actual power demands maybe simply outstripping the capabilities until it settles down" and "mtrbd"?

All the parts were recommended by bit-tech who stated that they're all compatible.

Both graphics cards work in the 8x slot, but only the older one works in the 16x. Is this because the old 450 Watt PSU can't give enough power in 16x to the new graphics card, or is the Motherboard damaged? It looks like it is, and I'm going to have to start all over again!

Collapse -
I wonder about that PSU.
by R. Proffitt Forum moderator / June 20, 2012 10:29 AM PDT
In reply to: Damage?
Collapse -
by DarkIceGB / June 20, 2012 10:33 AM PDT

I'm not sure what you mean about the rails.

All the parts were recommended by bit-tech who stated that they're all compatible.

Collapse -
It's a computer design decision.
by R. Proffitt Forum moderator / June 20, 2012 10:38 AM PDT
In reply to: Rails?

I strongly suggest the designer answer any and all questions. You put your trust in them so they deserve the questions.

Here I have my reasons for finding the total Amperes and getting a single rail PSU. But this is not my design so let's hear from bit-tech.

Collapse -
Already posted
by DarkIceGB / June 20, 2012 10:42 AM PDT

I've already posted a help thread on the forums, so hopefully they'll read it.

Collapse -
by DarkIceGB / June 20, 2012 10:42 AM PDT
In reply to: Damage?

Sorry I forgot that it also didn't work with the 750 Watt PSU in the 16x slot, so it's probably not the 450 Watt PSU. It's strange how it works in the 8x, when it says it should be in the 16x slot.

Collapse -
Actually that is a clue.
by R. Proffitt Forum moderator / June 20, 2012 11:02 AM PDT
In reply to: Forgot!

I can't be sure of much given the story so far but if I saw this and all was good hardware the x16 slot can tap the PSU just a little harder and cause a PSU to fault or drop out. But this is just speculation and nothing more since I can't see the machine.

The builder of the machine if they are seasoned may mention such to you.

Collapse -
8x cut too
by DarkIceGB / June 20, 2012 11:10 AM PDT

But the GTX 670 was cutting out in the 8x slot too. If what you speculated is the case, is the the fault of the GFX card, PSU or Motherboard, and would there be any way of fixing it?

If this is true, then that would probably mean that neither of the PSU's were faulty.

Collapse -
by DarkIceGB / June 20, 2012 11:12 AM PDT
In reply to: 8x cut too

Ignore the last line above that starts with "If this is true", I meant to remove it but can't edit anything!

Collapse -
Looking at the user reviews.
by R. Proffitt Forum moderator / June 20, 2012 11:13 AM PDT
In reply to: 8x cut too
Collapse -
by DarkIceGB / June 20, 2012 12:11 PM PDT

Those reviews are pretty bad.

What should I do about it all?

Collapse -
I see the maker is responding.
by R. Proffitt Forum moderator / June 20, 2012 2:57 PM PDT
In reply to: Terrible

At the very least call it in and get it exchanged.

Collapse -
by DarkIceGB / June 20, 2012 8:11 PM PDT

What do you mean the maker is responding?

If I bought half of the parts from Scan and the other half from Dabs, but the Antec PSU's from Scan damaged the parts, how am I going to get a refund for all of the parts?

Also, if I plan to overclock and SLI later, will I need more than a 750 Watt PSU?

Collapse -
Re: refund
by Kees_B Forum moderator / June 20, 2012 8:22 PM PDT
In reply to: Maker?

I'm afraid their terms of sale exclude liability for those other parts. Did you check? And what do they say if you ask?


Collapse -
by DarkIceGB / June 20, 2012 8:41 PM PDT
In reply to: Re: refund

Who's terms of sale? I've asked both Scan and Dabs.

It should be Scan - I'm not going to stop emailing them until they do and if they refuse then I'll take further action. It is their faulty PSU that damaged it.

Collapse -
Re: terms of sale
by Kees_B Forum moderator / June 20, 2012 8:45 PM PDT
In reply to: Who?

Best of luck with your 'further action'. It might involve a lawyer and it could be difficult to prove that it was their faulty CPU causing the damage.


Collapse -
by DarkIceGB / June 20, 2012 8:26 PM PDT
In reply to: Maker?

Had a reply from ASUS Support: "It seems to be a VGA card in compbale issue.
Please check the bios is the latest."

Total rubbish.

Collapse -
by DarkIceGB / June 20, 2012 8:51 PM PDT
In reply to: Rubbish

Can't reply to your message Kees_B so I'm replying to this one.

I have an independent report from a technician. I thought that it definitely was their responsibly, but Dabs stated that they might just refer me to the manufacture. How is it any more their fault?

Does this mean that I'm left with broken, brand new parts that are still under warranty, due to no fault of my own?

Collapse -
Warranty issues
by Willy / June 20, 2012 11:18 PM PDT
In reply to: Reply

I mentioned "return the parts" as time involved got to be too much. Once you pass a certain mark with the selling vendor they refer to the maker. It's all explained in the fine print once you have nothing better to read. I don't fool around when i have bad parts or things just don't go right. I immediately start return process and also use the CCard to help resolve issues if they start to protect themselves. I assume this has already gone on for than that 15 days, a magic warranty period for vendors.

tada -----Willy Happy

Collapse -
Multiple problems
by Willy / June 20, 2012 11:13 PM PDT
In reply to: Damage?

As i see, nothing never got to work as supplied. It's not uncommon for them to ship parts that were returned and thus restocked maybe after simple testing. Such practices are done to allow actual use of returned parts rather than jump immediately into the new stock or its used when parts aren't readily available. You never got this to work as intended. Considering the time passed, it maybe better to return the whole items and start fresh elsewhere. Which is why i mentioned, nothing may resolve the problem(s) if you remain with any old part as only totally new(brand new). The conflicting results just confuse the matters which as a tech, I would start from the beginning all over again. You're proving that this setup doesn't work so for, thus bit-tech recommendation is NOT working well.

