Search found 372 matches

by electrodacus
Sat Aug 22, 2009 3:47 pm
Forum: Green Computing
Topic: Quad Q8400S undervolt 0.925V 24W one fan need to be removed
Replies: 99
Views: 57488

I have no idea how much Blender 3D stresses a CPU and running using 8 threads might actually lower performance. I’d be curious to know how much the system consumes when running Orthos as there’s more data available to make a comparison. So it boots at a FSB lower than 333 but not below 300! You...
by electrodacus
Sat Aug 22, 2009 10:56 am
Forum: Power Supplies
Topic: Pico Psu 150Watt power brick or alternatives
Replies: 38
Views: 32953

Hi, All PicoPSU and similar are only generating 5V 3.3V and -12V the +12V is used directly from brick so the power output is far from 150W for PicoPSU 150W . from spec of PicoPSU-150-XT you get 5V at 6A this is 30W; + 5VSb 1.5A 7.5W; 3.3V at 6A 19.8W; and -12V at 0.05A 0.6W so the total power is 57....
by electrodacus
Sat Aug 22, 2009 10:13 am
Forum: Green Computing
Topic: Quad Q8400S undervolt 0.925V 24W one fan need to be removed
Replies: 99
Views: 57488

Quad Q8400S undervolt 0.925V 24W one fan need to be removed

I have a Q8400S is an engineering sample from eBay. I will like to go lower than 2Ghz but it will not boot for lower than 1.8Ghz. The CPU at 2GHz (6x333) and 0.925V is using 4W idle and 24W at 100% load. Some measurement power consumption for complete system. . Old 275W SFF ATX [Watt] see http://ele...
by electrodacus
Mon Jul 27, 2009 10:41 pm
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

power supply

Today the power supply arrived I have more so if you are interested please let me know. It seems to be very good quality it needs 24V (still need to get the brick 24V at 7.5A ) I tested to see how it works doesn't need any load and is not working with 15V IN it needs minimum 16.5V I tested with a 18...
by electrodacus
Wed Jul 22, 2009 10:12 am
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

why do you insist on zero moving parts? a couple of 80mm fans at 5v should be completely silent. Yes they will be almost silent but for me the dust that this are moving around is also a problem and also the additional power requirement at 5V is not much but if you have 2 or 3 then they can add over...
by electrodacus
Wed Jul 22, 2009 10:08 am
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

The only problem with completely passive systems is the south bridge tends to overheat without any air flowing over it. When that happens, data corruption soon follows. Try copying 20gb of data on a completely passive PC without adequate SB cooling. The stock SB heatsink on the Gigabyte boards is w...
by electrodacus
Mon Jul 20, 2009 3:42 pm
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

The biggest problem now will be the north bridge maybe a P4 heat sink will work I just ordered a SSD SAMSUNG MCBQE32G5MPP It seams to have a max power of 0.48W and idle 0.2W so it will not produce any heat I have now a 60GB 2.5" SATA HDD but it takes at load about 2.5W an is getting hot. I hope to r...
by electrodacus
Sun Jul 19, 2009 5:57 pm
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

OK I received the heatsink today an I already installed and tested the bad news is that even with 25Watt it will not be able to run passive. That heat-sink is designed to have forced airflow (i.e. in close proximity to a fan). The close fins cause too much drag for efficient convection cooling. Thi...
by electrodacus
Fri Jul 17, 2009 7:47 pm
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

A photo with the size difference between intel copper (360g) core and AXP-140 (550g)

Image
by electrodacus
Fri Jul 17, 2009 7:47 pm
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

Height
Image
by electrodacus
Tue Jul 14, 2009 3:48 pm
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

AXP-140

OK I received the heatsink today an I already installed and tested the bad news is that even with 25Watt it will not be able to run passive. Is better than the intel heatsink I have the 360g version with copper core but not good enough to run passive. I guess that the only solution is to use a big s...
by electrodacus
Sun Jul 12, 2009 10:49 am
Forum: General Gallery
Topic: ZERO MOVING PARTS??? My new HTPC wants to be 100% silent!!!
Replies: 32
Views: 17057

Thermalright axp-140

I have ordered the same heatsink AXP-140 hope to get him by next week it will be used passively to cool my quad core a Q8400s (65W TDP) original is 2.66Ghz but if I undervolt and and underclock to 2Ghz (6x333) and 0.925V it will only take less than 24W under load using prime 95. [img]http://www.gree...