Re: [H] Odd CPU issue
At 12:01 AM 22/05/2010, DSinc wrote: You always do share good problems! Do you perhaps have ash fallout from the Iceland volcano ATM? If so, all bets are off... :) Not yet. :) Wrong side of the Atlantic. I do hear that it reached NFLD at one point. T
Re: [H] Odd CPU issue
On Friday 21 May 2010 22:59:23 Scoobydo wrote: If you've had experience of several bad CPU's then you must be a system builder with hundreds of builds under your belt. I'm just a hobbyist and have only built 20 or so boxes over the years and I've never even heard of anyone having a CPU go bad until you said it. Bad mobo's, PSU's, hardrives, floppies, optical drives, video cards, RAM, fans etc. I've seen it all with the single exception of the processor. CPU's are by far the most reliable component of any PC, period. Intel and AMD deserve great respect for that major accomplishment. Of course static electricity can kill one pretty easily but that's not going bad, that's user error. Somewhere in this area in a land fill is my original IBM PS/2 486 SX-25 and I'd bet anything that if it were buried functional with no bent or broken pins it would still run if socketed in a working box. I really believe that.. With 40+ years as a hardware engineer you see all kinds of strange things. The first bad cpu I ever saw was dropped on the floor and the chappie that dropped it straightened the pins and put in into service (circa 8088/86 Linotype character and font generator 8 floppy drives, two of them). The characters produced had weird distortions. It took days to find that one and two minutes to fix it. The original technician admitted what he had done when it was proved to be the cpu. The other suggestion I would make is to check the BIOS beep codes to see what the beep code means. I note that no one has commented on using the beep codes as a pointer to a possible MB/CPU fault. -- Best Regards: Derrick. Running Open SuSE 11.1 KDE 3.5.10 Desktop. Pontefract Linux Users Group. plug @ play-net.co.uk
Re: [H] Odd CPU issue
On Saturday 22 May 2010 03:24:27 DSinc wrote: Scoobydo, If I dig in by bone pile I could offer you a brand new old stock and only use once, spare for your current P2-333. I bought mine because it had some special S-Spec #. If interested, I can share critical numbers. I've just binned around 400+ SIL CPU for scrap metal. -- Best Regards: Derrick. Running Open SuSE 11.1 KDE 3.5.10 Desktop. Pontefract Linux Users Group. plug @ play-net.co.uk
[H] Odd CPU issue
I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%20ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%20ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. Any ideas? T
Re: [H] Odd CPU issue
On Fri, 21 May 2010, Thane Sherrington wrote: I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%20ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%20ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. BIOS? Do the CPU's expect different voltages that the bad board isn't supplying correctly? Switch power supply on the one it doesn't boot with and test? Christopher Fisk -- Leela: Bender, maybe you can interface with the Femputer and reprogram it to let them go. Bender: Maybe you can interface with my ass... by biting it.
