Need some help: Problems with new PC

[Duo8]

It's been 3 weeks since I bought my PC, and yet I still couldn't solve some problems since day one:

• My keyboard (sometimes my mouse as well) lags when I play ANY game, be it Fez or Portal 2. It only happens when I play a game. "Lag" here means delayed and/or missing inputs. This is very annoying because it screws all my games. Also, I'm using a wireless kb/m combo, batteries are still full, and I'm only ~1m from my PC.
• Occasionally my PC would shut down randomly, without any error message, as if someone just pulled the power cord. After this it would take about 30 mins before I can turn it back on. Happened 5 times in the past 3 weeks.

I'm running Windows 8 x64. Most drivers are up-to-date (GPU, Intel drivers, ...)
If anyone could suggest a solution I would greatly appreciate.

 

[FAST6191]

1) Just games or does it happen normally as well? Also when I say normally try pressing a few buttons at once -- I have seen keyboards like this lag out when they have multiple buttons pressed which is uncommon enough when typing but when holding various buttons in a game....

2) Random shutdowns... always a pleasure to diagnose. Though seen as it is taking a while before it can power back up it sounds more like a heat issue or maybe a voltage/current overload issue and waiting for the fuses to reset. I do also have to question what the machine is and what your power situation is like in your house -- if you have some monster i7 with masses of RAM, several hard drives and a couple of graphics cards all driving several screens then you might be worrying your house power supply (assuming your flag is accurate then it is typically not the best, also if you are running an air conditioner or a heater, cook on electric or something equally high powered then it might be that).
The solution to the former is make sure the heat gets out of the machine properly. The solution to the latter is try to figure out what goes with the current inside the machine and outside the machine (also do you ever get any brownouts?).

 

[Duo8]

1) Just games or does it happen normally as well? Also when I say normally try pressing a few buttons at once -- I have seen keyboards like this lag out when they have multiple buttons pressed which is uncommon enough when typing but when holding various buttons in a game....

2) Random shutdowns... always a pleasure to diagnose. Though seen as it is taking a while before it can power back up it sounds more like a heat issue or maybe a voltage/current overload issue and waiting for the fuses to reset. I do also have to question what the machine is and what your power situation is like in your house -- if you have some monster i7 with masses of RAM, several hard drives and a couple of graphics cards all driving several screens then you might be worrying your house power supply (assuming your flag is accurate then it is typically not the best, also if you are running an air conditioner or a heater, cook on electric or something equally high powered then it might be that).
The solution to the former is make sure the heat gets out of the machine properly. The solution to the latter is try to figure out what goes with the current inside the machine and outside the machine (also do you ever get any brownouts?).

1) Just used PassMark KB Test. Holding several buttons at once seems to be OK.
2)Specs:

• i5-4570
• 4GB DDR3 1600
• 1TB Seagate HDD
• ASUS HD7750
• And Corsair VS450 450W

I don't think it's overheating because this happens when I was just browsing the Internet as well.
As for brownouts, I do get them, but very rarely and not at the same time as the shutdowns. No AC, heater, ... Only the PC and the TV.

 

[trumpet-205]

Do you have another PSU to test on? Also do you have access to UPS (uninterruptible power supply), preferably a pure sine wave one? UPS is a highly recommended equipment for computer enthusiast, due to its ability to filter AC power in addition to protection against random power outage.

 

[Duo8]

Do you have another PSU to test on? Also do you have access to UPS (uninterruptible power supply), preferably a pure sine wave one? UPS is a highly recommended equipment for computer enthusiast, due to its ability to filter AC power in addition to protection against random power outage.

No and no.

 

[trumpet-205]

No and no.

Well, do think about getting a pure sine wave UPS. They maybe expensive at first, but they are well worth the price.

Anyway, go into your BIOS and look for a setting where it turns PC back on as soon as power is restored from outage. Turn that setting on. I want to see if your PSU is at fault here.

 

[Duo8]

Well, do think about getting a pure sine wave UPS. They maybe expensive at first, but they are well worth the price.

Anyway, go into your BIOS and look for a setting where it turns PC back on as soon as power is restored from outage. Turn that setting on. I want to see if your PSU is at fault here.

