Reply 600 of 623, by Legacysystem
makechu wrote on 2023-01-20, 16:00:Legacysystem wrote on 2023-01-18, 21:27:
Test ended. Results: […]
Test ended. Results:
Core 2 Quad Q6600 Revision G0: Worked perfectly as its B3 revision twin. After that, I tried Q6700 (It has only revision G0) and Q6700 is worked perfectly.
Core 2 Quad Q8400: Not working in 775DUAL-VSTA. It's not BIOS issue. This motherboard not supporting 1333 FSB CPU's. Its FSB support is only limited at 1066.
5 GB, 6 GB and 8 GB memories: Motherboard and BIOS detected all of them, however I couldn't use them. I'm seeing only in system properties and CPU-Z but ONLY 3 GB of them usable. Also 4 GB ram is not necessary. I tried hard but not manage to pass 3071 MB physical memory limitation. Its probably about chipset, not software issue. Thus, I returned 2+1=3 GB DDR2 667 MHz dual memory sticks. 3 GB is tolerable but I really wanted to pass that limitation but I have nothing to do about it. Continue that great motherboard with that!
Well, the FSB frequency should have nothing to do with if the CPU will work or not. I am running a 1333 MHz FSB Xeon X5460 just fine at 1066 FSB on 4CoreDual-VSTA, Rev G/A 1.00 board, like some others in this thread. The only thing is that the CPU runs at ~ 3160/1333*1066 = 2.53 GHz instead of the intended 3.16 GHz. If you have patched the bios to include all 45nm CPU microcodes, then maybe there is some power limit at play, as I guess the CPU power delivery might be weaker on 775Dual-VSTA. However, based on the pictures of the board, the regulator circuitry seems to be exactly the same...
I patched my bios with AMI bios editor (MMTool) to contain all the desktop 65nm & 45nm CPU microcodes to get the Xeon & other newer CPUs to work.
My 775DUAL-VSTA has 45 nm CPU microcode, it runs 45 nm Wolfdale 1066 MHz Core 2 Duo's but not run 1333 Core 2 Duo and 45 nm 1333 Yorkfield Quad CPU's. FSB is essential for CPU support. Also I have notebook, it has limited to 667 FSB, not runs 800 FSB CPU's, although both of share completely same architecture and lithography.
Ancient system: Intel D865GLC + P4-EE (SL7CH Gallatin) + HD 4670 AGP + 4 GB DDR400 RAM + 256 GB Corsair Neutron SSD + 3 * 320 GB IDE PATA WD HDD
Retro system 2: ASRock ConRoe865PE + Q6600 (SL9UM)+ HD 3850 AGP + 4 GB DDR400 RAM + 120 GB Kingston SSD