Re: [H] Odd CPU issue
At 09:22 AM 21/05/2010, Christopher Fisk wrote: BIOS? Trying that right now. Do the CPU's expect different voltages that the bad board isn't supplying correctly? Switch power supply on the one it doesn't boot with and test? Good idea. I'll try that. T
Re: [H] Odd CPU issue
I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. On Fri, 21 May 2010 06:24:39 -0500, Thane Sherrington th...@computerconnectionltd.com wrote: I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%20ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%20ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. Any ideas? T -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Re: [H] Odd CPU issue
On Friday 21 May 2010 15:02:35 Scoobydo wrote: I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. On Fri, 21 May 2010 06:24:39 -0500, Thane Sherrington th...@computerconnectionltd.com wrote: I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%2 0ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%2 0ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. Any ideas? T I've had experience of several bad CPU. Having said that, and in view of the tests that the OP has done, BIOS settings are the first place to check. The other is the CPU psu itself. I've seen bad capacitors cause the psu to shut down on heavy load but supply power just fine to a lighter load, ie a CPU that draws less power. The other suggestion I would make is to check the BIOS beep codes to see what the beep code means. -- Best Regards: Derrick. Running Open SuSE 11.1 KDE 3.5.10 Desktop. Pontefract Linux Users Group. plug @ play-net.co.uk
Re: [H] Odd CPU issue
If you've had experience of several bad CPU's then you must be a system builder with hundreds of builds under your belt. I'm just a hobbyist and have only built 20 or so boxes over the years and I've never even heard of anyone having a CPU go bad until you said it. Bad mobo's, PSU's, hardrives, floppies, optical drives, video cards, RAM, fans etc. I've seen it all with the single exception of the processor. CPU's are by far the most reliable component of any PC, period. Intel and AMD deserve great respect for that major accomplishment. Of course static electricity can kill one pretty easily but that's not going bad, that's user error. Somewhere in this area in a land fill is my original IBM PS/2 486 SX-25 and I'd bet anything that if it were buried functional with no bent or broken pins it would still run if socketed in a working box. I really believe that.. On Fri, 21 May 2010 14:09:01 -0500, Gaffer 14...@castle-computer.co.uk wrote: On Friday 21 May 2010 15:02:35 Scoobydo wrote: I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. On Fri, 21 May 2010 06:24:39 -0500, Thane Sherrington th...@computerconnectionltd.com wrote: I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%2 0ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%2 0ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. Any ideas? T I've had experience of several bad CPU. Having said that, and in view of the tests that the OP has done, BIOS settings are the first place to check. The other is the CPU psu itself. I've seen bad capacitors cause the psu to shut down on heavy load but supply power just fine to a lighter load, ie a CPU that draws less power. The other suggestion I would make is to check the BIOS beep codes to see what the beep code means. -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Re: [H] Odd CPU issue
I've seen at least 5-6 CPU's go bad. Sometimes it's just the cache memory and sometimes the processor. Old athlons would fry pretty quick if the CPU fan goes bad often just within a few minutes. I've probably built or repaired 500+ systems just as a hobbyist. I used to average 3-4 full systems a week back in the old days. Now that I don't have a lot of time, I've probably done new boxes 3 this month. lopaka From: Scoobydo swza...@yahoo.com To: hardware@hardwaregroup.com Sent: Fri, May 21, 2010 2:59:23 PM Subject: Re: [H] Odd CPU issue If you've had experience of several bad CPU's then you must be a system builder with hundreds of builds under your belt. I'm just a hobbyist and have only built 20 or so boxes over the years and I've never even heard of anyone having a CPU go bad until you said it. Bad mobo's, PSU's, hardrives, floppies, optical drives, video cards, RAM, fans etc. I've seen it all with the single exception of the processor. CPU's are by far the most reliable component of any PC, period. Intel and AMD deserve great respect for that major accomplishment. Of course static electricity can kill one pretty easily but that's not going bad, that's user error. Somewhere in this area in a land fill is my original IBM PS/2 486 SX-25 and I'd bet anything that if it were buried functional with no bent or broken pins it would still run if socketed in a working box. I really believe that.. On Fri, 21 May 2010 14:09:01 -0500, Gaffer 14...