20pin V 24pin

Bolerus

Bolerus

Bolerus

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I have just bought a new motherboard and it needs the 24pin power (+ the 4 pin extra )

my power supply only has 20 pin + the 4 pin litle one seperate.

Now I have seen OC sell adapters to turn 20 pin into 24 pin, but do these actually work correctly or am i going to have to buy a new psu (mine is 500w and as never let me down (so far) so I dont want to change it if i can help it)

It does boot up with just 20 pin, but im cant get an op system on it, I am going to assume the errors I am getting are really due to power shortage.


any help would be apreciated.
 
By 20 pin and 4 pin i guess you mean the 'seperate' 4 pin is actually the P4 connector (Just a name). Its a small white socket next to the CPU and is different to the 24pin connector. Usually need both types of lead plugged in. If you look in your mobo manual, it will show what i mean.
 
Think without the 'separate' 4 pin it wouldn't even boot & this connector can be found on even older ATX 1.3 PSUs.

Just get the 20>24-pin adaptor. Should be fine, but I'd consider upgrading to a ATX 2.xx spec PSU in the near future.
 
yeah the seperate 4 pin is the p4 conector (sorry it was late when i posted) and that isnt an issue.

im purely talking the 20pin rack on my psu and the 24pin socket on the motherboard

the psu is a nice heavy 500w and has been through some abuse with out a complaint, and it looks nice with its perspecs (sp) cover and pretty lights.

the motherboard is a ASUS P5N-E SLI (with 4 x 1 gig geil memmory)

.

I got up early this morning and put a very cheap and nasty psu in that was out of a build I haev done for somebody with my old motherboard and I am still having issues around getting an op system installed

But the original question still stands. are

http://www.overclockers.co.uk/showproduct.php?prodid=CB-019-AK

true convertors(and safe to use) or are they a "make do" item that doesent really help?

thanks again.

and wow wasnt expecting any replies this early lol
 
Bolerus said:
I got up early this morning and put a very cheap and nasty psu in that was out of a build I haev done for somebody with my old motherboard and I am still having issues around getting an op system installed
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Was it also 500W? Besides that, whats the complete spec of your system (also include PSU specs like below)?

 
no the 24 pin one was only a 400W not 500w like my "proper" one

spec of system is

E6400 (not overclocked in any way) on stock cooler
ASUS P5N-E SLI motherboard (2 days old)
GeIL 2GB (2x1GB) PC5300C4 667MHz Value DDR2 Dual Channel Kit (GX22GB5300DC) x 2 (to make 4 gig) (2 days old)
my psu is at home but i brought my system work with me (have a KVM here so can try anything you guys suggest as i work) *** cheap one (which came in a case) is just a standard mercury
(working on gettign a picture of the spec thing now (will update when i have it hosted, if that helps) - although it is exactly the same problem with both power supplies so i dont think that is the problem)

graphics card is a xfx 6800 XTreme 512meg pci-E
a few case fans, but have unpluuged them to see if it was some weird power drain
hard drive = 160 gig ide
dvd rw on slave ide (have tried 2 different dvd devices and 2 different ide cables )
 
Which OS? If it's Vista then just use 2gb when installing it. The download the 4gb hotfix before re-adding the other two sticks. Also give your northbridge voltage a boost for 4 sticks.
 
Bolerus said:
(working on gettign a picture of the spec thing now (will update when i have it hosted, if that helps) - although it is exactly the same problem with both power supplies so i dont think that is the problem)
Click to expand...
Meant you could read the specs & post them here. Doesn't have to be a pic.

Mainly curious with the +12V Rail reading. Minimum recommended these days is 18A single or >26A total if combined :)
 
Personally, haven't noticed any difference. My A8N-SLI and the P5N32 have both been run on 20 and 24 pin (24 pin was the adapter) and both ran the same overclock just as stable.

The only reason I kept the 24 pin adapter on there is cos I paid for it and didn't want it gathering dust :D
 
just been out and bought a new psu, only a cheap one, but it will have to do.

operating system wise, it was going to be xp 64 (plan was x64 on one hard drive vista on another once it is all sorted) I have to legit op systems so why not use them.

how do you boost the northbridge volts. sorry I ahev never overclocked so never messed with voltage.

the new psu

has +3.3v = 30a
+5v = 35a
+12V = 28A

is that ok?
and the cheap one im taking out now, that came with free case is 12v = 14a

i have read that it could be a memmory incompatibility (with itself) if i take 2 out and instal windows, then put the other 2 back in will it be ok, or do i need to take some back to overclockers and get it swapped?
 
ok

so i took 2 gig of memmory out, and it formated and installed windows first time (i just put mb cd in to install drivers)

I have read on here about upping voltages etc to allow 4 gig

all i have to say is "um"

can any body point me in the right direction please.
 
yeah ok, but what do i have to change, what do i have to change it to, had a look in there and there are dozens and dozens of combinations

also

my cpu fsb is 1066
my memmory speed is 666.7 should i down that to 533 to match the cpu?
does it need to be linked or unlinked

I coudl go on and on.
 
Bolerus said:
yeah ok, but what do i have to change, what do i have to change it to, had a look in there and there are dozens and dozens of combinations

also

my cpu fsb is 1066
my memmory speed is 666.7 should i down that to 533 to match the cpu?
does it need to be linked or unlinked

I coudl go on and on.
Click to expand...

NB was only 1.2v or 1.3v wasn't it?
 
everything was / is set to auto, and it doesent say what the actual settign is

with 2 gig in, everythign runs fine, put the extra 2 gig in and i am getting blue screens the moemnt i try and load windows.

any body got any sugestions. I am afraid if you are going to ask me to change any settigns in bios you will need to be exact and dont use abreviations if you can help it, because i really dont have a clue, and am starting to get $£%£$% off with it now.

I do really apreciate your help btw, :) (even more when its working lol)
 
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Advanced>Set AI Tuning to manual>Voltage Control>NB Core Voltage and up it by 0.1v.

Also up the Memory Voltage to 1.920v if it isn't already.

You may also want to go into Advanced>FSB and Memory Config and set FSB - Memory Clock Mode to Unlinked.
 
Ooo, good point. You'll probably have to dial in the memory speeds too, I had to on mine with 2gig. What Geil stuff did you get? If it's the black dragon or low latency stuff you'll have to set the memory speeds to 4-4-4-12-1T then the volts as suggested above.

I'll double check what menus tonight when I get home as I have a similar board to you.
 
thanks

yeah its 444 12 (or at least that is what it says on the sticker)
each stick is
1gb pc2-5300
ddr2-667 cl=4-4-4-12
gx22gb5300dc
voltage 1.8


now to add more complication i just ran memtest on it with all 4 gig, for piece of mind. and there were dozens and dozens of errors, will that be because of the voltage being wrong or are all my problems down to faulty memmory?
 
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