AMD Athlon X2 3250e 22W TDP Processor

[Lightman]

WOW!

This is great to watch!

BTW soon we will get platforms from AMD capable of running within 25W envelope! These will be more of a competitor to Intel Atom and ULV Penryns.

Want to know more??

[chew*]

Off topic Majord but how is the jigabyte board treating you?

[Calmatory]

some more underclocking action to stir with

Which mobo allows such low voltages?

Since when have thermal sensors in Brisbanes worked? I.e. CoreTemp readings are wrong.

[justapost]

some more underclocking action to stir with

You groundbreaker, mine freezes at 0.8V
Also had an CubeCase running whit an 4850e and an HSF without fan. CPU temp (not core temp) maxed out at 50-55°C. CPU temps are normaly above the real temps. The sensors is onboard somewherennear or beyond the socket so he is also affected if the pwm area runs hot. Tested it like that: Placed a fan ower the pwm area and cpu+pwm sensor readings dropped. CPU itself was on water cooling.

Which mobo allows such low voltages?

Since when have thermal sensors in Brisbanes worked? I.e. CoreTemp readings are wrong.

0.6V is lowest possible on asrock.

[The Coolest]

Which mobo allows such low voltages?

Since when have thermal sensors in Brisbanes worked? I.e. CoreTemp readings are wrong.

Recently I got information that *edit: 65nm* AM2 K8s DTS under reports by 21C. This comes directly from AMD as a patch for lmsensors in Linux.

[chew*]

Which mobo allows such low voltages?

Jigga whats its name Jigga my Gigga dun dun dun dun........ sorry everytime i think of gigabyte i think of Jay z

790gx gigabyte board

[Mats]

Those guys at Guru3D uses a 1000 W PSU, brilliant. Imagine the efficency at 3 % load.
Here's another 330 system review, this one have a PicoPSU.

[Calmatory]

Recently I got information that AM2 K8s DTS under reports by 21C. This comes directly from AMD as a patch for lmsensors in Linux.

So instead of 50/52 C, 71/73 C are the accurate temps?

[knopflerbruce]

So instead of 50/52 C, 71/73 C are the accurate temps?

I kinda find that hard to believe, if 21c is true for ALL K8 CPUs I've had temps at 100c during alot of air sessions... and when i kill chips it's usually not when they're in the socket

I'd like to have some proof... To my eyes these sensors were never that much off. My 2 856's had idletemps at 22c and 25c at stock in my server today, ambient was 11-12c (didnt close the window before I left for my x-mas holidays). Idling at ~35c above ambient at stock voltage and speed with GOOD coolers (blue orb II and the stock opteron cooler with LOTS of copper) seems like x-files to me.

[Calmatory]

I kinda find that hard to believe, if 21c is true for ALL K8 CPUs I've had temps at 100c during alot of air sessions... and when i kill chips it's usually not when they're in the socket

I'd like to have some proof... To my eyes these sensors were never that much off. My 2 856's had idletemps at 22c and 25c at stock in my server today, ambient was 11-12c (didnt close the window before I left for my x-mas holidays). Idling at ~35c above ambient at stock voltage and speed with GOOD coolers (blue orb II and the stock opteron cooler with LOTS of copper) seems like x-files to me.

I believe it applies to Brisbanes.

I find it hard to believe aswell. Brisbane idles at 14-19C, while HWMonitor shows 34C. When HWMonitor shows around 55-60, CT shows the same. When HWM shows 80C, CT shows around 100C or so.

However, if it does not apply for brisbanes.. I ran Windsor @ 110C both cores, and thats what CT showed. Add 21C and you got 131C.

Note: CPU's don't burn so easily really, they crash first.

[mAJORD]

Off topic Majord but how is the jigabyte board treating you?

It's OK, i've ahd no failures, or cold boot issues, but it doesn't overclock my Phenom 1 very well. Overpriced IMO. for a budget board i'm more impressed with its baby 780G brother, MA78-DS3HP, much cheaper but OC's pretty well.. all it needs is better pwm cooling. Also lacks sb750 in exh for sb700. But no ones that fussed about the 750 anymore :p

Which mobo allows such low voltages?

Since when have thermal sensors in Brisbanes worked? I.e. CoreTemp readings are wrong.

Recently I got information that AM2 K8s DTS under reports by 21C. This comes directly from AMD as a patch for lmsensors in Linux.

I think you'll find this is fixed in G2 Stepping, OR coretemp is taking it into consideration in this version (0.99)

I am confident of this now as when it reports say 40c at idle, the actual heat spreader is only luke warm to touch.. At idle power at such a low voltage the thermal resistance between the ish top and the chip itself would be totally negligable, so in this case IHS temp = core temp minus say 1 or 2c at most.

[The Coolest]

I believe it applies to Brisbanes.

I find it hard to believe aswell. Brisbane idles at 14-19C, while HWMonitor shows 34C. When HWMonitor shows around 55-60, CT shows the same. When HWM shows 80C, CT shows around 100C or so.

However, if it does not apply for brisbanes.. I ran Windsor @ 110C both cores, and thats what CT showed. Add 21C and you got 131C.

Note: CPU's don't burn so easily really, they crash first.

You're right, I forgot to mention it was for 65nm AM2 K8 only, I'll try to see if it's G1 only, but from my understanding the offset applies to all rev G chips.

