Member Avatar for jordy67r

hi, I have the Asus CROSSHAIR IV FORMULA 890FX Socket AM3 8 Channel Audio ATX Motherboard and I am wondering whether I will be able to put 1866mhz ram in it and whether I can put either of these processors in it (8 core and 6 core)

These are the links to the peace's I want to put on the motherboard:

ram: (2x4gb)-corsair-ddr3-vengeance-jet-black-pc3-14900-(1866)-non-ecc-cas-9-10-9-27-xmp-150v?utm_source=google+shopping&utm_medium=google+shopping

8 core processor: http://www.overclockers.co.uk/showproduct.php?prodid=CP-311-AM&groupid=701&catid=6&subcat=

6 core processor: http://www.amazon.co.uk/dp/B004DALW5K/ref=asc_df_B004DALW5K4947549?smid=A3P5ROKL5A1OLE&tag=googlecouk06-21&linkCode=asn&creative=22206&creativeASIN=B004DALW5K

My PC currently has these specifications:

motherboard: Asus CROSSHAIR IV FORMULA 890FX Socket AM3 8 Channel Audio ATX Motherboard
graphics card: radeon HD 6870
ram: DDR3 8GB corsair 1333mhz 2x 4GB
CPU: AMD Black Edition - AMD Phenom II X4 3.4 GHz Processor
HDD:1TB

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Short answer: yes — the Crosshair IV Formula can run DDR3-1866 kits and it can accept a Phenom II X6 (Thuban) without fuss; an AM3+ Bulldozer (FX) 8‑core can work too but only after the correct BIOS that adds AM3+/FX support is installed. was right to point at ASUS’s support pages, and ’s note about needing a BIOS flash is important. (manualshelf.com)

Corsair Vengeance 2×4GB 1866 (PC3‑14900, 1.5V, CL9) is commonly used on this board and the Crosshair IV’s QVL includes 1866MHz entries — but expect to set XMP/timings and voltage manually on an AMD board if the XMP profile doesn’t apply automatically. Install the kit in the recommended slots (dual‑channel pair), set DRAM voltage to 1.5V and timings to the kit’s spec, then verify stability. (manualshelf.com)

CPU notes: Phenom II X6 (AM3 Thuban) is a native fit and generally plug‑and‑play on this board. AM3+ Bulldozer FX chips are physically compatible but require a BIOS that explicitly adds AM3+/FX support — ASUS released test/BIOS builds (3017, 3027 and later) that add FX family support and some builds are marked “Beta support only,” so check the CPU support/BIO S notes before swapping. If you install an FX chip on a board with older BIOS you may not boot. (asus.com)

Practical steps: note your current BIOS version, download the latest stable Crosshair IV Formula BIOS from ASUS and flash it (use the board’s EZ‑Flash / firmware update method), then install the new CPU if needed. After hardware changes, load BIOS defaults, set memory timings/voltage or enable the kit profile, and run MemTest / a CPU stress test to confirm stability. If unsure, prefer upgrading to a Phenom II X6 for the least hassle — that matches ’s recommendation. (asus.com)

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Member Avatar for crunchie

Will at least need a BIOS flash in order to recognise the cpu.
Personally I would go with the 6 core as the Bulldozer reviews have not been that flash and to be honest, if one were to go with the BD, one would be better to fully upgrade.

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