Hello there,

I have a Sempron 140 Sargas. I dont want to overclocking, I want to downclocking (lol)

I use it in a htpc which also works as server-downloading device, so I usually dont need much power.

Wattage is only 45W but temp not as low as I thought it would.
I put on a Xigmatek Loki SD963 heatpipe, fanless (no fans exist in the case at all).
Sempron temps are from 64oC to 70oC+... Idle of course. The most I saw so far was 78oC during an antivirous scan.

Specs for Sempron say--> voltages 0,825V - 1.35V
With cool & quiet I see it minimum 1.1V...
How can I get it lower, maybe to 0,82V?

-------------------------
PhenomII x4 960T+Scythe Mugen 2 FANLESS
Gigabyte GA-MA770T-UD3
Corsair 8GB 1333MHz 1.5V XMS3
Gainward 9800gt green+Arc.Cooling Accelero FANLESS
Intel X-25M 160GB SSD
Silverstone Nightjar 450W FANLESS
CoolerMaster Sileo RC-500
Win 7 Ultimate 64bit

Noster,

BIOS is your best bet to lower overall core voltage, which is where you want to start. Also, you can always drop the multiplier (also in BIOS). A program called CrystalCPUID used to work with the K8's in windows to manage core voltage and multiplier in realtime. I used it to lower the core voltage in my laptop, where I couldn't get to the BIOS. My Turion ML-34 used to boot at 1.35Vcore, which was strange since stock voltage was 1.3V. I lowered all the way down to 1.15V, still at stock 1.8GHz and it was stable. Lowered temps a LOT, and battery life got a modest 45min~1hr boost.

Anyway, I haven't seen a K10 iteration available of CrystalCPUID. As far as Cool-n-Quiet hacking goes, it seems a program called K10stat can help you out in adjusting the values. Tom's Hardware does an excellent job guiding you through how to use the program, testing, and troubleshooting the program. It's a long read, but well worth it.

Tom's Hardware

Good luck!

-------------------------
Supporting the Underdog
Gigabyte GA-MA790X-UD4P
720 Phenom II X3 (Unlocked to X4) w Zalman 9700LED 3.76Ghz (17.5X215)
Corsiar 520w PS
HIS 4850 (700/1133) w Fatal1ty FC-ZV9
4 GB XMS2 6400 + 4 GB G.Skill 6400 4-4-4-15
2 Seagate 500GB 7200.11 + 150GB Raptor
Westinghouse LCM-22w3
Fatal1ty 1010 mouse

Yes of course I know that I can downrate the clock through bios, but I dont want something permanent. Just to get low when idle, not when I watch HD movie(like what cool&quiet does).
Can this CrystalCPUID low down to 0,82V (auto OR when I order it) ?

-------------------------
PhenomII x4 960T+Scythe Mugen 2 FANLESS
Gigabyte GA-MA770T-UD3
Corsair 8GB 1333MHz 1.5V XMS3
Gainward 9800gt green+Arc.Cooling Accelero FANLESS
Intel X-25M 160GB SSD
Silverstone Nightjar 450W FANLESS
CoolerMaster Sileo RC-500
Win 7 Ultimate 64bit

No, cystalCPUID won't work for K10 architecture. You need to mod the cool'n'quiet settings to undervolt automatically.

-------------------------
Supporting the Underdog
Gigabyte GA-MA790X-UD4P
720 Phenom II X3 (Unlocked to X4) w Zalman 9700LED 3.76Ghz (17.5X215)
Corsiar 520w PS
HIS 4850 (700/1133) w Fatal1ty FC-ZV9
4 GB XMS2 6400 + 4 GB G.Skill 6400 4-4-4-15
2 Seagate 500GB 7200.11 + 150GB Raptor
Westinghouse LCM-22w3
Fatal1ty 1010 mouse

And how can I mod it?

-------------------------
PhenomII x4 960T+Scythe Mugen 2 FANLESS
Gigabyte GA-MA770T-UD3
Corsair 8GB 1333MHz 1.5V XMS3
Gainward 9800gt green+Arc.Cooling Accelero FANLESS
Intel X-25M 160GB SSD
Silverstone Nightjar 450W FANLESS
CoolerMaster Sileo RC-500
Win 7 Ultimate 64bit

Read the article I posted on Tom's Hardware

-------------------------
Supporting the Underdog
Gigabyte GA-MA790X-UD4P
720 Phenom II X3 (Unlocked to X4) w Zalman 9700LED 3.76Ghz (17.5X215)
Corsiar 520w PS
HIS 4850 (700/1133) w Fatal1ty FC-ZV9
4 GB XMS2 6400 + 4 GB G.Skill 6400 4-4-4-15
2 Seagate 500GB 7200.11 + 150GB Raptor
Westinghouse LCM-22w3
Fatal1ty 1010 mouse