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PSU question...

M

Mayfriday0529

Diamond Member
I can't POST my machine, after checking everything it could be the PSU
reading the manual MSI recommends a PSU of 350 or higher with a 12v or 18a or higher.

My PSU is only 12v 15a. Looking online on what's available in stores i barely see any PSU with anything cloes to 18a but i see lots of Dual 12v.

Would Dual 12v compensate?
 
You mean it won't make it thru POST or there are no lights/no beeps nothing on screen. There is a juge difference. Read the ultimate 24-pin sticky thread at the top of this section for your PSU question. And when you post with tech questions, provide adequate info to reasonably answer your question.
Make and model of mobo
Model and speed of CPU - OCing or not.
Amount of RAM and overvolting or not.
Make and model of video card
Number of hard drives.

IAC, if you are getting black screen, no video, no beeps:

Boilerplate-01:
. Common causes of failure to boot (no video, no beeps) assuming PSU isn't totally dead:
1- RAM, CPU and/or AGP video card not seated properly, a bent pin or corrosion.
2- Drive data cable on upside down or only on half the pins or shifted a pin or two (usually Floppy or Zip drives).
3- CMOS needs to be cleared (AC power must usually be TOTALLY disconnected or attempts to clear CMOS may fail) Unless your mobo does not use a power-off CMOS clear - check your mobo manual for specific info. Check CMOS battery - even new ones can be lemons.
4- On some new mobos there is a CPU protection feature (esp. on Asus/Asrock Athlon/Socket A mobos) that will not allow the system to start if there is no fan (or a fan without a working speed sensor wire) connected to the fan power connector on the mobo (specifically marked "CPU Fan"). If you tried to start your machine without a fan properly connected, you have to attach a proper and working fan with a working speed sensor and clear the CMOS before it will boot.

.bh.
 
Originally posted by: Zepper
You mean it won't make it thru POST or there are no lights/no beeps nothing on screen. There is a juge difference. Read the ultimate 24-pin sticky thread at the top of this section for your PSU question. And when you post with tech questions, provide adequate info to reasonably answer your question.
Make and model of mobo
Model and speed of CPU - OCing or not.
Amount of RAM and overvolting or not.
Make and model of video card
Number of hard drives.

IAC, if you are getting black screen, no video, no beeps:

Boilerplate-01:
. Common causes of failure to boot (no video, no beeps) assuming PSU isn't totally dead:
1- RAM, CPU and/or AGP video card not seated properly, a bent pin or corrosion.
2- Drive data cable on upside down or only on half the pins or shifted a pin or two (usually Floppy or Zip drives).
3- CMOS needs to be cleared (AC power must usually be TOTALLY disconnected or attempts to clear CMOS may fail) Unless your mobo does not use a power-off CMOS clear - check your mobo manual for specific info. Check CMOS battery - even new ones can be lemons.
4- On some new mobos there is a CPU protection feature (esp. on Asus/Asrock Athlon/Socket A mobos) that will not allow the system to start if there is no fan (or a fan without a working speed sensor wire) connected to the fan power connector on the mobo (specifically marked "CPU Fan"). If you tried to start your machine without a fan properly connected, you have to attach a proper and working fan with a working speed sensor and clear the CMOS before it will boot.

.bh.
Click to expand...


Right on.
 
if you read this thread http://forums.anandtech.com/messageview.aspx?catid=29&threadid=1646181
and this thread http://forums.anandtech.com/messageview.aspx?catid=27&threadid=1641823
you can see all i have done and the story behind the CPU

But just for all of you here are the specs.
MSI K8N NE04-F (brand new) + Athlon 64 3200 (possibly dead)
Chaintech 6200 PCI-E Video Card (brand new)
512 DDR PC3200 RAM

W/antec 350w PSU CPU fan spins but no POST, no beeps nothing.
W/new 450 W PSU from CoolerMax CPU fan spins No POST no beeps nothing.
IF you see the other threads, i have cleared cmos, taken Motheboard out of case and still nothing.

I think its the CPU and only way i will find out is until i get my brand new Athlon 64 3000+ delivered which is like two weeks away (backorder)
 
Does your PSU have the P4-12V connector (4-pin square)? That MUST be connected for that mobo to work. IAC, personally I prefer a single +12V for the extra flexibility though a split rail would probably work for that setup.
The XClio 400 or 450 are decent values for the money. But if you have a deeper pocket, there is hardly a better PSU than the Sparkle FSP550-60PLG (single rail) for under $100. (about $85.+sh per Froogle). It does have a 24-pin ATX connector and several other specialized connectors including the P4-12V that your mobo needs. And the nice thing is you shouldn't need another PSU until that one dies of old age - it's got enough to power just about anything. But there are quite a few ~350 watt PSUs with 20+ amps on the +12 now if the budget is really tight.

.bh.
 
Originally posted by: Zepper
Does your PSU have the P4-12V connector (4-pin square)? That MUST be connected for that mobo to work. IAC, personally I prefer a single +12V for the extra flexibility though a split rail would probably work for that setup.
The XClio 400 or 450 are decent values for the money. But if you have a deeper pocket, there is hardly a better PSU than the Sparkle FSP550-60PLG (single rail) for under $100. (about $85.+sh per Froogle). It does have a 24-pin ATX connector and several other specialized connectors including the P4-12V that your mobo needs. And the nice thing is you shouldn't need another PSU until that one dies of old age - it's got enough to power just about anything. But there are quite a few ~350 watt PSUs with 20+ amps on the +12 now if the budget is really tight.

.bh.
Click to expand...


I got this PSU from CoolerMax from local store 450w with Double 12v rail, one was 18a and the other was 16a and it has both the 12v connector and the new 24 pin connector and that didnt work either.
my old PSU has the 20 pin connector and also the 12v connector but its 15a.

like i said i think its the CPU like my work told me but i had hopes that it would work... now if when i get my new CPU delivered i have the same problem then i don't know but i hope i wont. I'm going to return the CoolerMax PSU and probably get something better online at cheaper cost.
 
Have you tried reseating you CPU. I have had to do that several times on one of my machines to get it going again - same with RAM and/or video card.

.bh.
 
Originally posted by: Zepper
Have you tried reseating you CPU. I have had to do that several times on one of my machines to get it going again - same with RAM and/or video card.

.bh.
Click to expand...

Yeah about three times.
 
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