I was looking for a flex form factor power supply for my HTPC in lamington road last week and found out it was retailing for Rs. 1000/-. The problem i found with it was it had 20pin power connector and it was 180 watts only. Disinterested, i asked the scrap vendors on the road side if they could find a non-working flex psu case for me. I showed them a few pictures on my cell phone. Server psu is what they called them. They sent a few boys somewhere in the alley and they returned with a case and sold it to me for 100 bucks. I searched on the net and this is what they had given me.
I should mention that these server PSU's are hard to repair. I had a friend who owned one and when it went kaput, he gave it for repair at three different locations, all them had a good reputation of successfully repairing PSU's but they couldn't repair this specific psu. They had found the fault but they could not find the parts.
So anyway, I threw away the circuit minus the fan and the case. Opened up my old iball psu and took out the circuit board. Then i sawed off the aluminum heat sink till the length of the two large capacitors. I soldered the fan that came with the case(see pic) into the new circuit. Placed the modded circuit in the new case but only one screw matched the fitting, didn't matter because it fit well and didn't vibrate much. Took some multimeter readings to see it was shorting somewhere; nope. Closed the case and powered it up... IT WORKED...
...But one problem. It has a unique fan. It's SLIM. It's 60mm or 6cm 12vdc. It has 12 blades and it sounds like a jet engine(not screeching) *literally* like a jet engine. Is this normal for a flex psu? I took out the stickers and applied oil till it dripped but of no use. I searched for the fan in lammy but all i found where the usually fat one's. I bought one for 20 bucks and tried screwing it in but the transformers were getting in the way so it was of no use.
Anyone know any tricks or tips to reduce this noise? I've come so far but this sound is such that it makes you anxious after a while. It's bad enough in the day and it gets unbearable in the night. Im not sure but i think this is an AMD heat sink fan. Can someone confirm? Do these normally make such noise?
I should mention that these server PSU's are hard to repair. I had a friend who owned one and when it went kaput, he gave it for repair at three different locations, all them had a good reputation of successfully repairing PSU's but they couldn't repair this specific psu. They had found the fault but they could not find the parts.
So anyway, I threw away the circuit minus the fan and the case. Opened up my old iball psu and took out the circuit board. Then i sawed off the aluminum heat sink till the length of the two large capacitors. I soldered the fan that came with the case(see pic) into the new circuit. Placed the modded circuit in the new case but only one screw matched the fitting, didn't matter because it fit well and didn't vibrate much. Took some multimeter readings to see it was shorting somewhere; nope. Closed the case and powered it up... IT WORKED...
...But one problem. It has a unique fan. It's SLIM. It's 60mm or 6cm 12vdc. It has 12 blades and it sounds like a jet engine(not screeching) *literally* like a jet engine. Is this normal for a flex psu? I took out the stickers and applied oil till it dripped but of no use. I searched for the fan in lammy but all i found where the usually fat one's. I bought one for 20 bucks and tried screwing it in but the transformers were getting in the way so it was of no use.
Anyone know any tricks or tips to reduce this noise? I've come so far but this sound is such that it makes you anxious after a while. It's bad enough in the day and it gets unbearable in the night. Im not sure but i think this is an AMD heat sink fan. Can someone confirm? Do these normally make such noise?
