Gigabyte 890XA-UD3 + Phenom II X6 1075T = No POST
Last response: in Motherboards
Why can this never go easily?
I've built a new system today, and now that the moment of truth has come, there are no active lights on the motherboard (Gigabyte 890XA-UD3.. I assume there *should* be indicator lights, but can't find reference to it in the documentation) and more troubling, there are no POST beeps at startup.
Full system spec - I stripped it down for testing purposes, and was trying to start it with only the following components connected:
- Gigabyte 890XA-UD3
- Phenom II X6 1075T + CPU fan
- Corsair tx750W PSU
- 1 x 2 GB DIMM Corsair XMS3 DDR3
Having read that a short within the case could cause problems such as this, I ran the board from outside the case, resting on the cardboard motherboard box. The only connection to my tower was the two-pin PWR SW to allow me to use the case power switch.
With the following set up, there were no post beeps, and no lights. (When I tried earlier with a video card installed, there was no video).
I've also tried flashing the BIOS. No change, same behaviour as above.
I don't want to immediately blame a faulty motherboard or CPU as this is a brand new build - all the above components are straight from the shop - but perhaps that's the case. Can anyone think of anything else I should be trying?
I've built a new system today, and now that the moment of truth has come, there are no active lights on the motherboard (Gigabyte 890XA-UD3.. I assume there *should* be indicator lights, but can't find reference to it in the documentation) and more troubling, there are no POST beeps at startup.
Full system spec - I stripped it down for testing purposes, and was trying to start it with only the following components connected:
- Gigabyte 890XA-UD3
- Phenom II X6 1075T + CPU fan
- Corsair tx750W PSU
- 1 x 2 GB DIMM Corsair XMS3 DDR3
Having read that a short within the case could cause problems such as this, I ran the board from outside the case, resting on the cardboard motherboard box. The only connection to my tower was the two-pin PWR SW to allow me to use the case power switch.
With the following set up, there were no post beeps, and no lights. (When I tried earlier with a video card installed, there was no video).
I've also tried flashing the BIOS. No change, same behaviour as above.
I don't want to immediately blame a faulty motherboard or CPU as this is a brand new build - all the above components are straight from the shop - but perhaps that's the case. Can anyone think of anything else I should be trying?
More about : gigabyte 890xa ud3 phenom 1075t post
Hi Jacquith -
24-pin main and 8-pin CPU (not to be confused with the 6+2 connections supplied for GPUs) were all connected to power. When I performed tests earlier with a GPU card, it also was powered with its 6-pin supply. Later, I was trying to get the board to post with the GPU removed.
RAM, I was trying one DIMM in slot 3. It's a 2 GB stick of Corsair XMS3 DDR3 1333 MHz (TW3X4G1333C9A G)
http://www.corsair.com/tw3x4g1333c9a.html
24-pin main and 8-pin CPU (not to be confused with the 6+2 connections supplied for GPUs) were all connected to power. When I performed tests earlier with a GPU card, it also was powered with its 6-pin supply. Later, I was trying to get the board to post with the GPU removed.
RAM, I was trying one DIMM in slot 3. It's a 2 GB stick of Corsair XMS3 DDR3 1333 MHz (TW3X4G1333C9A G)
http://www.corsair.com/tw3x4g1333c9a.html
The RAM checks-out as Tested for your MOBO -> http://www2.corsair.com/configurator/product_results.as... 1333 MHz 9-9-9-24-2T @ 1.5v and I assume that you're using DDR3_1 & DDR3_2 {Blue slots}
Next, you seem very intelligent and it doesn't seem you're looking over anything -- so unless the PSU for some reason is 'bad' then 8/10 you have a bad MOBO or a 2/10 bad CPU.
Next, you seem very intelligent and it doesn't seem you're looking over anything -- so unless the PSU for some reason is 'bad' then 8/10 you have a bad MOBO or a 2/10 bad CPU.
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Cheers, thanks very much.
The main worry I've begun to have recently, after trolling a few other forums, is just how supported the X6 1075T chips are on the motherboard right out of the box. I've read a few horror stories about BIOS updates being required before the chips would actually be supported, or a possible necessity to track down the rev. 2.0. boards instead of the rev. 1.0 board I have.
However, I can't find any information from the manufacturers to back up these claims, so am not certain how much stock to put in them. I've send a little note to Gigabyte as well, so we'll see where that leads.
In the meantime, thanks very much for your suggestions - always nice to double-check that I'm not missing something absolutely bloody obvious.
The main worry I've begun to have recently, after trolling a few other forums, is just how supported the X6 1075T chips are on the motherboard right out of the box. I've read a few horror stories about BIOS updates being required before the chips would actually be supported, or a possible necessity to track down the rev. 2.0. boards instead of the rev. 1.0 board I have.
However, I can't find any information from the manufacturers to back up these claims, so am not certain how much stock to put in them. I've send a little note to Gigabyte as well, so we'll see where that leads.
In the meantime, thanks very much for your suggestions - always nice to double-check that I'm not missing something absolutely bloody obvious.
Actually, here's one to run past you if I still happen to have your attention...
Gigabyte claims that support for the X6 1075T on the 890XA-UD3 rev. 1.0. began after BIOS version F6A (following the 'CPU Support List' link from here: http://www.gigabyte.com/products/product-page.aspx?pid=...)
Wouldn't that be a sneaky trick if the current BIOS on the board was older, and therefore couldn't find the chip? I'm beginning to suspect that may be the case, but have no means of determining what version of the BIOS is currently installed.
Cripes.
Gigabyte claims that support for the X6 1075T on the 890XA-UD3 rev. 1.0. began after BIOS version F6A (following the 'CPU Support List' link from here: http://www.gigabyte.com/products/product-page.aspx?pid=...)
Wouldn't that be a sneaky trick if the current BIOS on the board was older, and therefore couldn't find the chip? I'm beginning to suspect that may be the case, but have no means of determining what version of the BIOS is currently installed.
Cripes.
Assuming your MOBO BIOS doesn't have the latest BIOS version, then yes you'll have a problem if that CPU cannot be dummied-down by the BIOS to post so you can flash the BIOS. Frequently, a MOBO/BIOS dummies-down.
edit: in Revision 1.0 F1 was the only BIOS that didn't support 6-core AMDs, and if that's your case then yeah the dummy-down might fail.
Worst case, if you cannot get the MOBO to Post AND the BIOS isn't the latest you have 1 of 2 options:
1. Donor CPU to flash the BIOS {old system/computer shop}
2. Send to GA to be flashed
MOBO is revision 2.0
AMD Phenom II X6 1075T 3000MHz 512KBx6 6MB Thuban 45nm E0 125W 4000 BIOS => FDA
Latest = FDA
MOBO is revision 1.0
AMD Phenom II X6 1075T 3000MHz 512KBx6 6MB Thuban 45nm E0 125W 4000 BIOS => F6A
Latest = F6A
edit: in Revision 1.0 F1 was the only BIOS that didn't support 6-core AMDs, and if that's your case then yeah the dummy-down might fail.
Worst case, if you cannot get the MOBO to Post AND the BIOS isn't the latest you have 1 of 2 options:
1. Donor CPU to flash the BIOS {old system/computer shop}
2. Send to GA to be flashed
MOBO is revision 2.0
AMD Phenom II X6 1075T 3000MHz 512KBx6 6MB Thuban 45nm E0 125W 4000 BIOS => FDA
Latest = FDA
MOBO is revision 1.0
AMD Phenom II X6 1075T 3000MHz 512KBx6 6MB Thuban 45nm E0 125W 4000 BIOS => F6A
Latest = F6A
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