I didn't post any questions here for quite sometime now. Anyway, I just put together a new PSU and HSF on my TB1.2GHz to lower the noise down a bit. I got the Antec True430Watts and Zalman 6000cu HSF installed on my rig. However, the Zalman HSF cause a bit problem to my system because the HSF is the flower-like shape and hence cover part of the ATX power connection on my MB (Aopen MK33). I didn't know this problem until I finish installing the HSF and ready to plug the ATX cable in. In the process, I cause a bit scratches on the Antec ATX cable (just very minor scratches, not even deep or anything). Just to play safe, I wrap around the scratched cables with silicone tape (the best electrical tape around rated upto 200C).
Anyway, this solve my problem since everything is nice and fit now. But taking out and puting back the ATX cable cause me problem everytime because of the space problem caused by the Zalman HSF. So I decide to drive out and get an ATX cable extension from a local Microcenter today. It is a simple short ATX extension cable about 6" long. I figured I would leave this extension with my rig at all time and if I want to take out the ATX cable, then I just remove the cable from the extension joint instead of the MB connection. Well, everything went well and I get my system fire up.
Now here is a strange problem I found. The voltage reading from my system using MBM5 change just a bit. The +5v line is more fluctuated (from 4.91v to 4.95v) while the +12v line is more stable (it is now fix at +11.65v and every now and then move to +11.59v). Please note that these readings are from my MB which I suspect that the voltage regulator on my MB is not so good. I also measure the voltage using my multimeter (Fluke 179 if it matter) and read
the +5v as +5.047v to +5.054v
the +12v as +11.94v to +11.96v
The odd thing doesn't end there. The voltage from the multimeter reading is more stable on both +5v and +12v (I mean the fluctuated range is less than when I didn't put the ATX cable in abeit very small differences). So what going on with my system now. To summarize my problem,
After install the ATX extension cable -> MBM5 reading fluctuated range for +5v increases from normally [+4.93v/+4.95] to [+4.91/+4.95].
-> Multimeter reading fluctuated range for the +5v decreases from [+5.046/+5.058] to [+5.046/+5.054].
Is there anything I should worry about? And BTW, how can you measure the +3.3v using multimeter? Is there any ways I can measure the voltage output from the ATX power connection out of the PSU directly? I cannot start the PSU unless I connect it ATX cable to the MB. Thanks.
Mocca
P.S. The voltage fluctuation only occur relative to CPU usage which seem to be normal to me. I.e., at low cpu usgae the +5v will read +5.046v and at max cpu load, it read +5.058v (using multimeter measured from a molex plug).
Nvidia or ATI, it's all depend on what you like and system optimization :lol:
Anyway, this solve my problem since everything is nice and fit now. But taking out and puting back the ATX cable cause me problem everytime because of the space problem caused by the Zalman HSF. So I decide to drive out and get an ATX cable extension from a local Microcenter today. It is a simple short ATX extension cable about 6" long. I figured I would leave this extension with my rig at all time and if I want to take out the ATX cable, then I just remove the cable from the extension joint instead of the MB connection. Well, everything went well and I get my system fire up.
Now here is a strange problem I found. The voltage reading from my system using MBM5 change just a bit. The +5v line is more fluctuated (from 4.91v to 4.95v) while the +12v line is more stable (it is now fix at +11.65v and every now and then move to +11.59v). Please note that these readings are from my MB which I suspect that the voltage regulator on my MB is not so good. I also measure the voltage using my multimeter (Fluke 179 if it matter) and read
the +5v as +5.047v to +5.054v
the +12v as +11.94v to +11.96v
The odd thing doesn't end there. The voltage from the multimeter reading is more stable on both +5v and +12v (I mean the fluctuated range is less than when I didn't put the ATX cable in abeit very small differences). So what going on with my system now. To summarize my problem,
After install the ATX extension cable -> MBM5 reading fluctuated range for +5v increases from normally [+4.93v/+4.95] to [+4.91/+4.95].
-> Multimeter reading fluctuated range for the +5v decreases from [+5.046/+5.058] to [+5.046/+5.054].
Is there anything I should worry about? And BTW, how can you measure the +3.3v using multimeter? Is there any ways I can measure the voltage output from the ATX power connection out of the PSU directly? I cannot start the PSU unless I connect it ATX cable to the MB. Thanks.
Mocca
P.S. The voltage fluctuation only occur relative to CPU usage which seem to be normal to me. I.e., at low cpu usgae the +5v will read +5.046v and at max cpu load, it read +5.058v (using multimeter measured from a molex plug).
Nvidia or ATI, it's all depend on what you like and system optimization :lol: