new power supply/ no POST no display

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Young Corey

Reputable
Mar 19, 2015
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4,510
ASUS Essentio CG5270-BP003 (purchased new in 2009) switched PSU from 500 watt stock to 650 watt. All connectedtions seated properly. No signal on monitor. Tried various (functioning) monitors connected to GPU and on board vga ports. tried a POSt speaker no beeps. Jumpers are in position according to manual. Could be a bad motherboard? Help is appreciated
 
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Young Corey

Reputable
Mar 19, 2015
4
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4,510
The PSU worked properly. All fans were spinning (GPU Chassis fans, Case LED worked, power/reset worked, hard drive spun, liquid cooler worked. I haven't removed the CPU or RAM. The capacitors on the motherboard look fine. I am using a molex to 4-pin conveter to power the CPU for reach, but that has worked for years.
 
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Young Corey

Reputable
Mar 19, 2015
4
0
4,510
I had no beep codes on startup when I borrowed a BIOS speaker from my other PC here is a spec list:
(originally purchased in 2009 as an ASUS Essentio CG5270 BP003)
(switched chassis to NZXT Gamma)
Motherboard: E4576 P5QL-VM EPU (stock)
Processor: 2.5GHz Intel Core 2 Quad Q8300 (stock) (added a all in one water block/ worked fine)
RAM: 8GB 800MHz DDR2 SDRAM (stock)
GPU: 1GB Nvidia GeForce GT 220 (stock)
HDD: Seagate Barracuda 750GB 7,200 rpm (stock)
Networking: Gigabit Ethernet; 802.11b/g/n wireless (stock) (disabled)
Optical Drive: dual-layer DVD burner (stock)
Operating System: Windows Vista Home Premium SP1 (64-bit) (stock)
PSU: Thermaltake Smart 650 Watt (added)
 
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