Toshiba Satellite c850-13c cpu upgraded but it shuts off after exactly 30 minutes!? Help!

Hello everybody-)
That's my actual (strange situation): I have upgraded my satellite c850-13c (intel celeron b820m), with i3-2350m. The problem is that after exactly 30 mins, the pc goes completely off, like a temp problems or similar. But I have checked and the temps are really goo (max 60° core, max 60° mb, max 35° Hd). Tried to make a stress test with prime (all ok), tried to reflash the bios, tried everything but without success. The pc goes off after 30mins also if you leave it in bios! I have also tried to reinstall the cpu and change the heatsink paste, tried to check all the connection and cables... the strange is.. the cpu is recognized, works like a charm also in stress mode, but also if you live it in idel goes off. Any ideas and suggestions? Maybe some incompatibility? I've checked and the c850 can be buyed also with intel i3-2348m in origin and withe the same mobo/components.
Please help help help!

 

uuupp.... help me...

 

try to turn off thermal management or cpu throttling in the bios. Also run memtest

 

Thanks, but i have not advanced bios menu and no possibility to switch it off...

 

I have the exact same problem but with a core i5 cpu upgrade.After exactly 29:45 minutes the laptop shut's down without warning.The original b820 celeron works fine.No overheating problems , no virus (it does it in bios also) , bios is updated to the latest version.What could be the problem ???

 

good thing i found this thread .... i wanted to trade the i5 with a i3 but it looks like satellite notebooks just won't accept a more powerfull processor than the original .... probably the PSU just can't handle a bigger load .... dissapointed ....

 

Dear hellfire, I tried all the possible solutions, and i'm even happy to found somebody in the same situation, just to be safe that i'm not incomptetent or stupid! Anyways, yes, maybe also mine stops after 29.45 but I was not really precisious to take a timings... However the TDP of celeron b820 and the i3 i used, it's exactly the same and why it stops in idle and i i will stress the cpu with prime it looks stable at all? That's my question. I think there is some kind of controller/timer in bios. I'm tryng to search for a mod bios to test it in advanced menu... Keep in contact!

 

Up..... any kind of suggestion??

 

Shutting off after 30 minutes seems intentional on Toshiba's part (I can't imagine otherwise); perhaps some sort of code in the CPU.

Despite the number of CPU upgrades I've seen on this forum (both successful and unsuccessful), this is a new one for me. I edited the thread title so hopefully you'll get a few more replies w/ ideas.

 

Are these ES or QS CPU's (i.e. not retail or oem)? Maybe Intel added that as a security feature so these chips don't sell any more? I dunno, I'm at a loss too.

 

Have you tried reinstalling the original CPU, does it power off after 30 minutes? Perhaps your new CPU is bad (sounds like a short or something).

 

Thanks to all. The cpu is picked from hp notebook and is 100% working. Amother user here have the same identical problem, and i think too there is a kind of cpu whitelist in toshiba's bios. But the strange is why after 29 mins and 45 sec? Whitelist normally cause a no boot of the pc....

 

any news guys?

 

After some research, I found out that our problem seems to be that the bios from our satellites has a very small compatibilty list of processors.The only solution here is a modded bios and i was actually surprised to find out that a lot of people mod their bios for different problems.This however is not a simple thing to do and it comes with its own risks but I wroted on the forum of bios-mods about the problem and hopefully somebody can help us.

 

uhmm.. the same i've done. But seems there is nobody that can help us... i wrote a post with the bios mod request, but no answer.... Hope you will have some good news for me too!

 

The only solution is a manual fix in bios . Chances that somebody will even try are minimal considerin that the satellite is a low-budget laptop.In fact that's what Toshiba did . No upgrades for low-budget line ... buy the expensive stuff....anyway .....Who wants to buy a i5 CPU ? )

 

I have a Sony Vaio Z13 and same 30 minute shutdown. It seems the manufacturers are purposly doing this. Shame on them.
Did anyone find a workaround, I would be most grateful for help.

Summary:
I messed up my bios trying to get TRIM to work.
Now every time I turn on my VPCZ13C5E I immediately Get this message "ME FW update failed please try again" I obviously lost all my ME region/sector info.
Then it boots normally but now my laptop always switches off after EXACTLY 30 minutes.
Even if you leave it on for 30 minutes on the bios page, that is before loading the operatimg system, it switches off after EXACTLY 30 minutes proving this is a bios problem not an operating system problem.
I have re-flashed original latest Sony firmware V R3031C3.

 

Why would this be a shame on manufacturers? A CPU is typically not considered a CRU (Customer Replaceable Unit) and should be taken with a grain of salt. Yes, Dell, Acer, certain Lenovo don't care if you upgrade the CPU, but that is the OEM's choice. They don't want people putting in untested CPUs, and who knows if the heatsinks they've used could cool a CPU. What if someone tried to put in a 2920XM and it shorts the motherboard (like motherboard circuitry cannot handle the load, heatsink, etc)? Is that the customer's problem or Toshibas? ASUS even puts a sticker over the CPU for certain models, if the seal is broken, they consider your warranty void.

 

People should be free to do what they like with their own property!! We are not imbeciles we can decide for ourselves, we choose to take risks or not, before or after warranty period.
Manufacturers want us not to update and improve our own property so they make it very difficult for us so we upgrade by buying a new model from them!

 

Then you should do your research up front and realize Toshiba and some older Acers are very very picky about CPU upgrades. And if you really wanted, you could try finding a modified BIOS. And the major concern is for people under warranty. Let's say Person A puts a 2920XM where the normal Celeron is and fries the motherboard after 24 hours of testing. Then he swaps out the CPU and RMA the laptop. That's classic fraud. A simple BIOS whitelist takes care of that.

That's a major reason I buy Dell/Alienware/Sager for my gaming laptop needs, you are pretty much free to upgrade anything, they don't care.


Sent from my iPhone using Tapatalk

 

The manufactures, for their own profit, hide behind the dishonest people who RMA fraudulently and we all suffer as a result. However the manufactures know this and use it to manipulate all us honest people who want full control of our own property.... exactly why you buy from Dell/Alienware/Sager who leave you free to make your own decisions, good or bad, as it should be, after all it is your own property.

Anyway I was only trying to re-assure and support the person who started this thread and hoping for a bit of help for myself.

 

Except that logic doesn't pan out with like say music. You bought the CD, but it doesn't give you free reign to go pirate the music, you are limited to what they allow you to do. If you free so strongly about a whitelist, go ahead and send your laptop manufacturer an angry letter about it, I doubt you'd get far.