@castle-computer.co.uk wrote: On Friday 21 May 2010 15:02:35 Scoobydo wrote: I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. On Fri, 21 May 2010 06:24:39 -0500, Thane Sherrington th...@computerconnectionltd.com wrote: I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%2 0ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%2 0ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. Any ideas? T I've had experience of several bad CPU. Having said that, and in view of the tests that the OP has done, BIOS settings are the first place to check. The other is the CPU psu itself. I've seen bad capacitors cause the psu to shut down on heavy load but supply power just fine to a lighter load, ie a CPU that draws less power. The other suggestion I would make is to check the BIOS beep codes to see what the beep code means. --Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Re: [H] Odd CPU issue
Clearly you have more experience than me but you did say gone bad because of overheating right? Most components I've had go bad did so for no apparent reason. They just failed at some point. I've never seen a CPU do that and even old socket 462 Athlon XP's shut down when over heated saving themselves from frydom. I base that on the fact that the last one I worked on (2800+) wouldn't run for more than a couple minutes in Windows because it was showing 70C in the BIOS. After I cleaned the gunk off dude's heatsink and applied new TIM. Problem solved and it ran as good as new. I have an ancient PII 333 MHz Slot style CPU right now in my apartment that runs as well as the day it was built in 1997. An old style horizontal HP Vectra and I don't know why I even keep it around.. On Fri, 21 May 2010 17:17:51 -0500, Robert Martin Jr. lopa...@pacbell.net wrote: I've seen at least 5-6 CPU's go bad. Sometimes it's just the cache memory and sometimes the processor. Old athlons would fry pretty quick if the CPU fan goes bad often just within a few minutes. I've probably built or repaired 500+ systems just as a hobbyist. I used to average 3-4 full systems a week back in the old days. Now that I don't have a lot of time, I've probably done new boxes 3 this month. lopaka From: Scoobydo swza...@yahoo.com To: hardware@hardwaregroup.com Sent: Fri, May 21, 2010 2:59:23 PM Subject: Re: [H] Odd CPU issue If you've had experience of several bad CPU's then you must be a system builder with hundreds of builds under your belt. I'm just a hobbyist and have only built 20 or so boxes over the years and I've never even heard of anyone having a CPU go bad until you said it. Bad mobo's, PSU's, hardrives, floppies, optical drives, video cards, RAM, fans etc. I've seen it all with the single exception of the processor. CPU's are by far the most reliable component of any PC, period. Intel and AMD deserve great respect for that major accomplishment. Of course static electricity can kill one pretty easily but that's not going bad, that's user error. Somewhere in this area in a land fill is my original IBM PS/2 486 SX-25 and I'd bet anything that if it were buried functional with no bent or broken pins it would still run if socketed in a working box. I really believe that.. On Fri, 21 May 2010 14:09:01 -0500, Gaffer 14...@castle-computer.co.uk wrote: On Friday 21 May 2010 15:02:35 Scoobydo wrote: I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. On Fri, 21 May 2010 06:24:39 -0500, Thane Sherrington th...@computerconnectionltd.com wrote: I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%2 0ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%2 0ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. Any ideas? T I've had experience of several bad CPU. Having said that, and in view of the tests that the OP has done, BIOS settings are the first place to check. The other is the CPU psu itself. I've seen bad capacitors cause the psu to shut down on heavy load but supply power just fine to a lighter load, ie a CPU that draws less power. The other suggestion I would make is to check the BIOS beep codes to see what the beep code means. --Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Re: [H] Odd CPU issue