PSUs(750W) also have the "split rail" design intended to spread the load around. if any device exceeds one rail, it overloads it, even though the total of power is capable, its that power leg that got zapped. Again, I mentioned, spread the load, by plugging from various connections and/or. The video card uses 195W at peak and recommends you use at least 500W. I'm sure you're old 450W is single rail design and is pushing its limits but all you did was power it up. If you it going, I'm sure later it would falter. The 750W has 4-rails of 12v/40W(from specs) and based on that alone may not be a good match. I suggest you get all the specs of all devices/components and then add it all up and compare to see what you really need. At this stage of the game and what you intend to do, you're in the more demanding mode of power levels just to get things going and sustained use isn't going to help due to heat stress. Goto:


and use their power calculator, etc. and get and match there. You can query them as well. You'll find what top $ buys too. Read the advise they provide, its good reading. IMHO, I think you're building a very demanding top-end PC that so far hasn't all the matched parts required.

tada -----Willy Happy

Collapse -
Previously sent back ASAP
by DarkIceGB / June 21, 2012 1:00 AM PDT
In reply to: Multiple problems

I sent back the first PSU as soon as the technician said it was faulty. Now I've emailed Scan and they replied stating that they would look into replacing parts that were damaged by the PSU that I bought from them, but not from Dabs.

They suggested that I contact the manufacturer, Antec, about the other parts. I really hope Antec will replace the parts that their PSU ruined, because it was their fault and it's caused a huge inconvenience.

Dabs said that they wouldn't be able to replace any parts, but I've asked if it might be possible to RMA them if Antec refuse to help.

Unfortunately, the Motherboard was from Dabs.

The technician did try spreading out the load connected to the graphics card, but it didn't make a difference. This truly was a terrible recommendation by bit-tech. Didn't they realise that it would overload with the GTX 670? Obviously ASUS Anti-Surge wasn't fast enough to protect the components.

I was thinking of building the same PC but with a GIGABYTE Motherboard and the Corsair 750W PSU (would this be enough for future SLI and overlclocking?). But I'm not really sure if they're even good parts; I don't really trust bit-tech very much right now.

Collapse -
Repair build
by Willy / June 21, 2012 1:09 PM PDT

Things always change yet they don't. basically, while some things have gotten complex they do try to simply the guesswork and here it always doesn't go right. I'll use the example of "jumpers".

If you read the manual you need to jumper this way and that and then apply power. Now, its gotten to be all s/w based or interactive. that might be good for the basic system, but too often users then try to maximize the setting, yada, yada and get into trouble. As for a PSU, it used to be a simple wattage applied. Now, not only wattage and AMPS, but all the dang connections, rails, safety and cooling. So, you see it gets more complex yet we're still dealing with the same bedrock components.

I'm sorry for your problems, but I'll have to see it in person to get anything more out of it. I leave you for now. Again, I suggest you review all the specs and how they compare to each other for a good PC build. Take your time on your repair build and assure all is going as it suppose to be. -----Willy Happy

Collapse -
Damaged other parts?
by DarkIceGB / July 18, 2012 11:20 PM PDT

As the Motherboard appears to have suffered partial damage but otherwise works, how can I be sure that all the other parts aren't damaged or weekend? How can I get them replaced if this is the case?

Collapse -
by DarkIceGB / July 19, 2012 12:58 AM PDT
In reply to: Damaged other parts?

EDIT: As the Motherboard appears to have suffered partial damage from the PSU (graphics card doesn't work in top slot; hissing sound with graphics are displayed) but otherwise works, how can I be sure that all the other parts aren't damaged or weekend? How can I get them replaced if this is the case?

Scan don't even believe the PSU surged anything, when the tech said it did.

Collapse -
by R. Proffitt Forum moderator / July 19, 2012 1:12 AM PDT
In reply to: Edit

Ask for a refund. Go elsewhere.

Collapse -
by DarkIceGB / July 19, 2012 1:32 AM PDT
In reply to: Advice.

A refund for what parts and from the manufacturer? Because Scan refuse to help.

Collapse -
The reciepts matter here.
by R. Proffitt Forum moderator / July 19, 2012 1:55 AM PDT
In reply to: Who?

They might replace it but look at the receipt for the machine and that is the company you want a refund from.

I see this as the usual failed self built machine. When you go done that road you are the builder and you will be very upset to learn there is no warranty on the finished product. Some want to debate that but let's let the results speak for themselves.

My advice is to return what you can and consider a ready to use machine.

Collapse -
by DarkIceGB / July 19, 2012 4:28 AM PDT

You're suggesting the build failed because of me?

There is no "receipt for the machine".

I can't return the parts if they appear to be working, that's why I was asking if the parts could be partly damaged or weekend.

How can I get them replaced, like the hard drive? The retailer won't help and I doubt the manufacturer will either.

Plus prebuild is a few hundred more expensive.

Popular Forums
Computer Newbies 10,686 discussions
Computer Help 54,365 discussions
Laptops 21,181 discussions
Networking & Wireless 16,313 discussions
Phones 17,137 discussions
Security 31,287 discussions
TVs & Home Theaters 22,101 discussions
Windows 7 8,164 discussions
Windows 10 2,657 discussions


Help, my PC with Windows 10 won't shut down properly

Since upgrading to Windows 10 my computer won't shut down properly. I use the menu button shutdown and the screen goes blank, but the system does not fully shut down. The only way to get it to shut down is to hold the physical power button down till it shuts down. Any suggestions?