alternatives to Quicksilver PS

[reddrag0n]

Ok, here is one for all the technical guys and gals out there. I know an MDD power supply will fit in a QS, but here is a challenge, using the same method, and maybe with a little modding (i have modding the wires in mind already) would a G5 600W to 650W PS fit in the upper section of a QS? Keeping in mind the front of the QS will be modded to have ventilation holes for the new PS and the back made to keep everything nice and tidy, will it work? I am needing dimensions of the G5 PS and the inside casing area in the QS. If this will work, then we have a new way of having more power for the older macs instead of putering out at 344W to 450W.

[aquamac]

Now that is an interesting question!

The Pinouts for the MDD Power supply are here:

www.xlr8yourmac.com/tips/MDD_ps_mods/MDD_PS_Mods.html


THE PINOUTS FOR THE G5 ARE HERE:

Power Supply P1 Connector
Pin# Signal Color ------ Pin# Signal Color
1 +5Vstb Purple --------- 13 GND Black
2 GND Black ------------- 14 Power ON Green
3 FANtach White/Yellow -- 15 GND Black
4 GND Black ------------- 16 Reserved
5 Reserved -------------- 17 GND Black
6 GND Black ------------- 18 RTNaud(GND) Black
7 +12Vaud (12V2) Yellow - 19 GND Black
8 GND Black ------------- 20 +5V sense Red
9 +3.3V sense Orange ---- 21 GND Black
10 GND Black ------------ 22 -12V Blue
11 GND Black ------------ 23 GND Black
12 Reserved ------------- 24 Reserved

Power Supply P2 Connector
Pin# Signal Color ------- Pin# Signal Color
1 +3.3V Orange ----------- 9 +5V Red
2 +3.3V Orange ---------- 10 +5V Red
3 +3.3V Orange ---------- 11 +5V Red
4 +3.3V Orange ---------- 12 +12V3 Yellow
5 Reserve --------------- 13 +12V3 Yellow
6 +12Vfan Yellow -------- 14 +12V1 Yellow
7 +12Vfan(12V2) Yellow -- 15 +12V1 Yellow
8 +25V White ------------ 16 RTNfan(GND) Black

Power Supply P3 Connector
Pin# Signal Color ------- Pin# Signal Color
1 +5V Red ---------------- 5 +5V Red
2 GND Black -------------- 6 GND Black
3 GND Black -------------- 7 GND Black
4 12V2 Yellow ------------ 8 +12V2 Yellow



This would also be a nice solution for higher power in a MDD. The only problem that may be encountered is that the G5 supply may not function unless it finds sensors at the end of the numerous wiring looms it has. But I would say it would be a good challenge anyway!

[reddrag0n]

I know the pinouts for the G5 PS (have original documentaion on the pinouts) but as for the sensors, maybe something can be made. The only problem that i foresee is space and size of both the upper compartment of a QS and the size of the new PS.
As for the connectors, the main 2 connectors could be ripped apart for each of their own power junctions. Hence the +28v and the greens and oranges.
The P3 connector by the looks of it is used strictly for molex's. (for hard drive and cd drive power connections) That can also be worked to have SATA power also but will need some work.
All in all, it should be a simple operation. Like i said earlier, it's just a matter of size restrictions.

[reddrag0n]

i just noticed that the G5 PS is going to be too wide. According to the first pic pic,

the fans are together here and on the G5 pic they are spaced apart. Now i'm hoping that this shouldn't be a problem but i need to go to someplace and measure the power supply itself and see if it can physically fit in a G4 case. If it's too wide at the girth, then yeah, a mod idea down the tubes.

edit. the internal compartment of the g4 machines are 7"W x 15"L x 2.5"H

[aquamac]

Looking at the pic, each fan is 60mm wide plus a central gap of about 12mm, then 30mm to the left approx I would say. That makes 162mm or thereabouts. I think you would have to set it down on some small "stilts" to avoid the open/close mecanism. Your going to have to try this to really find out but there is one thing for sure, with that extra width there is no way this is going in a MDD.

[reddrag0n]

Well, i was hoping for the application for it to be in a Quicksilver, but hey, if it could, that would be nice in a MDD G4. Especially for video, 4 hard drives and 2 dvd burners along with the pci card that someone might have.
About the closest measurements i could find were for the external measurements.
G4 Tower: 17.0" tall x 8.9" wide x 18.4" deep 30.0 lbs
G5 Tower: 20.1" tall x 8.1" wide x 18.7" deep 39.2 lbs
Maybe there is someway of guessing the internal measurements for this specific application.

[reddrag0n]

Finally, after all the freaking out to the US companies, i finally got an answer...
G5 power supply dimensions

6 7/8-Wide
2 3/8 -Tall
15 7/8 -Length including the fans on the back

Now if we do a comparison, we will see that other than the fact that the fans are too big, we can do the mod.
case = 7"W x 15"L x 2.5"H
PSU = 6 7/8"W x 15 7/8"L x 2 3/8"H

If we take off the fans, it will fit. Look out modding comunity, here i come with a new QS PSU!!!!

[reddrag0n]

First of all, i would like to apologize for the very long post, you can shoot me later for this.
Well, i just found out that there are a couple new psu's out there for the G5's.
(710W & 1000W) The new Dual and Quad Core psu's but there is a slight problem. They are not compatible with the G4 GE, DA, QS, MDD or G5's up to June 04. They are compatible with the G3 B&W, Yikes, Sawtooth and late 2005 G5's.
Now why only the oddballs you may ask??? Because there is no ADC +25V on the new psu's. If you look at the design of the new psu, you will understand why.

Here is a pic of the original G5 psu.


Now here are the new G5 psu's. Quite a bit different in comparison.



Now here are the readouts for the new power supply.




As i said, no more 25 volt due to the new PCI-E implementation.

[B B]

reddrag0n said:

Finally, after all the freaking out to the US companies, i finally got an answer...
G5 power supply dimensions

6 7/8-Wide
2 3/8 -Tall
15 7/8 -Length including the fans on the back

Now if we do a comparison, we will see that other than the fact that the fans are too big, we can do the mod.
case = 7"W x 15"L x 2.5"H
PSU = 6 7/8"W x 15 7/8"L x 2 3/8"H

If we take off the fans, it will fit. Look out modding comunity, here i come with a new QS PSU!!!!

I was reading around the forum and found this post redddragOn, and I would say : put the PSU outside the case. If I could do it for the Mirror, you can do the same for the QS