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11 Posts

11-14-2013

Slovakia

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  • Message 211 of 419

Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-25, 21:15 PM

Hi there,

 

I have i5-4200M + 8 GB RAM + 1 TB (+8 GB cache) + GT740M + 1366x768. My bios version is 8DCN25WW  from 08/29/2013, motherboard model AILZAZBZC 31900003STD, southbridge ID8C49 rev. 05. I have a problem with stuck at 0.77 Ghz too.

 

Please, which bios can I download, and where? 8DCN39WW? Is it correct? Different between number of my old bios and new bios is only in number "25 -> 39". 

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34 Posts

09-16-2012

ChicagoLand

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Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-25, 22:36 PM
Hey Pejp. It is not necessarily true that the 39WW is meant for your pc. A few of us on the forums (including myself) reached out to lenovo technical support and let them know about our issues. You should do the same. Let them know the issues you were having, include the model and serial number, link in this forum so they can see many people with this issue, and ask them to provide a fix. I did that and they sent me the 39WW bios, but you may need a different one and they should be able to tell you what you need.
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2 Posts

05-26-2014

Philippines

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  • Message 213 of 419

Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-26, 1:44 AM

Hello Guys,

 

I got a problem too with z510 , I have intel core i7 4702 and my bios 8DCN38WW . as i read the tread I found that some of youhas the bios update now  . can someone send me a link to it?.

 

Thanks a lot ,

Von

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81 Posts

05-04-2014

India

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  • Message 214 of 419

Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-26, 5:04 AM

I think guys who flashed 39ww BIOS are all with mainboard model : viuu4
including me. So we dont garanteed about yours which differs from us, asking the lenovo support is best option for your model.

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2 Posts

05-26-2014

Philippines

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  • Message 215 of 419

Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-26, 5:31 AM

 

Link to picture

 

I think I hae same mainboard as yours .. 

 

Moderator note; picture(s) converted to link(s) About Posting Pictures In The Forums

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81 Posts

05-04-2014

India

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Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-26, 6:02 AM

@mgfreak I think you should flash BIOS then with assurance of lenovo customer care assistant support.So that anything goes wrong your warranty will not be void.

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31 Posts

03-17-2014

Romania

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  • Message 217 of 419

Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-26, 8:25 AM

sooo this is mine... can you guys give me the e-mail of support? the one that they sended you the bios please.

 

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34 Posts

02-19-2014

Nederland

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  • Message 218 of 419

Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-26, 10:52 AM
Support told me to contact my local service center, but they are not aware of the issue.
Oh joy....
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34 Posts

09-16-2012

ChicagoLand

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  • Message 219 of 419

Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-27, 0:51 AM

wrote:
did you test that in battery mode?

Hi Iknaidu,

Ok, I tried it with the battery like you suggested, and I dob't get the exact problem, but I do get an issue that if you shut down or sleep while on power, then turn it back on with it on battery, then it still locks at .77GHZ.  Grrrrrrr so frustrating.  But just like you said, when you plug back in, and then unplug again, it goes back to normal.  

 

Why is this so wonky?  Seems like proper power management is pretty important to get right for a $700+ laptop.  

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81 Posts

05-04-2014

India

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  • Message 220 of 419

Re: Lenovo Z510 CPU stuck at 0.77GHz

2014-05-28, 5:43 AM

even if this is issue is lil bit resolved by BIOS 39ww still I am not completely comfortable with this BIOS 39ww I dont think its very stable. Its clocking my processor so much higher even when idle in HIGH mode in LEM(lenovo energy man.). :P

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