The first cpu I've seen go bad was a 100MHz 486 cpu (if I remember correctly) and the cache went bad for no apparent reason. If you disabled the cache the box worked fine albeit very slow. The second was a pentium 233 mmx and problem was identicle to the prior one. I had one celeron 300A go dead for no apparent reason and it had good cooling so it wasn't due to heat. It was in a regular and not overclocked machine. I had a pentium-M 2GHz cpu die completely and it was running a large copper heatsink so it wasn't heat, and I put another 1.7 cpu on the board and it ran well for about another year till the mobo died (that box did run 24/7 as a server/DVR box). The remaining ones however I did suspect heat as the cause of death or dusfunction. I've had a lot more motherboards bite the dust though, sometimes fryed when the PSU went sketchy and sometimes on their own. Lots of power supplies have gone south though (more that mobos + cpus combined) lopaka From: Scoobydo swza...@yahoo.com To: hardware@hardwaregroup.com Sent: Fri, May 21, 2010 3:41:20 PM Subject: Re: [H] Odd CPU issue Clearly you have more experience than me but you did say gone bad because of overheating right? Most components I've had go bad did so for no apparent reason. They just failed at some point. I've never seen a CPU do that and even old socket 462 Athlon XP's shut down when over heated saving themselves from frydom. I base that on the fact that the last one I worked on (2800+) wouldn't run for more than a couple minutes in Windows because it was showing 70C in the BIOS. After I cleaned the gunk off dude's heatsink and applied new TIM. Problem solved and it ran as good as new. I have an ancient PII 333 MHz Slot style CPU right now in my apartment that runs as well as the day it was built in 1997. An old style horizontal HP Vectra and I don't know why I even keep it around.. On Fri, 21 May 2010 17:17:51 -0500, Robert Martin Jr. lopa...@pacbell.net wrote: I've seen at least 5-6 CPU's go bad. Sometimes it's just the cache memory and sometimes the processor. Old athlons would fry pretty quick if the CPU fan goes bad often just within a few minutes. I've probably built or repaired 500+ systems just as a hobbyist. I used to average 3-4 full systems a week back in the old days. Now that I don't have a lot of time, I've probably done new boxes 3 this month. lopaka From: Scoobydo swza...@yahoo.com To: hardware@hardwaregroup.com Sent: Fri, May 21, 2010 2:59:23 PM Subject: Re: [H] Odd CPU issue If you've had experience of several bad CPU's then you must be a system builder with hundreds of builds under your belt. I'm just a hobbyist and have only built 20 or so boxes over the years and I've never even heard of anyone having a CPU go bad until you said it. Bad mobo's, PSU's, hardrives, floppies, optical drives, video cards, RAM, fans etc. I've seen it all with the single exception of the processor. CPU's are by far the most reliable component of any PC, period. Intel and AMD deserve great respect for that major accomplishment. Of course static electricity can kill one pretty easily but that's not going bad, that's user error. Somewhere in this area in a land fill is my original IBM PS/2 486 SX-25 and I'd bet anything that if it were buried functional with no bent or broken pins it would still run if socketed in a working box. I really believe that.. On Fri, 21 May 2010 14:09:01 -0500, Gaffer 14...@castle-computer.co.uk wrote: On Friday 21 May 2010 15:02:35 Scoobydo wrote: I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. On Fri, 21 May 2010 06:24:39 -0500, Thane Sherrington th...@computerconnectionltd.com wrote: I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%2 0ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%2 0ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. Any ideas? T I've had experience of several bad CPU. Having said that, and in view of the tests that the OP has done, BIOS settings are the first place to check. The other is the CPU psu itself. I've seen bad capacitors cause the psu to shut down on heavy load but supply power just fine to a lighter load, ie a CPU that draws less power. The other suggestion I would make is to check the BIOS beep codes to see what the beep code means. --Using Opera's revolutionary e-mail client: http
Re: [H] Odd CPU issue
Scoobydo, If I dig in by bone pile I could offer you a brand new old stock and only use once, spare for your current P2-333. I bought mine because it had some special S-Spec #. If interested, I can share critical numbers. Lopaka speaks true. I personally have had 3 cpu's give up the ghost at initial power up during build-phase. I call this DOA. As you have never seen this, you have been very blessed. JMHO, but I think most of us have large experience with DOA kinda stuff. I do not consider any build I've ever started [complete] until it runs sans errors for its' 6-month Infant Mortality period. Others here have different schedules for their builds! I completely agree with your other points. Good share, but, don't be so quick to give the cpu a pass. Stuff happens hereand bad parts arrive via the big brown truck!! :) Best, Duncan On 05/21/2010 18:41, Scoobydo wrote: Clearly you have more experience than me but you did say gone bad because of overheating right? Most components I've had go bad did so for no apparent reason. They just failed at some point. I've never seen a CPU do that and even old socket 462 Athlon XP's shut down when over heated saving themselves from frydom. I base that on the fact that the last one I worked on (2800+) wouldn't run for more than a couple minutes in Windows because it was showing 70C in the BIOS. After I cleaned the gunk off dude's heatsink and applied new TIM. Problem solved and it ran as good as new. I have an ancient PII 333 MHz Slot style CPU right now in my apartment that runs as well as the day it was built in 1997. An old style horizontal HP Vectra and I don't know why I even keep it around.. On Fri, 21 May 2010 17:17:51 -0500, Robert Martin Jr. lopa...