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Thread: When a CPU dies - symptoms ?




  1. #1
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    Default When a CPU dies - symptoms ?

    I had my video card go out on me. I sent it back and they fixed it (BFG)

    I just got it back and got it running. This is when I discovered my CPU now has only one core....not 3. (AMD Phenom 8400 Triple core)

    I have checked everything I know to check. It still works but really slow.

    Task manager, CPUZ, SIW, Everest all show only one core when they all showed 3 coers before my video card died.

    I think the video card and CPU went at the same time....it is working but VERY slowly. L2 cache is showing 1/3 of what it should be too.

    Has anyone else seen this when a CPU dies?
    Last edited by nate42nd; 08-01-2009 at 06:05 AM.
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  2. #2
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    Default Re: When a CPU dies - symptoms ?

    Have you tried Loading Optimum defaults in BIOS?
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  3. #3
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    Default Re: When a CPU dies - symptoms ?

    Yes I have. This is an "OEM" BIOS from HP and does not have many options but I am familiar with the BIOS. The funny thing is the BIOS shows the correct L2 and L3 cache.

    I am also dual booting Windows 7 and Vista Ultimate on the machine. It's the same in both OSs.

    I have tried the "detect HAL" option in MSconfig boot options in Vista. (WIndows 7) does not have the option. Another person suggested I do this.

    I have now tried everything I can think to do.

    It's a Phenom 8400 triple core that was discontinued. I think I am finding out why they quit making them.

    Thanks for the reply, if you think of anything else, let me know.
    P55-UD4P - i7860 - Patriot Inferno 120GB SSD - 1600Mhz Mushkin 7-8-7-20 - 3 WD 640GB Black
    880GMA-UD2P - X6 1055T CPU - Patriot Inferno 120GB SSD - GSkill 1333 8-8-8-21 - 2 500GB WD Black
    2 or 3 other systems I like to play with and a laptop

  4. #4
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    Default Re: When a CPU dies - symptoms ?

    It sounds like a new computer and since its an hp, I would return it and get a new one.

  5. #5
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    Default Re: When a CPU dies - symptoms ?

    No, it's almost 3 years old. I got it refurbished and is out of warranty long ago.

    The Phenom 8400 triple core has some problems. That's why the discontinued it shortly after release and replaced it with the 8450. I am still using the system (it's a backup) and it seems to work better than I thought it would. I can do almost anything I could before.

    It has me wondering if the CPU is telling Windows and all other apps I've tried that the cores are dead when if fact they are not. I don't know. I was hoping someone had heard of the same situation. Thanks for the reply.
    P55-UD4P - i7860 - Patriot Inferno 120GB SSD - 1600Mhz Mushkin 7-8-7-20 - 3 WD 640GB Black
    880GMA-UD2P - X6 1055T CPU - Patriot Inferno 120GB SSD - GSkill 1333 8-8-8-21 - 2 500GB WD Black
    2 or 3 other systems I like to play with and a laptop

  6. #6
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    Default Re: When a CPU dies - symptoms ?

    I guess its on its last legs then.

  7. #7
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    Default Re: When a CPU dies - symptoms ?

    Yea, I will just use it until it dies. I have a Quad core system and will have an i5 870 system when they come out (most likely) so I will have the Quad core system as a backup. haha

    Pretty weird problem though to have 2 of the 3 cores disappear from all view and not be able to tell if they are working or not. It's slower so like you said..."it on it's last leg"

    I am running all kinds of stuff on it right now hooked up through the network to my quad system. It has not died yet. I don't know what to think.
    P55-UD4P - i7860 - Patriot Inferno 120GB SSD - 1600Mhz Mushkin 7-8-7-20 - 3 WD 640GB Black
    880GMA-UD2P - X6 1055T CPU - Patriot Inferno 120GB SSD - GSkill 1333 8-8-8-21 - 2 500GB WD Black
    2 or 3 other systems I like to play with and a laptop

  8. #8
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    Default Re: When a CPU dies - symptoms ?

    its been a while since i saw an intel chip die

  9. #9
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    Default Re: When a CPU dies - symptoms ?

    I want to get an old P4 and a cheapo S775 Board and see what happens with Max volts on vcore and vdimm. lol
    Lian Li PC-7F Chassis Black
    Gigabyte GA-X48-DS5 MB (Rev. 1.1 BIOS v.F8c)
    Gigabyte ODIN GT 800Watt PSU
    Intel Core2Quad Q9550 E0 @ 3.4Ghz @ 1.25vcore
    Noctua NH-U12P + AS5
    G.Skill 2X2GB F2-8500CL5D-4GBPK
    2 X ATI Radeon HD4850 512MB (Crossfired)
    Dell Ultrasharp 2209WA IPS
    2 X 1TB Seagate 7200.11 in RAID 1
    Pioneer DVR216 SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------
    Gigabyte Poseidon Chassis
    Gigabyte GA-EP45-DS3 (Rev. 1.0 BIOS v.F9)
    ASUS Artic Square CPU Cooling with AS5
    Thermaltake TR2 RX 550Watt PSU
    Intel Core2Duo E8500 E0 @ 3.8Ghz @ 1.25vcore
    Corsair 2 X 2Gb XMS2 PC6400C5 DDR2
    NVIDIA GeForce 8800GT 512MB
    1 X Seagate 1TB 7200.12 + Seagate 750GB 7211.11
    Sony SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------

  10. #10
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    Default Re: When a CPU dies - symptoms ?

    Quote Originally Posted by dumay View Post
    its been a while since i saw an intel chip die
    That's what I'm wondering. Is it dead. It still works pretty good. I can even run prime95 for hours. It just is a little slower and only shows it has one core not three. I don't know what to make of it. I will just keep using it until it does die. I'm glad it's not my main system.

    EDIT: After a month it is still going. I edit pictures and video on this machine and it does not seem to be that much slower. I wonder if it's something in the BIOS or what.....If anybody knows why this CPU would be showing only one core, let me know. Remember I have tested it on Vista, Windows 7, and Ubuntu. They all show only one core after months of showing 3. Weird.
    Last edited by nate42nd; 09-29-2009 at 07:17 PM.
    P55-UD4P - i7860 - Patriot Inferno 120GB SSD - 1600Mhz Mushkin 7-8-7-20 - 3 WD 640GB Black
    880GMA-UD2P - X6 1055T CPU - Patriot Inferno 120GB SSD - GSkill 1333 8-8-8-21 - 2 500GB WD Black
    2 or 3 other systems I like to play with and a laptop

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