Phenom II X3-720BE Confirmed running 4 cores on GIGABYTE MA790GP-UD4H

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Originally Posted by jlacy76

What board works the best and what bios? Seems some say fx/gx some say only one not the other.

Any consensus yet?

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I have a few SB750 boards, I will try them all and see what I get with mine. Might depend on bios versions also...

i have the GA-MA790FXT-UD5P + X3 720, and i couldnt see a setting in the BIOS for auto ACC.

I have the 0904 cpmw stepping. That one is said to work as well.

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Originally Posted by Ross1

i have the GA-MA790FXT-UD5P + X3 720, and i couldnt see a setting in the BIOS for auto ACC.

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At the main bios screen press Ctrl + F1. It will give you more bios tweak options.

Can someone with a 3-core/790GX combo run a stability test with the 4th core enabled on stock settings?

Prefered would be something like OCCT or a Linpack program for an hour or 2 (more if you're up for it!). Prime is good but I want a 24h+ to consider it stable:rofl:

I have had sort of the same thing happen to me with a 7750 Kuma. Sometimes it boots up as a 4 core "engineering sample" on a Biostar TA790GX 128. When it does, it runs fairly hot. That may be why the other 2 cores were "disabled" (but no quite) on mine.

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Originally Posted by mngdew

At the main bios screen press Ctrl + F1. It will give you more bios tweak options.

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I always forget about that..... anyway I set it from disabled to auto, but it doesnt seem to enabled a 4th core. Still says 3 cores and 3 threads in cpu-z.

Testing Specification

• Prosessor AMD Phenom II X3-720 Black Edition
• Motherboard GIGABYTE GA-MA790GP-UD4H BIOS F1
• Memory Team Xtreem DDR2-1300 2 GB Kit
• VGA GIGABYTE GeForce GTX260 (192SP)
• PSU GIGABYTE Odin Pro 1200 Watt
• Heatsink Thermalright Ultra 120 Extreme + Scythe Kaze 120mm 3000 rpm fan

Benchmark Comparison 3 core vs 4 core.

Cinebench R10

3 Core

http://img.photobucket.com/albums/v6...nebench_x3.jpg

4 Core

http://img.photobucket.com/albums/v6...nch_3600_4.jpg

PCMark Vantage

3 Core

http://img.photobucket.com/albums/v6...vantage_x3.jpg

4 Core

http://img.photobucket.com/albums/v6...ge_3600_x4.jpg[/COLOR]

3DMARK 2006

3 Core

http://img.photobucket.com/albums/v6...s/3dm06_x3.jpg

4 Core

http://img.photobucket.com/albums/v6...s/3dm06_x4.jpg

WPrime

3 Core

http://img.photobucket.com/albums/v6.../wprime_x3.jpg

4 Core

http://img.photobucket.com/albums/v6...me_3600_x4.jpg

Comparison Table

http://img.photobucket.com/albums/v6...comparison.jpg

A fully formed fourth core. Nice one.

How much can we read into the benchmark comparison re extra core vs sharing the lvl3 cache ?