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Author Topic: 12W CPU - 1055T Undervolted to 1.0V, 4 cores disabled  (Read 1216 times)
tacotime
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July 27, 2012, 08:49:59 PM
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Idle wattage: 82W
Load Wattage: 94W with Prime95, small FFTs

1055T in an Asus M5A99X EVO, 4 cores disabled in BIOS, CPU set to 2GHz and 1.0V

Measured with a kill-a-watt, going to play with the board voltages later

Do I win a prize? :p

Code:
XMR: 44GBHzv6ZyQdJkjqZje6KLZ3xSyN1hBSFAnLP6EAqJtCRVzMzZmeXTC2AHKDS9aEDTRKmo6a6o9r9j86pYfhCWDkKjbtcns
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July 27, 2012, 09:01:34 PM
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Impressive but the CPU load is still >12W. Smiley  The CPU is contributing to the idle wattage.     Maybe 30W-40W total?

What are the rest of system specs.  I am curious for guestimating the "rest of system" load.
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July 27, 2012, 09:12:48 PM
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Impressive but the CPU load is still >12W. Smiley  The CPU is contributing to the idle wattage.     Maybe 30W-40W total?

What are the rest of system specs.  I am curious for guestimating the "rest of system" load.

2 x 4GB 1.5v 1600MHz DDR3
1 x 7770
1 x Wifi card (PCI)
3 x 2000RPM Yate Loon Fans
1 X Hitachi 320GB hard drive

It's probably around 30W total if I had to guess, the dual cores at ~1.4v with the same architecture pull 45W

Code:
XMR: 44GBHzv6ZyQdJkjqZje6KLZ3xSyN1hBSFAnLP6EAqJtCRVzMzZmeXTC2AHKDS9aEDTRKmo6a6o9r9j86pYfhCWDkKjbtcns
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July 27, 2012, 09:49:35 PM
 #4

Impressive but the CPU load is still >12W. Smiley  The CPU is contributing to the idle wattage.     Maybe 30W-40W total?

What are the rest of system specs.  I am curious for guestimating the "rest of system" load.

2 x 4GB 1.5v 1600MHz DDR3
1 x 7770
1 x Wifi card (PCI)
3 x 2000RPM Yate Loon Fans
1 X Hitachi 320GB hard drive

It's probably around 30W total if I had to guess, the dual cores at ~1.4v with the same architecture pull 45W

You can try to use the USB stick instead of a hard drive. This may improve result for another ~ 5W

50btc.com - PPS pool, instant payout (Visa, Liberty Reserve, QIWI, Yandex.Money, WebMoney,...), API, fast and responsible support, pay for stale shares.
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July 28, 2012, 01:40:29 AM
 #5

dropped all mobo voltages by 20%, nb and ht by 100%, cpu to 0.9v and 1400mhz. now at 68w idle, mining at 150w versus 165w with no performance hit. Ddr3 is also at 800mhz/1.1v

Code:
XMR: 44GBHzv6ZyQdJkjqZje6KLZ3xSyN1hBSFAnLP6EAqJtCRVzMzZmeXTC2AHKDS9aEDTRKmo6a6o9r9j86pYfhCWDkKjbtcns
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