@pacbell.net wrote: I've seen at least 5-6 CPU's go bad. Sometimes it's just the cache memory and sometimes the processor. Old athlons would fry pretty quick if the CPU fan goes bad often just within a few minutes. I've probably built or repaired 500+ systems just as a hobbyist. I used to average 3-4 full systems a week back in the old days. Now that I don't have a lot of time, I've probably done new boxes 3 this month. lopaka From: Scoobydo swza...@yahoo.com To: hardware@hardwaregroup.com Sent: Fri, May 21, 2010 2:59:23 PM Subject: Re: [H] Odd CPU issue If you've had experience of several bad CPU's then you must be a system builder with hundreds of builds under your belt. I'm just a hobbyist and have only built 20 or so boxes over the years and I've never even heard of anyone having a CPU go bad until you said it. Bad mobo's, PSU's, hardrives, floppies, optical drives, video cards, RAM, fans etc. I've seen it all with the single exception of the processor. CPU's are by far the most reliable component of any PC, period. Intel and AMD deserve great respect for that major accomplishment. Of course static electricity can kill one pretty easily but that's not going bad, that's user error. Somewhere in this area in a land fill is my original IBM PS/2 486 SX-25 and I'd bet anything that if it were buried functional with no bent or broken pins it would still run if socketed in a working box. I really believe that.. On Fri, 21 May 2010 14:09:01 -0500, Gaffer 14...@castle-computer.co.uk wrote: On Friday 21 May 2010 15:02:35 Scoobydo wrote: I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. On Fri, 21 May 2010 06:24:39 -0500, Thane Sherrington th...@computerconnectionltd.com wrote: I have an HP machine that won't boot with its CPU in it (boots to three long beeps and then one long continuous beep.) It has a ADA4200IAA5CU in it http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%204200+%20-%2 0ADA4200IAA5CU%20%28ADA4200CUBOX%29.html When I put in another CPU ADA5600IAA6CZ http://www.cpu-world.com/CPUs/K8/AMD-Athlon%2064%20X2%205600+%20-%2 0ADA5600IAA6CZ%20%28ADA5600CZBOX%29.html It boots fine. So one would assume, bad CPU. But when I move this CPU to a test motherboard, the machine boots fine. Any ideas? T I've had experience of several bad CPU. Having said that, and in view of the tests that the OP has done, BIOS settings are the first place to check. The other is the CPU psu itself. I've seen bad capacitors cause the psu to shut down on heavy load but supply power just fine to a lighter load, ie a CPU that draws less power. The other suggestion I would make is to check the BIOS beep codes to see what the beep code means. --Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
Re: [H] Odd CPU issue
At 11:02 AM 21/05/2010, Scoobydo wrote: I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. I'm looking into the BIOS. Doesn't appear to be the power supply. I have seen many CPUs go bad over the years, but I've never seen a CPU stop working on one motherboard and then work in another. That's interesting. T
Re: [H] Odd CPU issue
Thane, Yes. This one is interesting. I follow this thread. But, you have many more m/b's to test with than I. Still this one is most odd.. ? I do so wish I was a BIOS-maven but I am not. I suffer with it on each new tech m/b I buy. I would suspect that the cpu VR's on the m/b have taken a dive. The replacement cpu that you tried did not press them hard enough; so, they just worked OPSNORML once again. JMHO. You always do share good problems! Do you perhaps have ash fallout from the Iceland volcano ATM? If so, all bets are off... :) Best, Duncan On 05/21/2010 22:35, Thane Sherrington wrote: At 11:02 AM 21/05/2010, Scoobydo wrote: I assume you've looked for a borked BIOS setting? Doesn't make sense the CPU is bad. I've never heard of one going bad so must assume something else is happening.. I'm looking into the BIOS. Doesn't appear to be the power supply. I have seen many CPUs go bad over the years, but I've never seen a CPU stop working on one motherboard and then work in another. That's interesting. T