[justapost]

Recently I got information that *edit: 65nm* AM2 K8s DTS under reports by 21C. This comes directly from AMD as a patch for lmsensors in Linux.

Current Temperature for K8 RevG desktop CPUs is a "normalized value"
which can be below ambient temperature.

As a consequence lots of RevG systems report temperatures like:

 sensors
 k8temp-pci-00c3
 Adapter: PCI adapter
 Core0 Temp:
              +17C
 Core0 Temp:
               +3C
 Core1 Temp:
              +21C
 Core1 Temp:
               +5C

being quite below ambient temperature.
There are even reports of negative temperature values.

This patch corrects the temperature reporting of k8temp for
RevG desktop CPUs.

Cc: Rudolf Marek <r.marek@assembler.cz>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
---
 drivers/hwmon/k8temp.c |   17 +++++++++++++++--
 1 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c
index ff12281..b138f79 100644
--- a/drivers/hwmon/k8temp.c
+++ b/drivers/hwmon/k8temp.c
@@ -49,6 +49,7 @@ struct k8temp_data {
 	u8 sensorsp;		/* sensor presence bits - SEL_CORE & SEL_PLACE */
 	u32 temp[2][2];		/* core, place */
 	u8 swap_core_select;    /* meaning of SEL_CORE is inverted */
+	u32 temp_offset;
 };
 
 static struct k8temp_data *k8temp_update_device(struct device *dev)
@@ -116,13 +117,15 @@ static ssize_t show_temp(struct device *dev,
 	    to_sensor_dev_attr_2(devattr);
 	int core = attr->nr;
 	int place = attr->index;
+	int temp;
 	struct k8temp_data *data = k8temp_update_device(dev);
 
 	if (data->swap_core_select)
 		core = core ? 0 : 1;
 
-	return sprintf(buf, "%d\n",
-		       TEMP_FROM_REG(data->temp[core][place]));
+	temp = TEMP_FROM_REG(data->temp[core][place]) + data->temp_offset;
+
+	return sprintf(buf, "%d\n", temp);
 }
 
 /* core, place */
@@ -176,6 +179,16 @@ static int __devinit k8temp_probe(struct pci_dev *pdev,
 				 "wrong - check erratum #141\n");
 		}
 
+		if (((model >= 0x68) && (model != 0xc1)) &&
+		    !(model == 0x68) && !(model == 0x6c) &&
+		    !(model == 0x7c))
+			/*
+			 * RevG desktop CPUs (i.e. no socket S1G1 parts)
+			 * need additional offset, otherwise reported
+			 * temperature is below ambient temperature
+			 */
+			data->temp_offset = 21000;
+
 		break;
 	}

I think this is the patch you mentioned.

if (((model >= 0x68) && (model != 0xc1)) &&
+		    !(model == 0x68) && !(model == 0x6c) &&
+		    !(model == 0x7c))

These are the constrains for the +21°C offset. Comments mention revG but there are a few excludes in the if clause.

[The Coolest]

Basically everything that is NOT AM2 RevG chip is excluded.

[justapost]

Basically everything that is NOT AM2 RevG chip is excluded.

Thanks, already had found that model value represents the model part of the cpuid. But could not figure out the relation between cpu and model number.
Sidenote:
Rudolf Marek had posted an modified k8temp with k10 support few month back. Tcontrol_max is 70°C but phenoms have this offset value which must be manualy tweaked for calibration purpose. I think this makes proper reading difficult on k10's.


The offset can be in the range +10°C - -56°C, so in the worst case the core temp shown is 10°C below the real temperature.

[Lightman]

Good news!

These processors are coming to RETAIL!!

Source: Techpowerup.com

[Calmatory]

Guess I will throw the old X2 3600+ Windsor to the trash bin and get X2 3250e instead(for low power server), just mere 50-60 euros.

[justapost]

That chip is also suitable for an low power/budget virtual server. In opposite to intel all x2's have hardware virtualisation support.

[knopflerbruce]

Good news!

These processors are coming to RETAIL!!

Source: Techpowerup.com

OMG, I just paid $50 for one... and they'll cost less than that brand new Oh noes

[chew*]

Good news!

These processors are coming to RETAIL!!

Source: Techpowerup.com

Thats good news, I've been chomping at the bit for one of these, It seems amd has been reading the forums and is listening to can the original plan of OEM only with these

[kenofstephen]

Another naughty boy
the 15W 2650e,
it is not as new as the 3250e (just released),
but it is good for fanless setup.

[knopflerbruce]

Sweet. I'll post my OC's here with that one once my chip arrives (I guess I have to wait 2-3 weeks, depending on how fast I fill the flat rate envelope my mate prefers when he ships my stuff to me - 15 chips in each package).

I'm glad the G2's seem to take quite high HTT, I have a feeling 3.6-3.8 is the max limit of these chips on air (suicide), and then I need like 450-475mhz HTT

[TheScavenger]

What case is that, kenofstephen? Is it a mini-ITX specific case?

I have a 5050e and I love it!

[keyboard]

Another naughty boy
the 15W 2650e,
it is not as new as the 3250e (just released),
but it is good for fanless setup.

Please , OC it !

[justapost]

Lowest possible suicide here, VID is 0.765V. 0.75 does not get into windows.
http://valid.canardpc.com/show_oc.php?id=479765