Watch out with the ASROCK Z97 EXTREME 4
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Well, less than a year ago, a friend asked me to set up a PC for him, which would be updated at the same time, and this is the one:- BeQUiet Silent Base 800
- BeQuiet PowerZone 750 W
- Asrock Z97 Extreme 4
- Intel Core i7 4790
- 2x8GB DDR3 GSKILL TRIDENT 2133
- 1TB HDD Seagate
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Well, I have the Extreme 6 and no RMA problems.
The only incident I had was with my old Corsair TX650 V2 PSU... it was Zero RPM but under load (more than 200W) when the fan connected at low revs, there was electrical noise in the fan.
Which with the Gigabyte (AMD rig) that lasted a year and a half I never had that problem.
With an old OCZ PowerStream 520 from 10 years ago, the PSU also made electrical noises but I understand it was because of the ATX standards.
I tried with my brother's TX750 (which always has the fan active) and everything was fine despite being over 5 years old.
The issue was resolved with a Corsair HX750i, I changed it among other things because that noise from the TX650 became intermittent-annoying for normal use with my new professional graphics card since it had power peaks above 200w when browsing websites with many banners... (damn Hawaii :ffu: ).
That is to say that I have not had sudden death problems but electrical noise with different old PSUs and that are not guaranteed for Haswell, yes.
In any case, I don't think it's the PSU because it's good but nothing guarantees you 100% that said PSU is not the cause of death by some voltage spike... check the HDDs or even the optical drive... it's very rare, not to say improbable, that you get two defective cards... it's as unlikely as winning the lottery... and less so on a card of that quality... that said, the normal thing would be that other components would also have broken :rollani:... everything very strange.
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It is because, after the motherboard change, it has only been downloaded 4 times and turned on no more than 10 times, not 24/7 but only at specific times. -
It's that, because after the motherboard change, it has only been downloaded 4 times and turned on at most 10 times, not 24/7 but at specific times.
Well, one of two things happened: either you took the computer to the store and they didn't change the motherboard because it worked for them and they lied to your colleague to promote the product, or they changed the motherboard happily without verifying if there was any kind of failure in the PSU.
With so little use on the supposed second motherboard, something smells wrong with the PSU or the store.
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I've had problems with the H77M that I installed on a friend's computer, the damn thing keeps crashing with a blue screen on Windows 7. The power supply is a Corsair CX500 V2, it works well, all the values are stable and there's no strange noise.
The display driver usually crashes. He uses the integrated one, so I don't know if it's a hardware or software failure, maybe the RAM is involved...
We've been dealing with this all summer, and it's had several formattings, software updates, BIOS updates... Every time I reinstall something, I start running stress tests, all sorts of different ones, but it never crashes. And when he uses it quietly to browse and not much else, it crashes without fail, blue screen and reboot.

Regards
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Well, I have an AsRock ASROCK B85M-ITX running 24x7 for 18 months and it has never failed.
It will be a problem with that model, maybe they changed yours for another one with the same original RMA problem.
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Ya puede ser, yo la mia por ahora robusta como una roca aunque en el PC2 me decanté por la Gigabyte B85M D3H, por precio. Pero la mar de contento con las 2.