Tweet
I have a GIGABYTE GA-EP45-UD3P mobo and I am running an E8500 @3.8 and everything is fine. I have noticed that it is recommended that the PCI Express Frequency should never be left on Auto. Is this correct? If so why?
-
GA-EP45-UD3P, Rev.1.6, BIOS FA,
Intel E8500 Proc.@4256MHz
Antec 900 Case
Corsair 650 TX PSU
Zalman CNPS9700 CPU Cooler
OCZ Reaper DDR2 1066 4 GB RAM
XFX Radeon 4850 1 GB Video Card
3 160 GB Seagate Hard Drives
Sony DRU-810A DVD Drive
-
Re: PCI ExpressFrequency
Set it to 100...Why? Cause I said to.. Actually I don't know why but that what everyone recommends. -
Re: PCI ExpressFrequency
LOL @ Conners.
Yeah it's kind of a myth, from what I've seen so far (couple of months) I haven't seen the PCI-E frequency chnage as result of overclocking.Comment
-
Re: PCI ExpressFrequency
Thank you. I've set it to 100. I have CPUID and the temp hasn't changed when I went from AUTO to 100. I set it to 100 because Conners said to.GA-EP45-UD3P, Rev.1.6, BIOS FA,
Intel E8500 Proc.@4256MHz
Antec 900 Case
Corsair 650 TX PSU
Zalman CNPS9700 CPU Cooler
OCZ Reaper DDR2 1066 4 GB RAM
XFX Radeon 4850 1 GB Video Card
3 160 GB Seagate Hard Drives
Sony DRU-810A DVD Drive
Comment
-
Re: PCI ExpressFrequency
Thats what I set it to on all my gigabyte boards is PCI-E to [100] and Performance Enhance set to [standard] also you may want to [disable] USB Legacy storage detect in integrated periferals section. Except when you need to flash from USB of course.
Max out
BUILD #2 GA-EP45-DS3R [Rev1.0] BIOS Flashed F11e, CPU=INTEL Core2 Quad Q8200 Yorkfield-4M LGA 775 with Mugen2 cooler RAM= Mushkin 996599 link 2 x 2GB, Hard drive=WD 6400AAKS, DVD=HP dvd1160i OS=Win 7 SP1 64 bit Video=BFG 8800GTS OC edition CASE=Thermaltake Tsunami Dream P.S.=Antec TP3-650
Build #3 GA-EP45-UD3LR__rev 1.0__ BIOS F11, CPU Core2 Duo E8400 3.157GHz WMugen2 Cooler, Power Supply: Antec EA-500D 500 W, RAM: Corsair 2 GB Hard Drive: WD 160 GB OS: Win XP SP3 Video: MSI GTS450 2GB
Comment
-
Re: PCI ExpressFrequency
It's both a legacy thing and to make sure on different BIOS and board revisions that the PCIe bus stays at stock 100MHz.
Many a time on older boards, increasing the FSB by 1MHz when the PCIE was on auto also increased the PCIe frequency to 101MHz etc, so a 50MHz FSB OC would result in a PCIe frequency of 150MHz. This is not ideal and many mobos don't like to run the PCIe bus much past stock. There's no performance gain by OCing it either.
Setting 100 guarantees that the bus is at 100MHz. Auto may have gotten sensible on your board and also lock the bus to 100, but it's easy and IMO more certain and problem free to set 100 in the first place.Coolermaster CM 690 II advance Case
Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
P55A-UD4 v2.0 @ F14
Core i5 760 @ 20 x 201, 4.02GHz
TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
Corsair X32 200MB/s Read & 100MB/s Write
WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
Samsung F3 500GB Backup/Images
Noctua 1300RPM 19dB case fan (rear extraction)
3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050Comment
Comment