Radeon HD7850 Compatible LGA775 Motherboard with high FSB limit?

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braparatat

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May 30, 2014
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Hi,

I'm looking for an LGA775 motherboard which supports the AMD Radeon HD7850 1GB Video Card and offers a high FSB limit. I currently have an AsRock G31M-GS and an Intel Core2Duo E8400, which i would like to overclock.

Sadly, said board won't boot past the 342MHz FSB mark, even though it should. Tried setting jumpers to all kinds of positions shown in manual, no result.

I used PCPartPicker but it only comes up with some Intel Boards (no OC options at all) and the Gigabyte GA-G41MT-S2PT, which, after googling, seems to have the same problem.

I'd like the board to have voltage control options and the ability to cope with FSB Freqs of 450-500.

Any tips would be greatly appreciated.
 
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Firstly, ANY motherboard with a pci express x16 slot should work with ANY graphics card thats is intended for that slot. Gen1.0, 2.0, 3.0 and the variations are supposed to be backward/forward compatible.

Secondly, p43 p45 x38 and x48 were the lga775 boards designed to overclock. These boards are around 7 years old (intel lists x38 released Q4 '07). The electronics will have aged, capacitors may be drying out, thermal material may need to be replaced, etc.

If you are just trying to burn the chip you can google padmods (changes bsel pads to change fsb freq for boards that dont support OCing) and add some voltage that way too.

Alternatively if you plan on using this daily, investing in one of these old boards (to replace your current...
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tkhsda

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Feb 3, 2013
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Firstly, ANY motherboard with a pci express x16 slot should work with ANY graphics card thats is intended for that slot. Gen1.0, 2.0, 3.0 and the variations are supposed to be backward/forward compatible.

Secondly, p43 p45 x38 and x48 were the lga775 boards designed to overclock. These boards are around 7 years old (intel lists x38 released Q4 '07). The electronics will have aged, capacitors may be drying out, thermal material may need to be replaced, etc.

If you are just trying to burn the chip you can google padmods (changes bsel pads to change fsb freq for boards that dont support OCing) and add some voltage that way too.

Alternatively if you plan on using this daily, investing in one of these old boards (to replace your current one) isn't very cost effective as there is no support from the vendors or warranty. cost: 50-200 usd used and likely abused

450-500 fsb is a little unrealistic I have a p5k-e with a e8600 in it and it does 420mhz fsb but will not post any higher even with generous vcore. You would have to be very lucky to find a board now that would go higher (people buy the better performing boards and high performers tend to burn up because they get pushed more)

A dual core processor is becoming dated and quads are becoming a requirement for some games. (GTA and NFS:Rivals were 2 i noticed). If that could affect your future usage of the PC you could also try googling lga771 to lga775 sticker mods they let you use xeon quad cores (cheaper than mainstream parts now) in the old boards. I have a x5460 @ 3.7ghz in a GA-EP45T-USB3P thats about 390 fsb. cost: time (lots of reading), sticker: 5 usd lga771 cpu: 35

Lastly, whatever you choose, READ as much as possible you will learn as you go.
 
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braparatat

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May 30, 2014
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Thanks for your reply,

I got a P5Q now and I'm pretty happy with it. I had it running at 485 FSB, however CPU & RAM wouldn't go faster, I'm pretty sure the board itself could do a tad bit more. Maybe I'm just lucky.

I mentioned the GPU compatibiliyt issue because it had issues with boards recognizing the card (even current high-end boards with latest bios). My HD7850 works nicely on the P5Q.

You're correct about investing in old parts, however I lack the cash to build an entirely new rig.
 
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tkhsda

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Feb 3, 2013
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That's about 4.4ghz you did get lucky. Congrats! ;)

I haven't had any gpus cause problems in a long time but you got it to work that's what matters. (A friend had a R9-290 that wouldn't post unless there was a monitor connected to one of the display ports).

I'm glad you got everything sorted and are happy with it.
 
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