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PC crash after CPU upgrade

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PC crash after CPU upgrade

Postby Phunky » Tue Dec 18, 2012 7:12 pm

After swapping a Athlon X2 4600(dualcore) for a Phenom 1 9750(quadcore, 95w) in my PC(Asrock Alivesata2-glan) it has suddenly started to crash, especially when streaming video content, but also on a few other occasions. Sometimes it just hangs, and sometimes the screen goes black(doesn't reboot).

Even though the CPU isn't listed on the official support page, I've managed to get a beta BIOS(2.61a) from Asrock. According to them my CPU is tested with the beta and is supposed to work.

Both device and task manager shows 4 cores. SisoftSandra reports a temperature of 30 celsius.

I've updated the videocard drivers as well as flash.

When I booted up the machine for the first time after the swap XP(SP3) was installing some new drivers(PC-host?).

Even before swapping CPUs a had strange problem. Everytime before starting up the PC I have to disconnect and reconnect the keyboard for it to be recognised. Re-installing the (keyboard-)drivers hasn't solved this problem.

Might a clean XP installation solve the problem?

Cheers
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Re: PC crash after CPU upgrade

Postby AlterEcho » Wed Dec 19, 2012 12:22 am

Have you swapped the old CPU back in, to see if anything has changed?
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Re: PC crash after CPU upgrade

Postby Phunky » Wed Dec 19, 2012 5:37 am

No, I haven't tried the old CPU.
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Re: PC crash after CPU upgrade

Postby Yardstick » Wed Dec 19, 2012 10:16 am

Hi,

It could be that your Power Supply is not able to produce enough power after the CPU change...
Not saying that this is it, just a thought...
If you have a light power supply this could cause the problems you decribe...

Regards,

Stephan
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Re: PC crash after CPU upgrade

Postby Phunky » Wed Dec 19, 2012 8:04 pm

I will check the PSU if everything else does not work. The new CPU is rated at 95w, the old one was 65w.
I am writing this using Knoppix, and I have only had one crash. This was while watching mp4 content. Internet works OK, which it does not on XP, but I will have to download another distro because knoppix does not have flash aboard. Going to try the Kiwi distro.
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Re: PC crash after CPU upgrade

Postby Scramble » Wed Dec 19, 2012 8:12 pm

Might be worth downloading some stress test software and stressing your system to see if that will reliably crash it.
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Re: PC crash after CPU upgrade

Postby kolektor1 » Wed Dec 19, 2012 9:12 pm

waow using a beta bios inside a daw is kinda risky imo.

maybe your budget is low but considering getting a new main board for your new cpu would be much better.

AMD always adverts about compatibility between their different cpu n sockets but in the real world this dont translate as wished.
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Re: PC crash after CPU upgrade

Postby Phunky » Thu Dec 20, 2012 3:51 pm

Kolektor1, my DAW is the PC where the 9750 used to be. My DAW is running smoothly with it's new Phenom 2 x6 1045t. The idea was to let the old CPU move to my other PC(asrock). Normally I would have build a new and faster DAW and downgraded the old to internet/back-up PC, but my EMU1820M soundcard is PCI, making such an upgrade close to impossible.

The Asrock setup now completely refuses to boot. I only get past the screen telling me about the drives and such, before it stalls.

MOBO, CPU(95w), 2xHD, DVD-player, Floppydrive, and graphics-card(G-force 6600 GT), how many watts would that approximately ad up to? The PSU says 350W.
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Re: PC crash after CPU upgrade

Postby Phunky » Sun Dec 23, 2012 7:59 pm

PC is up and running again with the old PSU(and the beta bios).

Found an online PSU calculator, http://www.extreme.outervision.com/psucalculatorlite.jsp. My PSU is several years old(350w), and my planned(Phenom1 X4 9750) setup needs at least 300w(recommended), which the PSU probably can't deliver due to decrease in wattage because of wear and tear. According to the aforemetioned website voltage is also quite important.

My sister has quite a collection of computer parts laying around, so I might be able to find a suitable PSU at her place. Otherwise I'll buy a 430w corsair(40 euro) as replacement.

For years I have been building new machines(mobo+CPU) whenever I could double the speed for a modest outlay and never thought about upgrading the PSU. Lesson learned I hope:-)
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