IC7 rail voltage measuring ?

[eva2000]

Where and how do i measure the rails of my Abit IC7 board ? I'm looking at getting a multimeter but have no idea where and how to measure them on my IC7, PX865PE PRO2 and P4C800 (soon)

can anyone point me to an suitable multimeter from these 2 places

http://www.dse.com.au/
or
http://www1.jaycar.com.au/

i'm using

2x 520W Topower Gold dual fan
1x 520W Topower Gold triple fan
1x 550W Antec Trupower

what do i look for spec wise, in getting a multimeter for PSU rail measuring ?

thanks

[monopoly]

Yes, I would also like to know this info as I am a novice when it come to using a MultiMeter.

[Skully]

Ok guys I'll do my best, Digital multimeter is what you want. This one listed here looks like a good one. The Q1456 @ $59.94 in this link http://www.dse.com.au/cgi-bin/dse.storefront/3f14c9d909e8500c273fc0a87f9c06d9/Search/Run You'll have to put multimeter in the search to bring up the page. Next is another thing that would make your PSU voltage checking easier is an Antec, ATX power supply tester. There usually around $15. to 20 USD.

[eva2000]

Originally posted by Skully
Ok guys I'll do my best, Digital multimeter is what you want. This one listed here looks like a good one. The Q1456 @ $59.94 in this link http://www.dse.com.au/cgi-bin/dse.storefront/3f14c9d909e8500c273fc0a87f9c06d9/Search/Run Next is another thing that would make your PSU voltage checking easier is an Antec, ATX power supply tester. There usually around $15. to 20 USD. ah i have an antec power supply tester.. the manual says to unplug all equipment and 20pin power from board and test the power supply..

do i need to do the same when measuring voltages with multi-meter ? or can i measure the voltages through power supply tester with all equipment connected and running ?

thanks :)

[Skully]

Heres a Antec tester http://www.antec-inc.com/support_productInfo_details.php?ProdID=77003 Just follow the instructions on the Antec tester!

[eva2000]

Originally posted by Skully
Heres a Antec tester http://www.antec-inc.com/support_productInfo_details.php?ProdID=77003 Just follow the instructions on the Antec tester! manual and faq links on that page are dead links heh

to test psu:
antec power supply tester says to unplug psu's 20pin ATX connector from board and plug the 20pin conenctor into the tester

to measure rails
turn volt metere dial to VDC
insert black pole (-) into COM lead and read (+) pole into the indicated +5, +3.3 and +12v leads (sockets of the 20pin connector) to measure voltages

so how can i measure rails while the whole pc is running ? via a 4pin molex connector ?

like this image right

[eva2000]

forgot the image :rolleyes:

[ThugsRook]

gotta love them pics :-)

12v and 5v ground are next to their possitives i believe.

[eva2000]

well my multimeter arrived today so poked them in and am disappointed in my new PSU's rails (triple fan version) considering both my PSU are rated exactly the same on their specs sheet


========================================
2.8C@3262mhz
Albatron PX865PE PRO2
2x 256MB GEIL PC3700 Golden Dragon DC@233mhz
128MB Gigacube 9600 PRO VIVO@stock
120GB WD 1200JB
Pioneer 16x dvd-rom
LiteOn 48x24x48x cd burner
520W Topower Gold Dual Fan PSU
with 40W total of fans

running prime95 v23.6 and cpu burnin

rail = mbm5 : real

12V = 11.73-11.86v : 11.96-11.99v
5V = 4.93-4.495v : 5.15-5.16v
========================================

2.4C@2800mhz
IC7
2x 256MB OCZ PC3700 Gold DC@233mhz
128MB Gigacube 9600 PRO@stock
120GB WD 1200JB
Yamaha CRW-F1 44x24x44x burner
520W Topower Gold Triple Fan PSU
with 30W total of fans

running goldmem in DOS for last 42+ hrs

rail = real

12V = 11.63-11.66v
5V = 4.92-4.93v
3V = 3.42v
========================================

520 Topower Gold dual fan beats out my 520W Topower Gold triple fan PSU by a mile!

both triple and dual fan psus are rated for exactly the same

> Voltage Min.Current Max.Current
+3.3V 0.1A 26A
+5V 2A 52A
+12V 0.5A 28A
-5V 0A 0.5A
-12V 0.1A 0.8A
+5V SB 0.0A 2.0A