How to downgrade 3770 to 3770s.

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Dottlo
Posts: 3
Joined: Thu May 10, 2012 1:06 am

How to downgrade 3770 to 3770s.

Post by Dottlo » Thu May 10, 2012 1:23 am

Hi all,

I am looking a way to downgrade my 3770 to 3770s. As I know it's not just setup multiplier in mobo bios but also 3770 has another core voltage. Did anyone try to do this?

StartledPancake
Posts: 36
Joined: Sat Jun 27, 2009 4:31 am
Location: Netherlands

Re: How to downgrade 3770 to 3770s.

Post by StartledPancake » Thu May 10, 2012 10:16 am

Dottlo wrote:Hi all,

I am looking a way to downgrade my 3770 to 3770s. As I know it's not just setup multiplier in mobo bios but also 3770 has another core voltage. Did anyone try to do this?
I tried with an 3550, however on an MSI motherboard I'm unable to set a lower multiplier limit (it gives an "Incorrect option" error). Did you have success with the multiplier alone?

As far as I know, the S and T chips use the same voltage at the same frequency as the standard version.

Dottlo
Posts: 3
Joined: Thu May 10, 2012 1:06 am

Re: How to downgrade 3770 to 3770s.

Post by Dottlo » Thu May 10, 2012 11:57 pm

Frankly speaking, 3770 hasn't my yet, but I guess it will be as there is no S in my country :(.
So, I haven't try to do this.

yuu
Posts: 132
Joined: Sun Aug 26, 2007 5:03 pm
Location: eu

Re: How to downgrade 3770 to 3770s.

Post by yuu » Fri May 11, 2012 10:47 am

The two are not that much different

i7-3770 E-1 3.4 / 1600 / 650
4 core: 3.7
3 core: 3.8
2 core: 3.9
1 core: 3.9

i7-3770S E-1 3.1 / 1600 / 650
4 core: 3.5
3 core: 3.6
2 core: 3.8
1 core: 3.9

The 3770 probably has 1.100 V at turbo multiplier 3.7Ghz and 3770S something like 1.07 V at 35x. 2x 0.015V for 2 steps down. I haven't tried but 3770s can't possibly be lower than 1 Volt at default turbo multipliers.

limit the cpu Power manually and set the turbo multipliers for each core. so that the cpu will set the multiplier and voltage accordingly to keep it below 45 watts.

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