Hi!
I'm asking for any advice here while I still have hair left. ;-(
Bought a new system this week, but after assembly it won't POST (can't get into BIOS, no video signal).
Specs:
E6750 L722A421
Gigabyte P35-DS3R v1.0
Tuniq Tower 120
1 GB Vdata DDR2 533 Mhz (only while waiting for Corsair memory, but 533 Mhz mem should be supported) - single module
PNY Geforce 8800 GTX
Corsair HX520W
The problem:
When powering up, there's three different scenarios:
1. Continuous long beeps, which according to the motherboard manual should indicate that "Graphics card not inserted properly"
2. Continuous long beeps, but the system powers off after a few beeps, and restarts
3. No beeps at all
What I have already done/checked:
- Used recommended method with Arctic Silver 5
- All fans start up nicely, except 8800 GTX fan which starts after a delay of a few seconds. Normal?
- Both power connectors connected to 8800 GTX
- Both ATX12V (2x2) and ATX (2x12) connected to motherboard
- Monitor is fine
- Removed 8800GTX
* Without gfx at all - same problem
* With an ancient PCI video card (VGA) - same problem
* With both PCI and PCI-E (8800GTX) installed - same problem
- Tried the memory module in all four slots - same problem
- Removed memory completely - same problem
- Removed everything except CPU, CPU cooler, power switch, power LED - same problem
- Reset CMOS, both by shorting the jumper and removing the battery for a few minutes - same problem
Where to go next, some thoughts and questions:
- Shipped motherboard BIOS version. I noticed that E6750 is only supported from BIOS version F4 and forward. Is it possible that the board I bought (july 26) has an older BIOS version? I read somewhere that F4 was now the shipping version, but I guess there's no telling how long the sample I got has been lying around...
- I wasn't sure how much to tighten the screws on the Tuniq Tower. Is it possible to overtighten them and damage the CPU? The springs seemed to work as intended..
- I have not tried running outside of the case, but I find it unlikely it would change anything since a motherboard short would behave differently.
- Memory broken or not compatible with motherboard... But then one would think that the error beeps would be different.
- Motherboard could be DOA.
- CPU could be DOA (but unlikely)
- Unfortunately I have limited possibility to borrow stuff, but PCI-E video card and a DDR2 module should be the things to test first.
All advice highly appreciated!
I'm asking for any advice here while I still have hair left. ;-(
Bought a new system this week, but after assembly it won't POST (can't get into BIOS, no video signal).
Specs:
E6750 L722A421
Gigabyte P35-DS3R v1.0
Tuniq Tower 120
1 GB Vdata DDR2 533 Mhz (only while waiting for Corsair memory, but 533 Mhz mem should be supported) - single module
PNY Geforce 8800 GTX
Corsair HX520W
The problem:
When powering up, there's three different scenarios:
1. Continuous long beeps, which according to the motherboard manual should indicate that "Graphics card not inserted properly"
2. Continuous long beeps, but the system powers off after a few beeps, and restarts
3. No beeps at all
What I have already done/checked:
- Used recommended method with Arctic Silver 5
- All fans start up nicely, except 8800 GTX fan which starts after a delay of a few seconds. Normal?
- Both power connectors connected to 8800 GTX
- Both ATX12V (2x2) and ATX (2x12) connected to motherboard
- Monitor is fine
- Removed 8800GTX
* Without gfx at all - same problem
* With an ancient PCI video card (VGA) - same problem
* With both PCI and PCI-E (8800GTX) installed - same problem
- Tried the memory module in all four slots - same problem
- Removed memory completely - same problem
- Removed everything except CPU, CPU cooler, power switch, power LED - same problem
- Reset CMOS, both by shorting the jumper and removing the battery for a few minutes - same problem
Where to go next, some thoughts and questions:
- Shipped motherboard BIOS version. I noticed that E6750 is only supported from BIOS version F4 and forward. Is it possible that the board I bought (july 26) has an older BIOS version? I read somewhere that F4 was now the shipping version, but I guess there's no telling how long the sample I got has been lying around...
- I wasn't sure how much to tighten the screws on the Tuniq Tower. Is it possible to overtighten them and damage the CPU? The springs seemed to work as intended..
- I have not tried running outside of the case, but I find it unlikely it would change anything since a motherboard short would behave differently.
- Memory broken or not compatible with motherboard... But then one would think that the error beeps would be different.
- Motherboard could be DOA.
- CPU could be DOA (but unlikely)
- Unfortunately I have limited possibility to borrow stuff, but PCI-E video card and a DDR2 module should be the things to test first.
All advice highly appreciated!