AMD Sempron 140 2.70 GHz

[The Gonz]

I am looking at this CPU for a HTPC build.

Does anyone know if this GIGABYTE mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128397

will unlock the second core? It uses the SB710 southbridge. If so this will be an awesome low power, solid performance HTPC.

 

[F2K]

I am looking at this CPU for a HTPC build.

Does anyone know if this GIGABYTE mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128397

will unlock the second core? It uses the SB710 southbridge. If so this will be an awesome low power, solid performance HTPC.

The board can unlock it.

 

[kenkickr]

I am looking at this CPU for a HTPC build.

Does anyone know if this GIGABYTE mobo:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128397

will unlock the second core? It uses the SB710 southbridge. If so this will be an awesome low power, solid performance HTPC.

I used the Sempy 140 with the DDR2 version of that board for a system build. Unlocked but was very unstable with the F2 bios. Flashed it to the F4 bios and it was Linpack stable for 24hrs. I just can't get over how damn quick that system is, with VISTA on it.

Great review by the way Omega.

 

[caleb]

Nice review.

What possible boards are there with DDR2 and this ACC so you can unlock?

 

[LittleLizard]

Nice review.

What possible boards are there with DDR2 and this ACC so you can unlock?

just put on newegg amd motherboard, then sort by ddr2 and then sort by southbridge (sb710/sb750)

 

[[I.R.A]_FBi]

dugg

 

[kenkickr]

Any board using the 710 or 750 southbridge. I would highly recommend the GIGABYTE GA-MA785GM-US2H. I have had 100% success with unlocking on this motherboard and have had more unlockable core procs run stable on this board than any other I have used.

 

[lism]

But for enthusiests, this is sick!! $40 can get a 3.6GHz dual core CPU! Very very nice. Buying any other Regor core seems pointless now. Just get this and unlock and overclock.

Dont get your stakes up too high. Unlocking a second core is having luck, not a habbit

At least that is what i'd like to believe.

Good looking review. Props

 

[Kantastic]

Any board using the 710 or 750 southbridge. I would highly recommend the GIGABYTE GA-MA785GM-US2H. I have had 100% success with unlocking on this motherboard and have had more unlockable core procs run stable on this board than any other I have used.

Hey look it's my board! Too bad I'm not one to take risks...

 

[vfxraven19]

Just jump on this Sempron 140 bandwagon...

Hi all, I just picked up this Sempron from today and tomorrow's Fry's deal, picked up a AMD mobo in addition (Gigabyte GA-MA78LM-S2 w/ AMD SB710). The 2nd core unlocks but Windows 7 seems to complain about it during Windows Setup. I'd have to run it as a Sempron, install Win7, then unlock the core. Anyone else run into this with Win7?

 

[Goodman]

Hi all, I just picked up this Sempron from today and tomorrow's Fry's deal, picked up a AMD mobo in addition (Gigabyte GA-MA78LM-S2 w/ AMD SB710). The 2nd core unlocks but Windows 7 seems to complain about it during Windows Setup. I'd have to run it as a Sempron, install Win7, then unlock the core. Anyone else run into this with Win7?

Not yet i order this sempron friday i'll have it by next week can't wait to try it out hopefully i can unlock & overclock at 3.2-3.4 stable at least , we'll see..?

I run Win7x64 but my board is this one
http://www.youtube.com/watch?v=wHPAT_CVy5Y

 

[Omega]

Got the Sempron 140 with ASRock A785GXH 128M in my HTPC. Win7 Ultimate 64bit installed and second core unlocked without problems.

 

[Deleted member 74752]

Some of us have been showing that to you for some time now...

http://hwbot.org/result.do?resultId=934515

 

[Goodman]

I just came back from the store just a few minutes ago with an Sempron 140...

I'll try to unlock it as soon as have a good cup of tea ...i'll let you know how it goes later on or tomorrow ... wish me luck

 

[Goodman]

Well the sempron 140 unlocked in to dual core easy but was not able to load windows , bsod lol!

I try everything from upping vcore , sbv , nbv , lower clock , lower HT , all different clocks calibration (from +12 , -12) i even try to reinstall windows with the dual core unlocked wich all the installation goes fine until it reboot to load windows the first time & then bsod again...

Anyhow the sempron 140 is going back to the store monday morning & i'll order a real dual core this time the 240 or 250 & see how far i can overclock it...

 

[eidairaman1]

Well the sempron 140 unlocked in to dual core easy but was not able to load windows , bsod lol!

I try everything from upping vcore , sbv , nbv , lower clock , lower HT , all different clocks calibration (from +12 , -12) i even try to reinstall windows with the dual core unlocked wich all the installation goes fine until it reboot to load windows the first time & then bsod again...

Anyhow the sempron 140 is going back to the store monday morning & i'll order a real dual core this time the 240 or 250 & see how far i can overclock it...

Locked CPUs are like a box of chocolates, you don't know what you are gonna get.

that second core was damaged then.

 

[PV9685]

Although this is an old thread, the topic is certainly not dead. I also stumbled upon it by googling "windows 7 64 bit bluescreen on sempron 140" so I assume that others with the problem may find benefit from this info.

I have built two machines with Sempron 140's and both unlock. However, here is the info. My sister's machine is running Vista 32bit - If you go into Event Viewer and create a "Custom View" for the service "WHEA-Logger" you will see a listing of all recorded hardware errors. These are SOOO good when working with the unlocked core.

So my sister's was getting a "Corrected machine check" in the cache on the second core. Corrected is ok, but every few weeks - boom, bluescreen. But it is good to be able to see the log - which not everyone knows exists. It will also let you know that "hey, the BlueScreen was the unlocked core".. not a video card or something.

Now for the fun one - My Fiance's unlocked computer ran Vista 32bit for the last 8 months trouble free! Installed Windows7 64Bit and the installer would complete (Remember, the installer is probably 32bit regardless of version!) but on reboot it would give a messagebox saying the installation had an unknown error and must reboot - repeatedly.

Installed with the CPU locked and it would complete the reboot/install perfectly. Unlock the 2nd core under 64bit Windows7 - few seconds or minutes - boom RESET. Though the reset is recorded as a BlueScreen in the logs (though it is set not to automatically restart.. it doesn't show the bluescreen. The CPU must do like an immediate Forced reset)

The interesting thing is that the errors in WHEA-Logger view under the 64bit system not only record CPU errors - but the Northbridge capturing CPU errors too, perhaps some CRC/ECC like mechanism.

So, I was never aware, but it appears that the 32/64bit parts of the cpu are seperate enough that the 32bit instructions can process flawlessly while 64bit is a no-go. Next week I will be pushing it down to Win7 32bit - unfortunate but, better than running a single core CPU. Kinda.

So when in doubt, try 32 and 64 bit and not just a single flavor. You make get lucky.

BTW - weird little tidbit: I have never been able to get those Sempron 140's to run Ganged Dual Channel mode, memory is always in Unganged Dual Channel.

Both Systems are 785G/SB710, Asus M4A785TD-V EVO