Just did that. Will see if it turns on or not.

EDIT: It's not the game's fault. KeyboardTest also shows no input when this "lag" occurs.

 

[gman666]

Have you overclocked any of your parts RAM, CPU, GPU, etc.... I'm only asking because I recently had the same problem when I overclocked my RAM.

 

[Duo8]

Have you overclocked any of your parts RAM, CPU, GPU, etc.... I'm only asking because I recently had the same problem when I overclocked my RAM.

None of my parts are designed for overclocking. But I might have overclocked the GPU. Is it normal for a 7750 to run at 1000MHz ?

 

[Thanatos Telos]

I had the same problem with a wireless mouse. Switched it with a wired one and it was fixed.

Also, the PSU is somewhat crappy. The VS series is Corsair's only subpar PSU line. (Am willing to provide reviews to prove it)

 

[Duo8]

I had the same problem with a wireless mouse. Switched it with a wired one and it was fixed.

Also, the PSU is somewhat crappy. The VS series is Corsair's only subpar PSU line. (Am willing to provide reviews to prove it)

But it still shouldn't give random shutdowns, right?
As for the kb/m, I still think it's a software problem. But I will try with a wired one when possible ( which could be pretty far from now).

 

[Thanatos Telos]

But it still shouldn't give random shutdowns, right?
As for the kb/m, I still think it's a software problem. But I will try with a wired one when possible ( which could be pretty far from now).

It should be the PSU. If your PC consumes more power/if the PSU is being unreliable, random shutdowns are inevitable.

 

[Duo8]

It should be the PSU. If your PC consumes more power/if the PSU is being unreliable, random shutdowns are inevitable.

For the power:

Spoiler

 

[Kirito-kun]

Try a new PSU. Or boot into Linux to make sure it's not a software problem.

 

[Thanatos Telos]

For the power:

Spoiler

I know, but crappy PSUs (Like the VS series) tend to not output what they're rated for.

 

[Duo8]

Try a new PSU. Or boot into Linux to make sure it's not a software problem.

Will a live CD work?

I know, but crappy PSUs (Like the VS series) tend to not output what they're rated for.

But even the crappiest PSUs should support basic things like web, right? When I'm using chrome CPU is about 2-3% or so. Suprisingly this never happened when I'm gaming or even Bitcoin mining (when I overclock GPU to 1000 and 30% fan).

 

[Thanatos Telos]

Will a live CD work?


But even the crappiest PSUs should support basic things like web, right? When I'm using chrome CPU is about 2-3% or so. Suprisingly this never happened when I'm gaming or even Bitcoin mining (when I overclock GPU to 1000 and 30% fan).

Not always. Remember, no matter what, the GPU is always sucking power. Like I said, the VS series is pretty shitty and it probably can't even handle the basic things.

EDIT: Also, bad PSUs have the tendency to shut off due to voltage spikes and other crappy things.

 

[Duo8]

Not always. Remember, no matter what, the GPU is always sucking power. Like I said, the VS series is pretty shitty and it probably can't even handle the basic things.

EDIT: Also, bad PSUs have the tendency to shut off due to voltage spikes and other crappy things.

Yeah, we do have a crappy powerline here (Sometimes it just drops to 203V).
The guy at the store should've recommended something else.

 

[trumpet-205]

Yeah, we do have a crappy powerline here (Sometimes it just drops to 203V).

Again, UPS would've solve the problem here. 203 V is definitely low enough to cause PSU to stop working.

Sounds like your powerline is "dirty", in this case UPS is even more highly recommended to you. UPS will temporarily use the battery to correct voltage.

 

[Duo8]

Again, UPS would've solve the problem here. 203 V is definitely low enough to cause PSU to stop working.

Sounds like your powerline is "dirty", in this case UPS is even more highly recommended to you. UPS will temporarily use the battery to correct voltage.

Yeah, I know. But I couldn't get one (too expensive) and that stopped happening recently (after they've finished with rewiring our powerlines).

Only that super annoying keyboard to go. Have you heard of the Logitech MK220?