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Mojave on Biostar TH55HD Socket 1156 / NVidia 9800GT

Joined
Sep 22, 2011
Messages
281
Motherboard
Thinkpad T61-Clover
CPU
T9300/ICH8M
Graphics
Quadro NVS 140m, 1280x800
Mac
MacBook Pro
I've tested my software builds on an SSD (SATA 3) connected to the "built-in" SATA 2 ports (on the Biostar TH55HD motherboard) and on an SSD (SATA 3) connected to the I/O Crest PCIe x2 SATA 3 card. Build times are virtually identical, so the SATA 3 card did not improve performance. This indicates that disk i/o is not the bottleneck on this system or that the I/O Crest card performance isn't as advertised. Not sure which (yet).
 
Joined
Sep 22, 2011
Messages
281
Motherboard
Thinkpad T61-Clover
CPU
T9300/ICH8M
Graphics
Quadro NVS 140m, 1280x800
Mac
MacBook Pro
I couldn't resist the temptation to try a Xeon X3460 (< $13 on Ebay) with my Biostar TH55HD motherboard. The X3460 has two additional turbo multipliers above the X3450 (x25 and x26). I delidded the X3460, applied my own thermal paste between the CPU die and the heat spreader and left my CPU Clock at 160. The only BIOS change needed was to set VCore to +.04V (all speedstep settings remained unchanged). MacOS Mojave needed no changes and CPU multiplier works perfectly (observing low multiplier of x9.0 with turbo multipliers of x21-x26). If you already have an X3450 overclocked as I described earlier, it's not worth the effort, but it was a fun experiment. Attached pix show the delidded X3460, Geekbench results and a HWMonitor screenshot with all 4 cores running at x26 (4.16GHz).

EDIT: Uploaded a new Geekbench result after realizing that my BIOS memory settings were wrong. Newer Geekbench results are with memory timing set by XMP2 (8-8-8-24).

EDIT2: After using the upgraded Mac for a day, the system seems noticeably more responsive. As I noted earlier, the upgrade from an overclocked X3450 to an overclocked X3460 is probably not worth the time, but you won't be disappointed.
 

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Joined
Sep 22, 2011
Messages
281
Motherboard
Thinkpad T61-Clover
CPU
T9300/ICH8M
Graphics
Quadro NVS 140m, 1280x800
Mac
MacBook Pro
I applied 10.14.6 Supplemental Update 2 to my Biostar TH55HD / Xeon X3460 (MP5,1) and my Dell Latitude E6410 (MBP6,2). Both updates worked flawlessly.
 
Joined
Sep 22, 2011
Messages
281
Motherboard
Thinkpad T61-Clover
CPU
T9300/ICH8M
Graphics
Quadro NVS 140m, 1280x800
Mac
MacBook Pro
I read that increasing BCLK (what I have been referring to as "CPU Clock" since that's how my BIOS labels it) on Socket 1156 motherboards may require an increase in CPU VPLL. I increased VPLL and found that my multicore Geekbench score is higher. You may need to experiment with VPLL if you're overclocking. From what I've read, you won't need VPLL over 1.9V. The attached Geekbench score is with CPU VPLL at 1.830V, CPU VCore at +.04V and CPU VTT on Auto. All speedstep/power-saving settings are enabled and PCIe CLK is set to 100.
 

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