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-   -   N900 Dead - Officially Borked CPU (https://talk.maemo.org/showthread.php?t=71107)

ammyt 2011-03-16 18:37
N900 Dead - Officially Borked CPU
 
As the title implies, OC'ing destroyed it. I was quite unsure whether it really is the CPU fried but it is the case. My N900 can no longer survive a 30% CPU usage for 3 minutes, it would simply freeze no matter what I do. I will then have to long press the power button, and it reboots back again. At idle state, it works. You can view hildon, and the homescreen plus oppening the contacts and the phone app perhaps, but this is the deadline. Whenever the CPU usage exceeds 30% - Death. My hardware revision is 2204, pretty unique but not perfect. What makes a bombshow is that I enjoyed OC'ing it at first to whatever I liked, even @ 1000 - 1150 it was perfect! No reboots, no crashes, no freezing, but it eventually passed out. I'm just glad I have extra 2 N900s here with me, I hearts you 2204.

Megaltariak 2011-03-16 18:47
Re: N900 Dead - Officially Borked CPU
 
It as strange as when you boot, the phone is almost permanently at 100% CPU

dr_frost_dk 2011-03-16 18:47
Re: N900 Dead - Officially Borked CPU
 
Quote:
Originally Posted by ammyt (Post 969099)
As the title implies, OC'ing destroyed it. I was quite unsure whether it really is the CPU fried but it is the case. My N900 can no longer survive a 30% CPU usage for 3 minutes, it would simply freeze no matter what I do. I will then have to long press the power button, and it reboots back again. At idle state, it works. You can view hildon, and the homescreen plus oppening the contacts and the phone app perhaps, but this is the deadline. Whenever the CPU usage exceeds 30% - Death. My hardware revision is 2204, pretty unique but not perfect. What makes a bombshow is that I enjoyed OC'ing it at first to whatever I liked, even @ 1000 - 1150 it was perfect! No reboots, no crashes, no freezing, but it eventually passed out. I'm just glad I have extra 2 N900s here with me, I hearts you 2204.
How long did you have it OC'ed?, and the speed in the period of time was?

This could be a warning to everybody of damage when at a high speed.

Mine is at 850(LV)...

cfh11 2011-03-16 18:49
Re: N900 Dead - Officially Borked CPU
 
I am assuming you have reflashed it and reset to factory settings (WITHOUT restoring any backups) and also reverted to stock kernel? I find it hard to believe that your CPU is fried from OC'ing as I have yet to see one confirmed case of this here.

iDont 2011-03-16 18:55
Re: N900 Dead - Officially Borked CPU
 
This thread reminds me of another one.

You could try locking the frequency to 250MHz (or maybe even 125MHz) and see if the device can be of any use then.

Bratag 2011-03-16 19:06
Re: N900 Dead - Officially Borked CPU
 
Quote:
Originally Posted by ammyt (Post 969099)
As the title implies, OC'ing destroyed it. I was quite unsure whether it really is the CPU fried but it is the case. My N900 can no longer survive a 30% CPU usage for 3 minutes, it would simply freeze no matter what I do. I will then have to long press the power button, and it reboots back again. At idle state, it works. You can view hildon, and the homescreen plus oppening the contacts and the phone app perhaps, but this is the deadline. Whenever the CPU usage exceeds 30% - Death. My hardware revision is 2204, pretty unique but not perfect. What makes a bombshow is that I enjoyed OC'ing it at first to whatever I liked, even @ 1000 - 1150 it was perfect! No reboots, no crashes, no freezing, but it eventually passed out. I'm just glad I have extra 2 N900s here with me, I hearts you 2204.
This doesnt sound like a friend CPU. It sounds more like a cooling issues. When the CPU gets above a certain temp it shutsdown. Can you monitor the temp and see what happens to it right before shutdown.

AMLJ 2011-03-16 19:15
Re: N900 Dead - Officially Borked CPU
 
You sure SmartReflex is off? Just a guess...

Taleydra 2011-03-16 19:21
Re: N900 Dead - Officially Borked CPU
 
Tough claim to make. It could have died even at stock speeds.

Are you going to OC your other phones?

videohese 2011-03-16 19:30
Re: N900 Dead - Officially Borked CPU
 
lol. oh i have overclocked my computa, and it went bad? how can i comply? :D freakin ace post!

Lemonadium 2011-03-16 19:34
Re: N900 Dead - Officially Borked CPU
 
It's the heat that damages components not overclocking.

tswindell 2011-03-16 21:33
Re: N900 Dead - Officially Borked CPU
 
As discussed in other threads, the OMAP3 in the N900 has a severely reduced finite life when clocked over it's stock specification. Just read the specs on the processor. I can't be bothered to get into any details, but @Lemonadium, you're talking rubbish.

ammyt 2011-03-16 21:45
Re: N900 Dead - Officially Borked CPU
 
Quote:
Originally Posted by AMLJ (Post 969128)
You sure SmartReflex is off? Just a guess...
I tried to turn it off (had it on) but I guess it came late? The device restarted again,

ammyt 2011-03-16 21:46
Re: N900 Dead - Officially Borked CPU
 
Quote:
Originally Posted by Taleydra (Post 969132)
Tough claim to make. It could have died even at stock speeds.

Are you going to OC your other phones?
Nope. I guess 600 MHz is good with me. I can OC one though, to 750 MHz limit.


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